The CosmoSim database TAP Service

The CosmoSim database TAP Serviceivo://www.cosmosim.org/tapLeibniz Institute for Astrophysics Potsdam (AIP)CosmoSimhttps://www.cosmosim.org/static/core/img/favicon.png2026-04-15T00:00:00ZHarry Enke

An der Sternwarte 16, 14482 Potsdam, Germany

henke@aip.de+49 (0) 331 7499 433tapThe TAP Service registry for www.cosmosim.org.https://www.cosmosim.org/tapCataloghttps://www.cosmosim.org/tapADQL2.0PostgreSQL14.5application/xmlvotabletext/csvcsvapplication/fitsfitsapplication/parquetparquet5000000500000010000000https://www.cosmosim.org/tap/asynchttps://www.cosmosim.org/tap/synchttps://www.cosmosim.org/tap/capabilitieshttps://www.cosmosim.org/tap/tableshttps://www.cosmosim.org/tap/examplesbolshoiThe Bolshoi simulation (from Russian “big”) has a simulation volume of (250 Mpc/h)3 and a mass resolution of 1.35 * 108 Msun/h, which is more than a factor of 6 better than the mass resolution of the Millennium simulation. Its details are described in Klypin, Trujillo-Gomez & Primack 2010, some more information and images can be found at the [Bolshoi simulation homepage](http://hipacc.ucsc.edu/Bolshoi/). The main properties and cosmological parameters are listed in the table below; it uses the same WMAP5 cosmology as the [MultiDark simulation MDR1](/metadata/mdr1/).bolshoi.availhalosOverview for which snapshots/redshifts halo data are available.snapnumtime.epochshortredshifttime.epochdoublebdmvintbdmwintbdmvprofintbdmwprofintfofintfof1intfof2intfof3intfof4intfof5int

bolshoi.bdmvBDM (Bound Density Maximum) catalogue for all available snapshots, calculated using the standard overdensity criterion with 360\*ρback (background density). <code>bdmid = ( snapnum\*108 +(number in BDM catalogue) )</code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

bolshoi.bdmvprofHalo profiles of the BDMV catalogue for all available snapshots, calculated using the standard overdensity criterion with 360*ρback (background density).bdmprofileidunique id for BDM radial profile binmeta.id;meta.mainlongbdmidunique id for bdm-halo, same as the <code>bdmid</code> in the corresponding halo cataloguemeta.idlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlongr_rviraverage radius of particles in bin normalized to virial radius of all (bound + unbound) particlesphys.size.radiusdoublerbinouter radius of binh-1.kpcphys.size.radiusdoublenpnumber of all particles inside radial binmeta.numberintmassmass of all particles within radius Rbin of binh-1.solMassphys.massdoubledensdifferential density inside radial bin calculated from all particles at R_Rvir, comoving volumeh3.solMass-1.kpc-3phys.densitydoublevcirccircular velocity sqrt(GM/r) of all particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoublevproprmsroot mean square proper velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoublevradaverage radial velocity of all particles inside radial binkm.s-1phys.velocdoublevradrmsroot mean square radial velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundr_rviraverage radius of particles in bin normalized to virial radius of only bound particlesphys.size.radius;arith.ratiodoubleboundnpnumber of only bound particles inside radial binmeta.numberintboundmassmass of bound particles within radius Rbin of binh-1.solMassphys.massdoublebounddensdifferential density inside radial bin calculated from bound particles only at R_Rvir; comoving volumeh3.solMass-1.kpc-3phys.densitydoubleboundvcirccircular velocity sqrt(GM/r) of bound particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoubleboundvcircrmsroot mean square circular velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundvradaverage radial velocity of bound particles inside radial binkm.s-1phys.velocdoubleboundvradrmsroot mean square radial velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondouble

bolshoi.bdmwBDM catalogue for all available snapshots, calculated using 200*ρcrit (critical density) for defining the halo boundary.bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

bolshoi.bdmwprofHalo profiles of the BDMW catalogue for all available snapshots, calculated using 200*ρcrit (critical density) for defining the halo boundary.bdmprofileidunique id for BDM radial profile binmeta.id;meta.mainlongbdmidunique id for bdm-halo, same as the <code>bdmid</code> in the corresponding halo cataloguemeta.idlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlongr_rviraverage radius of particles in bin normalized to virial radius of all (bound + unbound) particlesphys.size.radiusdoublerbinouter radius of binh-1.kpcphys.size.radiusdoublenpnumber of all particles inside radial binmeta.numberintmassmass of all particles within radius Rbin of binh-1.solMassphys.massdoubledensdifferential density inside radial bin calculated from all particles at R_Rvir, comoving volumeh3.solMass-1.kpc-3phys.densitydoublevcirccircular velocity sqrt(GM/r) of all particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoublevproprmsroot mean square proper velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoublevradaverage radial velocity of all particles inside radial binkm.s-1phys.velocdoublevradrmsroot mean square radial velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundr_rviraverage radius of particles in bin normalized to virial radius of only bound particlesphys.size.radius;arith.ratiodoubleboundnpnumber of only bound particles inside radial binmeta.numberintboundmassmass of bound particles within radius Rbin of binh-1.solMassphys.massdoublebounddensdifferential density inside radial bin calculated from bound particles only at R_Rvir; comoving volumeh3.solMass-1.kpc-3phys.densitydoubleboundvcirccircular velocity sqrt(GM/r) of bound particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoubleboundvcircrmsroot mean square circular velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundvradaverage radial velocity of bound particles inside radial binkm.s-1phys.velocdoubleboundvradrmsroot mean square radial velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondouble

bolshoi.dens256Density fields for a number of snapshot numbers (see Redshifts-table or check with <code>SELECT DISTINCT snapnum FROM bolshoi.dens256</code>), for 2563 grid cells; less strongly smoothed than for dens256_z0.webidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-direction; <code>ix= floor(x/nx)</code>; multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintiyspatial grid index, y-direction; <code>iy = floor(y/ny)</code>pos.cartesian.yintizspatial grid index, z-direction; <code>iz = floor(z/nz)</code>pos.cartesian.zintphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintdensoverdensity, <code> dens = (ρ - ρb)/ρb</code> <code>ρb</code> = mean background density of matterphys.density;arith.ratiodoublesnapnumunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linetime.epochint

bolshoi.dens256_z0Density field for redshift 0, for 2563 grid cells; strongly smoothedwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-direction; <code>ix= floor(x/nx)</code>; multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintiyspatial grid index, y-direction; <code>iy = floor(y/ny)</code>pos.cartesian.yintizspatial grid index, z-direction; <code>iz = floor(z/nz)</code>pos.cartesian.zintphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintdensoverdensity, <code> dens = (ρ - ρb)/ρb</code> <code>ρb</code> = mean background density of matterphys.density;arith.ratiodouble

bolshoi.dens512Density field for redshift 0, for 5123 grid cellswebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-direction; <code>ix= floor(x/nx)</code>; multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintiyspatial grid index, y-direction; <code>iy = floor(y/ny)</code>pos.cartesian.yintizspatial grid index, z-direction; <code>iz = floor(z/nz)</code>pos.cartesian.zintphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintdensoverdensity, <code> dens = (ρ - ρb)/ρb</code> <code>ρb</code> = mean background density of matterphys.density;arith.ratiodoublesnapnumunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linetime.epochint

bolshoi.dens512_z0webidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-direction; <code>ix= floor(x/nx)</code>; multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintiyspatial grid index, y-direction; <code>iy = floor(y/ny)</code>pos.cartesian.yintizspatial grid index, z-direction; <code>iz = floor(z/nz)</code>pos.cartesian.zintphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintdensoverdensity, <code> dens = (ρ - ρb)/ρb</code> <code>ρb</code> = mean background density of matterphys.density;arith.ratiodouble

bolshoi.fofMain Friends-of-Friends catalogue for all available snapshots, level 0 (relative linking length 0.17); <code>fofid = (snapnum\*10 + level)\*108 +(rank in FOF-file)</code>fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.fof1Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.fof2Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.fof3Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.fof4Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.fof5Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoi.linklengthOverview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF5 tables)linking_levelnumber of level as used for database idsmeta.mainshortlinklengthlinking length in Mpc/hh-1.Mpcpos.distancedoublelinklength_relrelative linking lengthpos.distance;arith.ratiodoublelevelinfilelevel number as used in the original file namesmeta.mainint

bolshoi.redshiftsOverview on snapshot numbers (`snapnum`) and corresponding redshiftssnapnumsnapshot numbertime.epochshortaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdouble

bolshoi.tweb256Eigenvectors and eigenvalues of the gravitational tidal tensor, for a 2563 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

bolshoi.tweb512Eigenvectors and eigenvalues of the gravitational tidal tensor, for a 5123 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

bolshoi.vweb256Eigenvectors and eigenvalues of the velocity shear tensor, for a 2563 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

bolshoi.vweb512Eigenvectors and eigenvalues of the velocity shear tensor, for a 5123 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

bolshoipThe BolshoiP simulation belongs to the BolshoiP Project and is kin to the [Bolshoi simulation](/metadata/bolshoi/). It has the same simulation volume of (250 Mpc/h)3 and a mass resolution of 1.35 * 108 Msun/h, but is based on the Planck cosmology.bolshoip.availhalosGives an overview on the snapshots, for which halo data are stored in the FOF or BDM tables.snapnumnumber of snapshottime.epochshortredshiftcorresponding redshifttime.epochdoublebdmvavailability of BDMV halo catalog (value of this field is "B" or the number of halos when available, otherwise it is NULL).intbdmwavailability of BDMW halo catalog (value of this field is "B" or the number of halos when available, otherwise it is NULL).intfofavailability of FOF halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof1availability of FOF1 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof2availability of FOF2 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof3availability of FOF3 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof4availability of FOF4 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof5availability of FOF5 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).int

bolshoip.bdmvBDM (Bound Density Maximum) catalogue for all available snapshots, calculated using the standard overdensity criterion with 360\*ρback (background density). <code>bdmid = ( snapnum\*108 +(number in BDM catalogue) )</code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

bolshoip.bdmwBDM catalogue for all available snapshots, calculated using 200\*ρcrit (critical density) for defining the halo boundary. <code>bdmid = ( snapnum\*108 +(number in BDM catalogue) )</code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

bolshoip.fofMain Friends-of-Friends catalogue for all available snapshots, level 0 (relative linking length 0.17); <code>fofid = (snapnum\*10 + level)\*108 +(rank in FOF-file)</code>fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.fof1Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.fof2Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.fof3Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.fof4Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.fof5Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 5 (linking length 0.005313). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

bolshoip.redshiftsOverview on snapshot numbers (`snapnum`) and corresponding redshiftssnapnumsnapshot numbertime.epochshortaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdouble

bolshoip.rockstarRockstar halo catalogue with consistent merger treesdbidunique database id for the halometa.id;meta.mainlongrockstaridunique id for the halo, same as in Rockstar cataloguemeta.id;meta.mainlongscalescale factor, same as aexp in Redshifts-tabletime.epochdoubledesc_scalescale factor of the descendant halo, if there is onetime.epochdoubledescidrockstarId of the descendantmeta.id.assoclongnprognumber of progenitorsmeta.numberintpidrockstarId of least massive host halo, -1 if it is a distinct halometa.id.assoclongupidrockstarId of most massive host halo, only different from pid, if halo lies within two or more larger halosmeta.id.assoclongdesc_pidpId of the descendant halo, if applicablemeta.id.assoclongphantomflag for phantom halos, non-zero if the halo is interpolated across timestepsmeta.codeshortmvir_samhalo mass, smoothed across accretion history; always greater than the sum of halo masses of contributing progenitors; only for use with selected semi-analytic modelsh-1.solMassphys.massdoublemvirhalo mass (within virial radius)h-1.solMassphys.massdoublervirhalo radius (comoving)h-1.kpcphys.size.radiusdoublersscale radius (comoving)h-1.kpcphys.size.radiusdoublevrmsvelocity dispersion (physical)km.s-1phys.veloc.dispersiondoublemmpflag indicating if the halo is the most massive progenitor or notshortlastmm_scalescale factor of the last major merger (mass ratio > 0.3)doublevmaxmaximum circular velocity (physical)km.s-1phys.velocdoublexhalo position, comovingh-1.Mpcpos.cartesian.xdoubleyhalo position, comovingh-1.Mpcpos.cartesian.ydoublezhalo position, comovingh-1.Mpcpos.cartesian.zdoublevxhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.xdoublevyhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.ydoublevzhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.zdoubleangmom_xhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoublespinhalo spin parameterdoublebreadthfirstidId for breadth-first ordering of halos within a treemeta.idlongdepthfirstidId for depth-first ordering of halos within a treemeta.idlongtreerootidrockstarId of the halo at the last timestep in the treemeta.id.assoclongforestidlongorighaloidoriginal halo Id from halo findermeta.id.crosslongrockstar_snapnumsnapshot number (from which the halo originated), subsequent numbers for Rockstar cataloguetime.epochintsnapnumsnapshot number (from which the halo originated), same as in other halo cataloguestime.epochintnextcoprog_depthfirstiddepthFirstId of next coprogenitormeta.id.assoclongmainleaf_depthfirstiddepthFirstId of last leaf on the main branchmeta.id.assoclonglastprog_depthfirstiddepthFirstId of last progenitormeta.id.assoclongrs_klypinScale radius determined using Vmax and Mvir (see Rockstar paper)phys.size.radiusdoublemvir_allMass enclosed within the specified overdensity, including unbound particlesh-1.solMassphys.massdoublem200bMass enclosed within overdensity 200*rho_bh-1.solMassphys.massdoublem200cMass enclosed within overdensity 200*rho_crith-1.solMassphys.massdoublem500cMass enclosed within overdensity 500*rho_crith-1.solMassphys.massdoublem2500cMass enclosed within overdensity 2500*rho_crith-1.solMassphys.massdoublexoffOffset of density peak from average particle position, comovingh-1.kpcpos.distancedoublevoffOffset of density peak from average particle velocity, comovingkm.s-1phys.veloc;arith.diffdoubleaxisratio_2_1ratio of second largest shape ellipsoid axes to largest shape ellipsoid axis;shapes determined by method in Allgood et al. (2006)doublespin_bullockBullock spin parameter (J/(sqrt(2)*GMVR))doubleaxisratio_3_1ratio of smallest shape ellipsoid axes to largest shape ellipsoid axisdoubleaxis1_xcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_ycoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_zcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxisratio_2_1_500cratio of second largest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxisratio_3_1_500cratio of smallest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxis1_x_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_y_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_z_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoublet_uratio of kinetic to potential energiesphys.energy;arith.ratiodoublem_pe_behrooziPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublem_pe_diemerPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublemacchalo mass at accretion of the halo to its hosth-1.solMassphys.massdoublempeakpeak mass over accretion historyh-1.solMassphys.massdoublevaccVmax at accretionkm.s-1phys.velocdoublehalfmass_scalescale factor at which the most massive progenitor (mmp) reaches 0.5*Mpeaktime.epochdoublevpeakpeak Vmax over accretion historykm.s-1phys.velocdoubleaccrate_instinstantaneous halo mass accretion rateh-1.solMass.yr-1doubleaccrate_100myrhalo mass accretion rate averaged over passt 100 Myrh-1.solMass.yr-1doubleaccrate_1tdynhalo mass accretion rate averaged over past 1*virial dynamical timeh-1.solMass.yr-1doubleaccrate_2tdynhalo mass accretion rate averaged over past 2*virial dynamical timeh-1.solMass.yr-1doubleaccrate_mpeakgrowth rate of Mpeak, averaged from current z to z+0.5h-1.solMass.yr-1doublempeak_scalescale factor at which Mpeak was reachedtime.epochdoubleacc_scalescale factor at which satellites were accretedtime.epochdoublefirst_acc_scalescale factor at which current and former satellites first passed through a larger halotime.epochdoublefirst_acc_mvirMvir at First_Acc_scaleh-1.solMassphys.massdoublefirst_acc_vmaxVmax at First_Acc_scalekm.s-1phys.velocdoubleixspatial grid index, x-directionpos.cartesian.xintvmax_mpeakhalo Vmax at the scale at which Mpeak was reachedkm.s-1phys.velocdoubleiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curveint

mdplThe MDPL simulation was performed with the same (1 Gpc/h)3 box size as MDR1, but with more than 6 times higher mass resolution, using nearly 57 billion particles in a cosmology that is consistent with the Planck data (2013). It was performed using the L-Gadget2 code. Some details can be found in [Klypin et al. 2014](https://doi.org/10.1093/mnras/stw248).mdpl.availhalosGives an overview on the snapshots, for which halo data are stored in the FOF or BDM tables. It additionally gives the number of halos/FOF groups for each snapshot.snapnumnumber of snapshottime.epochshortredshiftcorresponding redshifttime.epochdoublebdmwintfofavailability of FOF halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof1availability of FOF1 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof2availability of FOF2 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof3availability of FOF3 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof4availability of FOF4 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).intfof5availability of FOF5 halo catalog (value of this field is "F" or the number of FOF groups when available, otherwise it is NULL).int

mdpl.bdmwBDM catalogue for all available snapshots, calculated using 200ρcrit (critical density) for defining the halo boundary. <code>bdmIid = snapnum*1011 + nincat </code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagflag indicating if substructure or host: -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.kpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.kpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

mdpl.fofMain Friends-of-Friends catalogue for all available snapshots, level 0. Contrary to the Bolshoi and MDR1 simulation, a relative linking length of 0.20 was used. <code>fofid = (snapnum\*10+level)\*1011 + ninfile </code>fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.fof1Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.fof2Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.fof3Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.fof4Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.fof5Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths (factor 2 for each step), levels 1 (linking length 0.10) to 5 (linking length 0.00625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl.linklengthOverview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF5 tables)linking_levelnumber of level as used for database idsmeta.mainshortlinklengthlinking length in Mpc/hh-1.Mpcpos.distanceshortlinklength_relrelative linking lengthpos.distance;arith.ratiodoublelevelinfilelevel number as used in the original file namesmeta.mainint

mdpl.redshiftsOverview on snapshot numbers (`snapnum`) and corresponding redshiftssnapnumsnapshot numbertime.epochshortaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdouble

mdpl2The MultiDark Planck 2 simulation belongs to the series of MultiDark simulations with Planck cosmology. It is kin to the [MDPL](/metadata/mdpl/) simulation, with the same box size, cosmological parameters and particle resolution, but a different initial seed. If you are in doubt whether to use MDPL or MDPL2, we recommend to use MDPL2, since there will be more data products available for this simulation in the future (e.g. Rockstar-catalogues).mdpl2.availhalosGives an overview on the snapshots, for which halo data are stored in the halo catalogues tables. In particular, it gives the number of halos/FOF groups for each snapshot.snapnumtime.epochshortredshifttime.epochdoublerockstarintfofintfof1intfof2intfof3intfof4intfof5int

mdpl2.fofMain Friends-of-Friends catalogue for all available snapshots, level 0. Contrary to the Bolshoi and MDR1 simulation, a relative linking length of 0.20 was used. <code>fofid = (snapnum\*10+level)\*1011 + ninfile </code>fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.fof1Friends-of-Friends halo catalogue, level 1 with relative linking length 0.1fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.fof2Friends-of-Friends halo catalogue, level 2 with relative linking length 0.05fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.fof3Friends-of-Friends halo catalogue, level 3 with relative linking length 0.025fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.fof4Friends-of-Friends halo catalogue, level 4 with relative linking length 0.0125fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.fof5Friends-of-Friends halo catalogue, level 5 with relative linking length 0.00625fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdpl2.galacticusGalacticus catalog of semi-analytical galaxies, built using the Rockstar catalogdbidunique database ID for this table, constructed from file number, snapnum and row in filemeta.id;meta.mainlongsnapnumsnapshot number (same as in Rockstar-catalogues)time.epochshortredshiftredshift of the universe for this timesteptime.epochdoublerockstaridID in corresponding dark matter halo in Rockstar cataloguemeta.id;meta.mainlongdepthfirstiddepthFirstId of dark matter halo in corresponding Rockstar cataloguemeta.id;meta.mainlongforestidID of the merger forest in corresponding Rockstar cataloguemeta.idlonghosthaloidsubhalo index from Rockstar output, same as rockstarIdmeta.idlongmainhaloidcentral halo index from consistent-trees outputmeta.idlonggalaxytypetype of the galaxy: 0=central, 1=satellite, 2=orphan satelliteshorthalomassremaining bound mass of a satelliteh-1.solMassdoublexcomoving x-positionh-1.Mpcpos.cartesian.xdoubleycomoving y-positionh-1.Mpcpos.cartesian.ydoublezcomoving z-positionh-1.Mpcpos.cartesian.zdoublevxx-component of physical velocitykm.s-1phys.velocdoublevyy-component of physical velocitykm.s-1phys.velocdoublevzz-component of physical velocitykm.s-1phys.velocdoublespinspin parameterdoublespinxspin vector, x-componentdoublespinyspin vector, y-componentdoublespinzspin vector, z-componentdoublemstarspheroidstellar mass in spheroidh-1.solMassdoublemstardiskstellar mass in diskh-1.solMassphys.massdoublemcoldspheroidgas mass in spheroidh-1.solMassdoublemcolddiskgas mass in diskh-1.solMassphys.massdoublemhotmass in hot haloh-1.solMassdoublembhmass of the central supermassive black holeh-1.solMassphys.massdoublesfrspheroidstar formation rate in spheroidh-1.solMass.Gyr-1phys.SFRdoublesfrdiskstar formation rate in diskh-1.solMass.Gyr-1phys.SFRdoublesfrtotal star formation rate (disk+spheroid)h-1.solMass.Gyr-1phys.SFRdoublelstarsdssutotal luminosity in observed frame4.4659e13.W.Hz-1phys.luminositydoublelstarsdssgtotal luminosity in observed frame4.4659e13.W.Hz-1phys.luminositydoublelstarsdssrtotal luminosity in observed frame4.4659e13.W.Hz-1phys.luminositydoublelstarsdssitotal luminosity in observed frame4.4659e13.W.Hz-1phys.luminositydoublelstarsdssztotal luminosity in observed frame4.4659e13.W.Hz-1phys.luminositydoublemzgasspheroidmass of metals in gas in spheroid componenth-1.solMassphys.massdoublemzgasdiskmass of metals in gas in disk componenth-1.solMassphys.massdoublemzhothalomass of metals in hot haloh-1.solMassphys.massdoublemzstarspheroidmass of metals in stars in spheroid componenth-1.solMassphys.massdoublemzstardiskmass of metals in stars in disk componenth-1.solMassphys.massdoublemvir_sammass Mvir_SAM of the corresponding dark matter halo in Rockstarh-1.solMassphys.massdoublebasictimelastisolatedtime at which the dark matter halo was last isolated (i.e. not a subhalo)time.epochdoublesatellitemergetimetime until satellite will merge with hostdoubleblackholecountnumber of supermassive black holes in the galaxyintblackholespinspin of the central supermassive black holedoublerdiskdisk scale lengthh-1.Mpcphys.sizedoublerspheroidspheroid scale lengthh-1.Mpcphys.sizedoublerhotouterouter radius of hot haloh-1.Mpcphys.sizedoublevdiskcircular velocity of diskkm.s-1phys.veloc.rotatdoublevspheroidcircular velocity of spheroidkm.s-1phys.veloc.rotatdoubleangmomdiskangular momentum of disk component, physical coordinatessolMass.Mpc.km.s-1posdoubleangmomspheroidangular momentum of spheroid component, physical coordinatessolMass.Mpc.km.s-1posdoubleangmomhotangular momentum in hot halo, physical coordinatessolMass.Mpc.km.s-1posdoubleinclinationrandomly selected inclination for the disk in degreesdegdoubleninfilesnapnumnumber of galaxy in the data file, inside the output group for current snapnumlongfilenumnumber of the file from which the data was uploadedintixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curvelong

mdpl2.linklengthOverview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF5 tables)linking_levelmeta.mainshortlinklengthdoublelinklength_reldoublelevelinfilemeta.mainint

mdpl2.redshiftsOverview on snapshot numbers (`snapnum`) and corresponding redshifts.snapnumsnapshot numbertime.epochshortaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdoubleorig_snapnumshort

mdpl2.rockstarROCKSTAR halo catalogue with consistent merger trees for all available snapshots.dbidunique database id for the halometa.id;meta.mainlongrockstaridunique id for the halo, same as in Rockstar cataloguemeta.id;meta.mainlongscalescale factor, same as aexp in Redshifts-tabletime.epochdoubledesc_scalescale factor of the descendant halo, if there is onetime.epochdoubledescidrockstarId of the descendantmeta.id.assoclongnprognumber of progenitorsmeta.numberintpidrockstarId of least massive host halo, -1 if it is a distinct halometa.id.assoclongupidrockstarId of most massive host halo, only different from pid, if halo lies within two or more larger halosmeta.id.assoclongdesc_pidpId of the descendant halo, if applicablemeta.id.assoclongphantomflag for phantom halos, non-zero if the halo is interpolated across timestepsmeta.codeshortmvir_samhalo mass, smoothed across accretion history; always greater than the sum of halo masses of contributing progenitors; only for use with selected semi-analytic modelsh-1.solMassphys.massdoublemvirhalo mass (within virial radius)h-1.solMassphys.massdoublervirhalo radius (comoving)h-1.kpcphys.size.radiusdoublersscale radius (comoving)h-1.kpcphys.size.radiusdoublevrmsvelocity dispersion (physical)km.s-1phys.veloc.dispersiondoublemmpflag indicating if the halo is the most massive progenitor or notshortlastmm_scalescale factor of the last major merger (mass ratio > 0.3)doublevmaxmaximum circular velocity (physical)km.s-1phys.velocdoublexhalo position, comovingh-1.Mpcpos.cartesian.xdoubleyhalo position, comovingh-1.Mpcpos.cartesian.ydoublezhalo position, comovingh-1.Mpcpos.cartesian.zdoublevxhalo velocity, physical, just "a dx/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.xdoublevyhalo velocity, physical, just "a dy/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.ydoublevzhalo velocity, physical, just "a dz/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.zdoubleangmom_xhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoublespinhalo spin parameterdoublebreadthfirstidId for breadth-first ordering of halos within a treemeta.idlongdepthfirstidId for depth-first ordering of halos within a treemeta.idlongtreerootidrockstarId of the halo at the last timestep in the treemeta.id.assoclongforestidrockstarId of forest to which the halo with the given treeRootId belongsmeta.id.assoclongorighaloidoriginal halo Id from halo findermeta.id.crosslongrockstar_snapnumsnapshot number (from which the halo originated), subsequent numbers for Rockstar cataloguetime.epochintsnapnumsnapshot number (from which the halo originated), same as in other halo cataloguestime.epochintnextcoprog_depthfirstiddepthFirstId of next coprogenitormeta.id.assoclongmainleaf_depthfirstiddepthFirstId of last leaf on the main branchmeta.id.assoclonglastprog_depthfirstiddepthFirstId of last progenitormeta.id.assoclongrs_klypinScale radius determined using Vmax and Mvir (see Rockstar paper)phys.size.radiusdoublemvir_allMass enclosed within the specified overdensity, including unbound particlesh-1.solMassphys.massdoublem200bMass enclosed within overdensity 200*rho_bh-1.solMassphys.massdoublem200cMass enclosed within overdensity 200*rho_crith-1.solMassphys.massdoublem500cMass enclosed within overdensity 500*rho_crith-1.solMassphys.massdoublem2500cMass enclosed within overdensity 2500*rho_crith-1.solMassphys.massdoublexoffOffset of density peak from average particle position, comovingh-1.kpcpos.distancedoublevoffOffset of density peak from average particle velocity, comovingkm.s-1phys.veloc;arith.diffdoublespin_bullockBullock spin parameter (J/(sqrt(2)*GMVR))doubleaxisratio_2_1ratio of second largest shape ellipsoid axes to largest shape ellipsoid axis;shapes determined by method in Allgood et al. (2006)doubleaxisratio_3_1ratio of smallest shape ellipsoid axes to largest shape ellipsoid axisdoubleaxis1_xcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_ycoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_zcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxisratio_2_1_500cratio of second largest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxisratio_3_1_500cratio of smallest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxis1_x_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_y_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_z_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoublet_uratio of kinetic to potential energiesphys.energy;arith.ratiodoublem_pe_behrooziPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublem_pe_diemerPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublemacchalo mass at accretion of the halo to its hosth-1.solMassphys.massdoublempeakpeak mass over accretion historyh-1.solMassphys.massdoublevaccVmax at accretionkm.s-1phys.velocdoublevpeakpeak Vmax over accretion historykm.s-1phys.velocdoublehalfmass_scalescale factor at which the most massive progenitor (mmp) reaches 0.5*Mpeaktime.epochdoubleaccrate_instinstantaneous halo mass accretion rateh-1.solMass.yr-1doubleaccrate_100myrhalo mass accretion rate averaged over passt 100 Myrh-1.solMass.yr-1doubleaccrate_1tdynhalo mass accretion rate averaged over past 1*virial dynamical timeh-1.solMass.yr-1doubleaccrate_2tdynhalo mass accretion rate averaged over past 2*virial dynamical timeh-1.solMass.yr-1doubleaccrate_mpeakgrowth rate of Mpeak, averaged from current z to z+0.5h-1.solMass.yr-1doublempeak_scalescale factor at which Mpeak was reachedtime.epochdoubleacc_scalescale factor at which satellites were accretedtime.epochdoublefirst_acc_scalescale factor at which current and former satellites first passed through a larger halotime.epochdoublefirst_acc_mvirMvir at First_Acc_scaleh-1.solMassphys.massdoublefirst_acc_vmaxVmax at First_Acc_scalekm.s-1phys.velocdoublevmax_mpeakhalo Vmax at the scale at which Mpeak was reachedkm.s-1phys.velocdoubleixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curveint

mdpl2.sagSAG catalog of semi-analytical galaxies, built using Rockstar catalogdbidunique database ID for this table, constructed from file number, snapnum and row in filemeta.id;meta.mainlongsnapnumsnapshot number (same as in Rockstar-catalogues)time.epochshortredshiftdoublerockstaridHaloID of dark matter halo as found in Rockstar merger tree (host halo)meta.idlongdepthfirstidlongforestidID of the corresponding forest halo, for extracting isolated merger forestsmeta.idlonggalaxystaticidID of the galaxy within the SAM. GalID = [Formation Snap]*1E14 + [Num Thread]*1E10 + [Gal Number]meta.idlonghosthaloidID of host DM halo to which this galaxy last belongedmeta.idlongmainhaloidID of main host dark matter halometa.idlonggalaxytypeFlag indicating the type of the galaxy: 0 = main halo central galaxy, 1 = satellite halo central galaxy, 2 = orphan galaxy)meta.idshorthalomassmass of the corresponding dark matter halo (M200c) in Rockstarh-1.solMassphys.massdoublevmaxhalo circular velocity in physical coordinates, frozen in orphan galaxieskm.s-1phys.veloc.rotatdoublevpeakhalo circular velocity at accretion time in physical coordinateskm.s-1phys.veloc.rotatdoubleconcentration_nfwhalo NFW concentration parameter, frozen in orphan galaxiesdoublexx-position, comovingh-1.Mpcpos.cartesian.xdoubleyy-position, comovingh-1.Mpcpos.cartesian.ydoublezz-position, comovingh-1.Mpcpos.cartesian.zdoublevxx-component of physical velocitykm.s-1phys.velocdoublevyy-component of physical velocitykm.s-1phys.velocdoublevzz-component of physical velocitykm.s-1phys.velocdoublemstarspheroidmass of stars in the spheroid/bulgeh-1.solMassphys.massdoublemstardiskmass of stars in the diskh-1.solMassphys.massdoublemcoldspheroidmass of gas in the spheroid/bulgeh-1.solMassphys.massdoublemcolddiskmass of gas in the diskh-1.solMassphys.massdoublemhothot gas massh-1.solMassphys.massdoublembhmass of central black holeh-1.solMassphys.massdoublesfrspheroidstar formation rate of the bulgeh-1.solMass.Gyr-1doublesfrstar formation rateh-1.solMass.Gyr-1doublemagstarsdssuSDSS Camera u Response Function, airmass = 1.3 (June 2001), rest-framedoublemagstarsdssgSDSS Camera g Response Function, airmass = 1.3 (June 2001), rest-framedoublemagstarsdssrSDSS Camera r Response Function, airmass = 1.3 (June 2001), rest-framedoublemagstarsdssiSDSS Camera i Response Function, airmass = 1.3 (June 2001), rest-framedoublemagstarsdsszSDSS Camera z Response Function, airmass = 1.3 (June 2001), rest-framedoublemzgasspheroidmass of metals in gas in the spheroid/bulgeh-1.solMassphys.massdoublemzgasdiskmass of metals in gas in the diskh-1.solMassphys.massdoublemzhothalomass of metals in hot gas in the diffuse halo/atmosphereh-1.solMassphys.massdoublemzstarspheroidmass of metals in stars in the spheroid/bulgeh-1.solMassphys.massdoublemzstardiskmass of metals in stars in the diskh-1.solMassphys.massdoublemeanagestarsmean age of stellar populationGyrdoubleninfilenumber of galaxy in the data file, inside the output group for current snapnumlongfilenumnumber of the file from which the data was uploadedintixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curvelong

mdpl2.sageSAGE catalog of semi-analytical galaxies, built using Rockstar catalogdbidunique database ID for this table, constructed from file number, snapnum and row in filemeta.id;meta.mainlongsnapnumsnapshot number, same as in Rockstar cataloguetime.epochshortredshiftredshift of the universe for this timesteptime.epochdoublerockstaridID in corresponding dark matter halo in Rockstar cataloguemeta.id;meta.mainlongdepthfirstiddepthFirstId of dark matter halo in corresponding Rockstar cataloguemeta.id;meta.mainlongforestidID of the merger forest in corresponding Rockstar cataloguemeta.idlonggalaxyidgalaxy identifiermeta.idlonghosthaloidsubhalo index from Rockstar output, same as rockstarIdlongmainhaloidcentral halo index from consistent-trees outputlonggalaxytypetype of the galaxy: 0=central, 1=satelliteshorthalomassremaining bound mass of a satelliteh-1.solMassphys.massdoublevmaxhalo circular velocity in physical coordinateskm.s-1phys.veloc.rotatdoublespinspin parameterdoublexcomoving x-positionh-1.Mpcpos.cartesian.xdoubleycomoving y-positionh-1.Mpcpos.cartesian.ydoublezcomoving z-positionh-1.Mpcpos.cartesian.zdoublevxx-component of peculiar physical velocitykm.s-1phys.velocdoublevyy-component of peculiar physical velocitykm.s-1phys.velocdoublevzz-component of peculiar physical velocitykm.s-1phys.velocdoublemstarspheroidstellar mass in spheroidh-1.solMassphys.massdoublemstardiskstellar mass in diskh-1.solMassphys.massdoublemcolddiskgas mass in diskh-1.solMassphys.massdoublemhotmass in hot haloh-1.solMassphys.massdoublembhmass of one black hole (same mass for all)h-1.solMassphys.massdoublesfrspheroidstar formation rate of the bulgeh-1.solMass.Gyr-1phys.SFRdoublesfrdiskstar formation rate in diskh-1.solMass.Gyr-1phys.SFRdoublesfrtotal star formation rateh-1.solMass.Gyr-1phys.SFRdoublemzgasdiskdoublemzhothalomass of metals in hot gas in the diffuse halo/atmosphereh-1.solMassphys.massdoublemzstarspheroidmass of metals in stars in the spheroid/bulgeh-1.solMassphys.massdoublemzstardiskmass of metals in stars in the diskh-1.solMassphys.massdoublemeanagestarsmean age of stellar populationGyrdoubleninfilenumber of galaxy in the data file, inside the output group for current snapnumlongfilenumnumber of the file from which the data was uploadedintixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curvelong

mdr1MDR1 is the first MultiDark simulation, performed in 2010. A detailed description is available in the paper [Prada et al. 2011](https://doi.org/10.1111/j.1365-2966.2012.21007.x). This simulation contains about 8.6 billion particles in a (1 Gpc/h)3 cube and thus has a larger volume than the Millennium Simulation, using the more up-to-date WMAP5 cosmology.mdr1.availhalosGives an overview on the snapshots, for which halo data are stored in the FOF or BDM tables.snapnumtime.epochshortredshifttime.epochdoublebdmvintbdmwintfofintfof1intfof2intfof3intfof4intfofcintfofsclintrockstarint

mdr1.bdmvBDM (Bound Density Maximum) catalogue for all available snapshots, calculated using the standard overdensity criterion with 360 * ρback (background density). <code>bdmid = ( snapnum*108 +(number in BDM catalogue) )</code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

mdr1.bdmvprofHalo profiles of the BDMV catalogue for all available snapshots, calculated using the standard overdensity criterion with 360*ρback (background density).bdmprofileidunique id for BDM radial profile binmeta.id;meta.mainlongbdmidunique id for bdm-halo, same as the <code>bdmid</code> in the corresponding halo cataloguemeta.idlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlongr_rviraverage radius of particles in bin normalized to virial radius of all (bound + unbound) particlesphys.size.radiusdoublerbinouter radius of binh-1.kpcphys.size.radiusdoublenpnumber of all particles inside radial binmeta.numberintmassmass of all particles within radius Rbin of binh-1.solMassphys.massdoubledensdifferential density inside radial bin calculated from all particles at R_Rvir, comoving volumeh3.solMass-1.kpc-3phys.densitydoublevcirccircular velocity sqrt(GM/r) of all particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoublevproprmsroot mean square proper velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoublevradaverage radial velocity of all particles inside radial binkm.s-1phys.velocdoublevradrmsroot mean square radial velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundr_rviraverage radius of particles in bin normalized to virial radius of only bound particlesphys.size.radius;arith.ratiodoubleboundnpnumber of only bound particles inside radial binmeta.numberintboundmassmass of bound particles within radius Rbin of binh-1.solMassphys.massdoublebounddensdifferential density inside radial bin calculated from bound particles only at R_Rvir; comoving volumeh3.solMass-1.kpc-3phys.densitydoubleboundvcirccircular velocity sqrt(GM/r) of bound particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoubleboundvcircrmsroot mean square circular velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundvradaverage radial velocity of bound particles inside radial binkm.s-1phys.velocdoubleboundvradrmsroot mean square radial velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondouble

mdr1.bdmwBDM (Bound Density Maximum) catalogue for all available snapshots, calculated using the standard overdensity criterion with 200 * ρback (background density). <code>bdmid = ( snapnum*108 +(number in BDM catalogue) )</code>bdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagindex (flag) indicating if substructure or host; -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

mdr1.bdmwmfreqGalaxy cluster catalogue for distinct halos from the BDMW catalogue with a total mass (Mtot) above 1014 Msun/h, only for snapshots corresponding to the redshift values z = 0, 0.05, 0.1, 0.16, 0.18, 0.2, 0.27, 0.32, 0.37, 0.4, 0.47, 0.53, 0.61, 0.69, 0.78, 0.89 and 1.galclusteridunique id for the galaxy clustermeta.id;meta.mainlongbdmidbdmId of BDMW tablemeta.id;meta.mainlongsnapnumnumber of snapshot (same as in halo catalogues)time.epochshortnincatnumber of galaxy cluster in original data filemeta.idintx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublem500halo mass, defined with 500 * critical density calculated from <code>BDMW</code> <code>Mtot</code> with <a href="http://adsabs.harvard.edu/abs/2003ApJ...584..702H">Hu & Kravtsov (2003)</a> methodh-1.solMassphys.massdoubler500radius for 500 * critical density boundaryh-1.Mpcphys.size.radiusdoubletintra-cluster medium X-ray temperature (kBT) from <a href="http://adsabs.harvard.edu/abs/2010MNRAS.406.1773M">Mantz et al. (2010)</a> Tci - M500 relationkeVphys.temperaturedoublestateflagflag for cluster dynamical state: 0 = non-cool core cluster, 1 = cool-core clustermeta.codeshortrho0intra-cluster medium central gas density (at R = 0)g.cm-3.h(1/2)phys.densitydoublelxX-ray thermal bremsstrahlung luminosity within <code>R500</code>h-2.erg.s-1phys.luminosity;em.X-raydoubleyxYX = Mgas * kBT parameter of <a href="http://adsabs.harvard.edu/abs/2006ApJ...650..128K">Kravtsov et al. (2006)</a> within <code>R500</code>, related to the total thermal energy of the ICMh(-2.5).solMass.keVphys.mass;phys.temperature;arith.factordoubleszintegrated thermal Sunyaev-Zel"dovich Compton-Y parameter (as equation 3 of <a href="http://adsabs.harvard.edu/cgi-bin/bib_query?arXiv:1109.3709">Battaglia et al. 2011</a>) within <code>R500</code>h(-2.5).Mpc2phys.density;phys.temperature;arith.factordoubleradioflagflag for radio-loud ( = 1; 10%) and radio-quiet ( = 0; 90%) clustersmeta.codeshortxcrratio of cosmic-ray to thermal pressure volume avarage (<PCR/Pth>) within <code>R500</code>phys.pressure;arith.ratiodoubleradiomhzsynchrotron radio halo luminosity at 120 MHz within <code>R500</code>h-2.erg.s-1.Hz-1phys.luminosity;em.radiodoubleradioghzsynchrotron radio halo luminosity at 1.4 GHz within <code>R500</code>h-2.erg.s-1.Hz-1phys.luminosity;em.radiodoublegammamevgamma-ray luminosity above 100 MeV within <code>R500</code>h-2.photon.s-1phys.luminosity;em.gammadoublegammagevgamma-ray luminosity above 100 GeV within <code>R500</code>h-2.photon.s-1phys.luminosity;em.gammadoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

mdr1.bdmwprofHalo profiles of the BDMW catalogue for all available snapshots, calculated using the standard overdensity criterion with 200*ρback (background density).bdmprofileidunique id for BDM radial profile binmeta.id;meta.mainlongbdmidunique id for bdm-halo, same as the <code>bdmid</code> in the corresponding halo cataloguemeta.idlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlongr_rviraverage radius of particles in bin normalized to virial radius of all (bound + unbound) particlesphys.size.radiusdoublerbinouter radius of binh-1.kpcphys.size.radiusdoublenpnumber of all particles inside radial binmeta.numberintmassmass of all particles within radius Rbin of binh-1.solMassphys.massdoubledensdifferential density inside radial bin calculated from all particles at R_Rvir, comoving volumeh3.solMass-1.kpc-3phys.densitydoublevcirccircular velocity sqrt(GM/r) of all particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoublevproprmsroot mean square proper velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoublevradaverage radial velocity of all particles inside radial binkm.s-1phys.velocdoublevradrmsroot mean square radial velocity of all particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundr_rviraverage radius of particles in bin normalized to virial radius of only bound particlesphys.size.radius;arith.ratiodoubleboundnpnumber of only bound particles inside radial binmeta.numberintboundmassmass of bound particles within radius Rbin of binh-1.solMassphys.massdoublebounddensdifferential density inside radial bin calculated from bound particles only at R_Rvir; comoving volumeh3.solMass-1.kpc-3phys.densitydoubleboundvcirccircular velocity sqrt(GM/r) of bound particles, where M is the mass inside the radius Rbinkm.s-1phys.velocdoubleboundvcircrmsroot mean square circular velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondoubleboundvradaverage radial velocity of bound particles inside radial binkm.s-1phys.velocdoubleboundvradrmsroot mean square radial velocity of bound particles inside radial binkm.s-1phys.veloc.dispersiondouble

mdr1.dens1024_z0Density field for redshift 0, for 10243 grid cellswebidmeta.idlongixpos.cartesian.xintiypos.cartesian.yintizpos.cartesian.zintphkeyintdensphys.density;arith.ratiodouble

mdr1.dens512_z0Density field for redshift 0, for 5123 grid cellswebidmeta.idlongixpos.cartesian.xintiypos.cartesian.yintizpos.cartesian.zintphkeyintdensphys.density;arith.ratiodouble

mdr1.fofMain Friends-of-Friends catalogue for all available snapshots, level 0 (relative linking length 0.17); <code>fofid = (snapnum * 10 + level)*108 +(rank in FOF-file)</code>fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fof1Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 4 (linking length 0.010625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fof2Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 4 (linking length 0.010625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fof3Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 4 (linking length 0.010625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fof4Friends-of-Friends catalogue for all available snapshots, same as FOF-table, but for smaller (relative) linking lengths, levels 1 (linking length 0.085) to 4 (linking length 0.010625). Thus these tables contain substructures of the FOF groups.fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fofmtreeMerger trees for top level FOF groups (level=0) with > 2 * 1012 Msun/h from redshift 0. Substructures are not taken into account.foftreeidunique id for FOF-group = treeRootId + rank in merger tree (depth first order)meta.id;meta.mainlongfofidcorresponding id of this FOF group in the FOF tablemeta.idlongtreesnapnumsubsequent number of snapshot used for creating the merger tree, not the same number as in FOF tabletime.epochshortdescendantidfofTreeId for direct descendant (to which the FOF group will merge in the next timestep)meta.id.assoclonglastprogidfofTreeId of last progenitor in depth-first ordermeta.id.assoclongmainleafidfofTreeId of last leaf on main branch, which is defined by the most massive progenitorsmeta.id.assoclongtreerootidroot in merger treemeta.id.assoclongxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxcomoving velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevycomoving velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzcomoving velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF groupmeta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fofsclFOF superclusters; contains Friends-of-Friends catalogues for redshift 0, for 7 different (relative) linking lengths between 0.35 (sclevel 0) and 0.17 (sclevel 6)), i.e. much larger objects (superclusters) than in the FOF table. It also contains identifiers for building substructure treesfofsubidunique id for FOF-group, = treeRootId + rank in substructure tree (depth first order)meta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortsclevellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idinthostidfofSubId of the direct hostmeta.id.assoclonglastsubidfofSubId of last subhalo in depth-first order substructure treemeta.id.assoclongmainleafidfofSubId of *last* leaf on main branch of substructure tree; "main branch" is defined as the branch along the most massive substructuresmeta.id.assoclongtreerootidroot of the substructure tree (group with largest linking length)meta.id.assoclongnloosenumber of particles not associated with any substructure of this groupmeta.numberintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF groupmeta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background densityphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.fofsubFOF substructure tree connecting the FOF – FOF4 catalogues at <code>snapnum=85</code> (z=0).fofsubidunique id for FOF-group, = treeRootId + rank in substructure tree (depth first order)meta.id;meta.mainlongfofidfofId in corresponding FOF-table (FOF - FOF4)time.epochlonglinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idinthostidfofSubId of the direct hostmeta.id.assoclonglastsubidfofSubId of last subhalo in depth-first order substructure treemeta.id.assoclongmainleafidfofSubId of *last* leaf on main branch of substructure tree; "main branch" is defined as the branch along the most massive substructuresmeta.id.assoclongtreerootidroot of the substructure tree (group with largest linking length)meta.id.assoclongnloosenumber of particles not associated with any substructure of this groupmeta.numberintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF groupmeta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

mdr1.linklengthOverview on levels for FOF groups and corresponding linking lengths (for FOF, FOF1 – FOF4 tables)linking_levelnumber of level as used for database idsmeta.mainshortlinklengthlinking length in Mpc/hh-1.Mpcpos.distancedoublelinklength_relrelative linking lengthpos.distance;arith.ratiodoublelevelinfilelevel number as used in the original file namesmeta.mainint

mdr1.linklengthsclOverview on sclevels for superclusters and corresponding linking lengths (for FOFScl table)sclevelnumber of level as used for database idsshortlinklengthlinking length in Mpc/hh-1.Mpcpos.distancedoublelinklength_relrelative linking lengthpos.distance;arith.ratiodoublelevelinfilelevel number as used in the original file namesmeta.mainint

mdr1.redshiftsOverview on snapshot numbers (snapnum) and corresponding redshiftssnapnumsnapshot numbertime.epochintaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdouble

mdr1.rockstarConsistent halo catalogue with merger treesdbidunique database id for the halometa.id;meta.mainlongrockstaridunique id for the halo, same as in Rockstar cataloguemeta.id;meta.mainlongscalescale factor, same as aexp in Redshifts-tabletime.epochdoubledesc_scalescale factor of the descendant halo, if there is onetime.epochdoubledescidrockstarId of the descendantmeta.id.assoclongnprognumber of progenitorsmeta.numberintpidrockstarId of least massive host halo, -1 if it is a distinct halometa.id.assoclongupidrockstarId of most massive host halo, only different from pid, if halo lies within two or more larger halosmeta.id.assoclongdesc_pidpId of the descendant halo, if applicablemeta.id.assoclongphantomflag for phantom halos, non-zero if the halo is interpolated across timestepsmeta.codeshortmvir_samhalo mass, smoothed across accretion history; always greater than the sum of halo masses of contributing progenitors; only for use with selected semi-analytic modelsh-1.solMassphys.massdoublemvirhalo mass (within virial radius)h-1.solMassphys.massdoublervirhalo radius (comoving)h-1.kpcphys.size.radiusdoublersscale radius (comoving)h-1.kpcphys.size.radiusdoublevrmsvelocity dispersion (physical)km.s-1phys.veloc.dispersiondoublemmpflag indicating if the halo is the most massive progenitor or notshortlastmm_scalescale factor of the last major merger (mass ratio > 0.3)doublevmaxmaximum circular velocity (physical)km.s-1phys.velocdoublexhalo position, comovingh-1.Mpcpos.cartesian.xdoubleyhalo position, comovingh-1.Mpcpos.cartesian.ydoublezhalo position, comovingh-1.Mpcpos.cartesian.zdoublevxhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.xdoublevyhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.ydoublevzhalo velocity, physicalkm.s-1phys.veloc;pos.cartesian.zdoubleangmom_xhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoublespinhalo spin parameterdoublebreadthfirstidId for breadth-first ordering of halos within a treemeta.idlongdepthfirstidId for depth-first ordering of halos within a treemeta.idlongtreerootidrockstarId of the halo at the last timestep in the treemeta.id.assoclongforestidrockstarId of forest to which the halo with the given treeRootId belongsmeta.id.assoclongorighaloidoriginal halo Id from halo findermeta.id.crosslongrockstar_snapnumsnapshot number (from which the halo originated), subsequent numbers for Rockstar cataloguetime.epochintsnapnumsnapshot number (from which the halo originated), same as in other halo cataloguestime.epochintnextcoprog_depthfirstiddepthFirstId of next coprogenitormeta.id.assoclongmainleaf_depthfirstiddepthFirstId of last leaf on the main branch, determined additionally using the database for convenience. If this value is "-1", this value was not yet updated.meta.id.assoclonglastprog_depthfirstiddepthFirstId of last progenitormeta.id.assoclongrs_klypinScale radius determined using Vmax and Mvir (see Rockstar paper)phys.size.radiusdoublemvir_allphys.massdoublem200bMass enclosed within overdensity 200*rho_bh-1.solMassphys.massdoublem200cMass enclosed within overdensity 200*rho_crith-1.solMassphys.massdoublem500cMass enclosed within overdensity 500*rho_crith-1.solMassphys.massdoublem2500cMass enclosed within overdensity 2500*rho_crith-1.solMassphys.massdoublexoffOffset of density peak from average particle position, comovingh-1.kpcpos.distancedoublevoffOffset of density peak from average particle velocity, comovingkm.s-1phys.veloc;arith.diffdoublespin_bullockBullock spin parameter (J/(sqrt(2)*GMVR))doubleaxisratio_2_1ratio of second largest shape ellipsoid axes to largest shape ellipsoid axis;shapes determined by method in Allgood et al. (2006)doubleaxisratio_3_1ratio of smallest shape ellipsoid axes to largest shape ellipsoid axisdoubleaxis1_xcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_ycoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_zcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxisratio_2_1_500cratio of second largest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxisratio_3_1_500cratio of smallest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxis1_x_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_y_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_z_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoublet_uratio of kinetic to potential energiesphys.energy;arith.ratiodoublem_pe_behrooziPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublem_pe_diemerPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublemacchalo mass at accretion of the halo to its hosth-1.solMassphys.massdoublempeakpeak mass over accretion historyh-1.solMassphys.massdoublevaccVmax at accretionkm.s-1phys.velocdoublevpeakpeak Vmax over accretion historykm.s-1phys.velocdoublehalfmass_scalescale factor at which the most massive progenitor (mmp) reaches 0.5*Mpeaktime.epochdoubleaccrate_instinstantaneous halo mass accretion rateh-1.solMass.yr-1doubleaccrate_100myrhalo mass accretion rate averaged over passt 100 Myrh-1.solMass.yr-1doubleaccrate_1tdynhalo mass accretion rate averaged over past 1*virial dynamical timeh-1.solMass.yr-1doubleaccrate_2tdynhalo mass accretion rate averaged over past 2*virial dynamical timeh-1.solMass.yr-1doubleaccrate_mpeakgrowth rate of Mpeak, averaged from current z to z+0.5h-1.solMass.yr-1doublempeak_scalescale factor at which Mpeak was reachedtime.epochdoubleacc_scalescale factor at which satellites were accretedtime.epochdoublefirst_acc_scalescale factor at which current and former satellites first passed through a larger halotime.epochdoublefirst_acc_mvirMvir at First_Acc_scaleh-1.solMassphys.massdoublefirst_acc_vmaxVmax at First_Acc_scalekm.s-1phys.velocdoublevmax_mpeakhalo Vmax at the scale at which Mpeak was reachedkm.s-1phys.velocdoubleixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curveint

mdr1.treesnapnumsMaps between snapshot numbers used in the FOF merger trees for MDR1 and the “usual” snapshot numbers.treesnapnumsnapshot number in FOF merger treetime.epochintsnapnumsnapshot number (in full snapshot sample)time.epochintaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdouble

mdr1.tweb512Eigenvectors and eigenvalues of the gravitational tidal tensor, for a 5123 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

mdr1.vweb1024Eigenvectors and eigenvalues of the velocity shear tensor, for a 10243 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

mdr1.vweb512Eigenvectors and eigenvalues of the velocity shear tensor, for a 5123 gridwebidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyinteigen11. eigenvaluedoubleeigen22. eigenvaluedoubleeigen33. eigenvaluedoubleev1_x1. eigenvector, x-componentdoubleev1_y1. eigenvector, y-componentdoubleev1_z1. eigenvector, z-componentdoubleev2_x2. eigenvector, x-componentdoubleev2_y2. eigenvector, y-componentdoubleev2_z2. eigenvector, z-componentdoubleev3_x3. eigenvector, x-componentdoubleev3_y3. eigenvector, y-componentdoubleev3_z3. eigenvector, z-componentdouble

smdplThe Small MultiDark Planck simulation belongs to the series of MultiDark simulations with Planck cosmology. Its simulation box has a side length of only 400 Mpc/h, less than half of the MDPL-size. With 38403 particles inside this small box it achieves a mass resolution of 108 Msun/h per dark matter particle. Some more details for this simulation are described in [Klypin et al. 2014](https://ui.adsabs.harvard.edu/link_gateway/2016MNRAS.457.4340K/doi:10.1093/mnras/stw248).smdpl.availhalosGives an overview on the snapshots, for which halo data are stored in the halo catalogues tables. In particular, it gives the number of halos/FOF groups for each snapshot.snapnumtime.epochshortredshifttime.epochdoublerockstarintfofintfof1intfof2intfof3intfof4intfof5int

smdpl.bdmvBDM halo catalogue for all available snapshots, using the standard overdensity criterion with 360*background densitybdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagflag indicating if substructure or host: -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

smdpl.bdmwBDM halo catalogue for all available snapshots, using 200*critical density as overdensity criterionbdmidunique id for bdm-halometa.id;meta.mainlongsnapnumnumber of snapshottime.epochshortnincatnumber of halo in BDM catalogue file (= "Nhalo")meta.idlonghostflagflag indicating if substructure or host: -1 for distinct halo, bdmId of parent halo for subhalosmeta.idlongx(comoving) position, x-componenth-1.Mpcpos.cartesian.xdoubley(comoving) position, y-componenth-1.Mpcpos.cartesian.ydoublez(comoving) position, z-componenth-1.Mpcpos.cartesian.zdoublevx(peculiar) velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevy(peculiar) velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevz(peculiar) velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles in halometa.numberintmvirhalo mass - mass of bound particles within Rvirh-1.solMassphys.massdoublemtothalo mass - mass of all particles within Rvirh-1.solMassphys.massdoublervirvirial radiush-1.Mpcphys.size.radiusdoublevrmsroot mean square proper velocities of bound dark matter particleskm.s-1phys.veloc.dispersiondoublevcirmaximum circular velocity in the halokm.s-1phys.velocdoubleconcconcentration of the halo as found from <code>Vcirc / sqrt(G Mvir / Rvir)</code> assuming a NFW profilephys.size;arith.ratiodoublexoffoffset parameterphys.size;arith.ratiodoublevirialratiovirial ratio = 2 K/Epot - 1phys.energy;arith.ratiodoublespinspin parameterdoublerrmsroot mean square distance of halo particlesh-1.Mpcphys.size.radiusdoubleaxisratio_2_1ratio of intermediate to major axis (as estimated in a spherical region via the modified inertia tensor)doubleaxisratio_3_1ratio of minor to major axisdoubleaxis1_xx-component of major axisdoubleaxis1_yy-component of major axisdoubleaxis1_zz-component of major axisdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert-key, i.e. index along the Peano-Hilbert curveint

smdpl.dens512_z0Density field on a 512^3 grid, for redshift z=0webidunique id for the entry in the database table, corresponds to the line number in the original file, starting with 0 at first linemeta.idlongixspatial grid index, x-direction; <code>ix= floor(x/nx)</code>; multiply/divide by factors of 2 when comparing with a finer/coarser gridpos.cartesian.xintiyspatial grid index, y-direction; <code>iy = floor(y/ny)</code>pos.cartesian.yintizspatial grid index, z-direction; <code>iz = floor(z/nz)</code>pos.cartesian.zintphkeyPeano-Hilbert key; multiply/divide by factors of 8 when comparing with a finer/coarser gridintdensoverdensity, <code> dens = (ρ - ρb)/ρb</code> <code>ρb</code> = mean background density of matterphys.density;arith.ratiodouble

smdpl.fofFriends-of-Friends halo catalogue, level 0 with relative linking length 0.2fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.fof1Friends-of-Friends halo catalogue, level 1 with relative linking length 0.1fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.fof2Friends-of-Friends halo catalogue, level 2 with relative linking length 0.05fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.fof3Friends-of-Friends halo catalogue, level 3 with relative linking length 0.025fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.fof4Friends-of-Friends halo catalogue, level 4 with relative linking length 0.0125fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.fof5Friends-of-Friends halo catalogue, level 5 with relative linking length 0.00625fofidunique id for FOF-groupmeta.id;meta.mainlongsnapnumnumber of snapshot; look into redshifts-table to find the corresponding redshifttime.epochshortlinking_levellevel of substructure, indicates the different linking lengthsshortninfileline number of FOF-group in original catalogue file (= rank in file)meta.idintxcomoving position, x-componenth-1.Mpcpos.cartesian.xdoubleycomoving position, y-componenth-1.Mpcpos.cartesian.ydoublezcomoving position, z-componenth-1.Mpcpos.cartesian.zdoublevxpeculiar velocity, x-componentkm.s-1phys.veloc;pos.cartesian.xdoublevypeculiar velocity, y-componentkm.s-1phys.veloc;pos.cartesian.ydoublevzpeculiar velocity, z-componentkm.s-1phys.veloc;pos.cartesian.zdoublenpnumber of particles inside the FOF group ("halo")meta.numberintmasstotal mass of the FOF grouph-1.solMassphys.massdoubleradius"radius" of the FOF group, if it were a sphere, computed based on the volumeh-1.Mpcphys.size.radiusdoubledispdispersionh-1.Mpcphys.dispMeasuredoubledisp_vvelocity dispersionkm.s-1phys.veloc.dispersiondoubledeltaoverdensity (mass/volume) in terms of mean background density rho_bphys.density;arith.ratiodoublespinspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)doubleangmom_xangular momentum, x-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yangular momentum, y-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zangular momentum, z-componenth-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoubleangmomabsolute value of angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentumdoubleaxis1major axis of the ellipsoidal shape, not normalizeddoubleaxis2intermediate axis of the ellipsoidal shape, not normalizeddoubleaxis3minor axis of the ellipsoidal shape, not normalizeddoubleaxis1_xdirection of major axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis1_ydirection of major axis, y-componentdoubleaxis1_zdirection of major axis, z-componentdoubleaxis2_xdirection of intermediate axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis2_ydirection of intermediate axis, y-componentdoubleaxis2_zdirection of intermediate axis, z-componentdoubleaxis3_xdirection of minor axis, unit eigenvector of the inertia tensor, x-componentdoubleaxis3_ydirection of minor axis, y-componentdoubleaxis3_zdirection of minor axis, z-componentdoubleixspatial index, x-directionpos.cartesian.xintiyspatial index, y-directionpos.cartesian.yintizspatial index, z-directionpos.cartesian.zintphkeyPeano-Hilbert keyint

smdpl.linklengthLinking lengths for each FOF levellinking_levelmeta.mainshortlinklengthdoublelinklength_reldoublelevelinfilemeta.mainint

smdpl.redshiftsRedshifts for snapshot numberssnapnumsnapshot numbertime.epochshortaexpexpansion factor of the universetime.epochdoublezredcorresponding redshifttime.epochdoubleorig_snapnumsnapshot number of original simulation filestime.epochshort

smdpl.rockstarRockstar halo catalogue with consistent merger treesdbidunique database id for the halometa.id;meta.mainlongrockstaridunique id for the halo, same as in Rockstar cataloguemeta.id;meta.mainlongscalescale factor, same as aexp in Redshifts-tabletime.epochdoubledesc_scalescale factor of the descendant halo, if there is onetime.epochdoubledescidrockstarId of the descendantmeta.id.assoclongnprognumber of progenitorsmeta.numberintpidrockstarId of least massive host halo, -1 if it is a distinct halometa.id.assoclongupidrockstarId of most massive host halo, only different from pid, if halo lies within two or more larger halosmeta.id.assoclongdesc_pidpId of the descendant halo, if applicablemeta.id.assoclongphantomflag for phantom halos, non-zero if the halo is interpolated across timestepsmeta.codeshortmvir_samhalo mass, smoothed across accretion history; always greater than the sum of halo masses of contributing progenitors; only for use with selected semi-analytic modelsh-1.solMassphys.massdoublemvirhalo mass (within virial radius)h-1.solMassphys.massdoublervirhalo radius (comoving)h-1.kpcphys.size.radiusdoublersscale radius (comoving)h-1.kpcphys.size.radiusdoublevrmsvelocity dispersion (physical)km.s-1phys.veloc.dispersiondoublemmpflag indicating if the halo is the most massive progenitor or notshortlastmm_scalescale factor of the last major merger (mass ratio > 0.3)doublevmaxmaximum circular velocity (physical)km.s-1phys.velocdoublexhalo position, comovingh-1.Mpcpos.cartesian.xdoubleyhalo position, comovingh-1.Mpcpos.cartesian.ydoublezhalo position, comovingh-1.Mpcpos.cartesian.zdoublevxhalo velocity, physical, just "a dx/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.xdoublevyhalo velocity, physical, just "a dy/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.ydoublevzhalo velocity, physical, just "a dz/dt", i.e. no Hubble flowkm.s-1phys.veloc;pos.cartesian.zdoubleangmom_xhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.xdoubleangmom_yhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.ydoubleangmom_zhalo angular momentumh-2.solMass.Mpc.km.s-1phys.angMomentum;pos.cartesian.zdoublespinhalo spin parameterdoublebreadthfirstidId for breadth-first ordering of halos within a treemeta.idlongdepthfirstidId for depth-first ordering of halos within a treemeta.idlongtreerootidrockstarId of the halo at the last timestep in the treemeta.id.assoclongforestidrockstarId of forest to which the halo with the given treeRootId belongsmeta.id.assoclongorighaloidoriginal halo Id from halo findermeta.id.crosslongrockstar_snapnumsnapshot number (from which the halo originated), subsequent numbers for Rockstar cataloguetime.epochintsnapnumsnapshot number (from which the halo originated), same as in other halo cataloguestime.epochintnextcoprog_depthfirstiddepthFirstId of next coprogenitormeta.id.assoclongmainleaf_depthfirstiddepthFirstId of last leaf on the main branchmeta.id.assoclonglastprog_depthfirstiddepthFirstId of last progenitormeta.id.assoclongrs_klypinScale radius determined using Vmax and Mvir (see Rockstar paper)phys.size.radiusdoublemvir_allMass enclosed within the specified overdensity, including unbound particlesh-1.solMassphys.massdoublem200bMass enclosed within overdensity 200*rho_bh-1.solMassphys.massdoublem200cMass enclosed within overdensity 200*rho_crith-1.solMassphys.massdoublem500cMass enclosed within overdensity 500*rho_crith-1.solMassphys.massdoublem2500cMass enclosed within overdensity 2500*rho_crith-1.solMassphys.massdoublexoffOffset of density peak from average particle position, comovingh-1.kpcpos.distancedoublevoffOffset of density peak from average particle velocity, comovingkm.s-1phys.veloc;arith.diffdoublespin_bullockBullock spin parameter (J/(sqrt(2)*GMVR))doubleaxisratio_2_1ratio of second largest shape ellipsoid axes to largest shape ellipsoid axis;shapes determined by method in Allgood et al. (2006)doubleaxisratio_3_1ratio of smallest shape ellipsoid axes to largest shape ellipsoid axisdoubleaxis1_xcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_ycoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxis1_zcoordinate of largest shape ellipsoid axis, comovingh-1.kpcdoubleaxisratio_2_1_500cratio of second largest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxisratio_3_1_500cratio of smallest shape ellipsoid axes to largest shape ellipsoid axis, for particles within overdensity 500*rho_critdoubleaxis1_x_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_y_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoubleaxis1_z_500ccoordinate of largest shape ellipsoid axis, for particles within overdensity 500*rho_crit, comovingh-1.kpcdoublet_uratio of kinetic to potential energiesphys.energy;arith.ratiodoublem_pe_behrooziPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublem_pe_diemerPseudo-evolution corrected masses (very experimental)h-1.solMassphys.massdoublemacchalo mass at accretion of the halo to its hosth-1.solMassphys.massdoublempeakpeak mass over accretion historyh-1.solMassphys.massdoublevaccVmax at accretionkm.s-1phys.velocdoublevpeakpeak Vmax over accretion historykm.s-1phys.velocdoublehalfmass_scalescale factor at which the most massive progenitor (mmp) reaches 0.5*Mpeaktime.epochdoubleaccrate_instinstantaneous halo mass accretion rateh-1.solMass.yr-1doubleaccrate_100myrhalo mass accretion rate averaged over passt 100 Myrh-1.solMass.yr-1doubleaccrate_1tdynhalo mass accretion rate averaged over past 1*virial dynamical timeh-1.solMass.yr-1doubleaccrate_2tdynhalo mass accretion rate averaged over past 2*virial dynamical timeh-1.solMass.yr-1doubleaccrate_mpeakgrowth rate of Mpeak, averaged from current z to z+0.5h-1.solMass.yr-1doublempeak_scalescale factor at which Mpeak was reachedtime.epochdoubleacc_scalescale factor at which satellites were accretedtime.epochdoublefirst_acc_scalescale factor at which current and former satellites first passed through a larger halotime.epochdoublefirst_acc_mvirMvir at First_Acc_scaleh-1.solMassphys.massdoublefirst_acc_vmaxVmax at First_Acc_scalekm.s-1phys.velocdoublevmax_mpeakhalo Vmax at the scale at which Mpeak was reachedkm.s-1phys.velocdoubleixspatial grid index, x-directionpos.cartesian.xintiyspatial grid index, y-directionpos.cartesian.yintizspatial grid index, z-directionpos.cartesian.zintphkeyPeano-Hilbert key index of space-filling curveint

tap_schemaThe TAP SCHEMA of the servicetap_schema.schemasThe table of schemas for the serviceidInternal ID of the schemaintschema_nameThe name of the schemacharutypeThe IVOA UTYPE of the schemachardescriptionThe description of the schemachar

tap_schema.tablesThe table of tables for the serviceidInternal ID of the tableintschema_nameThe name of the schema of the tablechartable_nameThe name of the tablechartable_typeThe type of the table (table or view)charutypeThe IVOA UTYPE of the tablechardescriptionThe description of the tablechartable_indexThe ordering index of the tableintschema_idThe foreign key to the schema of this tableint

tap_schema.columnsThe table of columns of the serviceidInternal ID of the columninttable_nameThe name of the table of the columncharcolumn_nameThe name of the columnchardatatypeThe datatype of the columnchararraysizeThe size of the column for variable length datatypesint"size"The size of the column for variable length datatypes (legacy)intdescriptionThe description of the columncharutypeThe IVOA UTYPE of the columncharunitThe Unit of the columncharucdThe IVOA UCD of the columncharprincipalDesignates if the column is considered a core part of the serviceintindexedDesignates if the column is indexedintstdDesignates if the column is defined by some standardintcolumn_indexThe ordering index of the columninttable_idThe foreign key to the table of this columnint

tap_schema.datalinkThe table of datalinks for the servicedatalink_idInternal datalink identifiermeta.id;meta.mainintIDInput identifier.meta.id;meta.maincharaccess_urlLink to data or service.meta.ref.urlcharservice_defReference to a service descriptor resource.meta.refcharerror_messageError if an access_url cannot be created.meta.code.errorchardescriptionHuman-readable text describing this link.meta.notecharsemanticsTerm from a controlled vocabulary describing the link.meta.codecharcontent_typeMime-type of the content the link returns.meta.code.mimecharcontent_lengthSize of the download the link returns.phys.size;meta.filelong

tap_schema.key_columnsThe table of foreign keys for the serviceidInternal ID of the key columnsintkey_idIdentifier linking for the corresponding entry in the table keyscharfrom_columnName of the column in the source tablechartarget_columnName of the corresponding column in the target tablechar

tap_schema.keysThe table of foreign key relations between tableskey_idUnique identifier of the foreign key relationship; used to join with the key_columns tablecharfrom_tableFully qualified name of the table containing the foreign key (i.e. schema.table)chartarget_tableFully qualified name of the referenced (target) tablechardescriptionDescription of the relationshipcharutypeOptional data model identifier for the relationshipchar