BolshoiP – FOF5

Description

The table data can be extracted using the query interface.

General information on FOF tables is also available at Tables – FOF.

Please cite this data set using the unique digital object identifier doi:10.17876/cosmosim/bolshoip/008.

Columns

ColumnTypeUCDUnitDescription
fofIdbigintmeta.id
meta.main
unique id for FOF-group
snapnumsmallinttime.epochnumber of snapshot; look into redshifts-table to find the corresponding redshift
levelsmallintlevel of substructure, indicates the different linking lengths
NInFileintmeta.idline number of FOF-group in original catalogue file (= rank in file)
xfloatpos.cartesian.xh-1.Mpccomoving position, x-component
yfloatpos.cartesian.yh-1.Mpccomoving position, y-component
zfloatpos.cartesian.zh-1.Mpccomoving position, z-component
vxfloatphys.veloc
pos.cartesian.x
km/speculiar velocity, x-component
vyfloatphys.veloc
pos.cartesian.y
km/speculiar velocity, y-component
vzfloatphys.veloc
pos.cartesian.z
km/speculiar velocity, z-component
npintmeta.numbernumber of particles inside the FOF group ('halo')
massfloatphys.massh-1.solMasstotal mass of the FOF group
sizefloatphys.size.radiush-1.Mpc'radius' of the FOF group, if it were a sphere, computed based on the volume
dispfloatphys.dispMeasureh-1.Mpcdispersion
disp_vfloatphys.veloc.dispersionkm/svelocity dispersion
deltafloatphys.density
arith.ratio
overdensity (mass/volume) in terms of mean background density rho_b
spinfloatspin parameter (Gottlöber & Yepes 2007, ApJ 664, 117)
angMom_xfloatphys.angMomentum
pos.cartesian.x
h-2.solMass.Mpc.km/sangular momentum, x-component
angMom_yfloatphys.angMomentum
pos.cartesian.y
h-2.solMass.Mpc.km/sangular momentum, y-component
angMom_zfloatphys.angMomentum
pos.cartesian.z
h-2.solMass.Mpc.km/sangular momentum, z-component
angMomfloatphys.angMomentumh-2.solMass.Mpc.km/sabsolute value of angular momentum
axis1floatmajor axis of the ellipsoidal shape, not normalized
axis2floatintermediate axis of the ellipsoidal shape, not normalized
axis3floatminor axis of the ellipsoidal shape, not normalized
axis1_xfloatdirection of major axis, unit eigenvector of the inertia tensor, x-component
axis1_yfloatdirection of major axis, y-component
axis1_zfloatdirection of major axis, z-component
axis2_xfloatdirection of intermediate axis, unit eigenvector of the inertia tensor, x-component
axis2_yfloatdirection of intermediate axis, y-component
axis2_zfloatdirection of intermediate axis, z-component
axis3_xfloatdirection of minor axis, unit eigenvector of the inertia tensor, x-component
axis3_yfloatdirection of minor axis, y-component
axis3_zfloatdirection of minor axis, z-component
ixintpos.cartesian.xspatial index, x-direction
iyintpos.cartesian.yspatial index, y-direction
izintpos.cartesian.zspatial index, z-direction
phkeyintPeano-Hilbert key

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