Galacticus (mdpl2.galacticus)

The table has 12132013056 rows, 59 columns.

Description

Galacticus catalog of semi-analytical galaxies, built using the Rockstar catalog

Note: If your're querying the mdpl2.galacticus table, there are two types of galaxies. Socalled orphan galaxies (galaxytype=2) which have lost their DM halo, and thus have no longer valid coordinates, as the catalogues are DM-only.

Attribution

In order to properly acknowledge our efforts, we request the following paragraph to be included in the "Acknowledgements" section of any publication which makes use of the simulation data above via the CosmoSim or MultiDark database:

Acknowledgements – Database

The CosmoSim database used in this paper is a service by the Leibniz-Institute for Astrophysics Potsdam (AIP). The MultiDark database was developed in cooperation with the Spanish MultiDark Consolider Project CSD2009-00064.

Acknowledgements – Simulations

The authors gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) and the Partnership for Advanced Supercomputing in Europe (PRACE, www.prace-ri.eu) for funding the MultiDark simulation project by providing computing time on the GCS Supercomputer SuperMUC at Leibniz Supercomputing Centre (LRZ, www.lrz.de). The Bolshoi simulations have been performed within the Bolshoi project of the University of California High-Performance AstroComputing Center (UC-HiPACC) and were run at the NASA Ames Research Center.

More information can be found on the credit page.

Columns

Name Type UCD Unit Description
dbid long meta.id
meta.main

unique database ID for this table, constructed from file number, snapnum and row in file
snapnum short time.epoch

snapshot number (same as in Rockstar-catalogues)
redshift double time.epoch

redshift of the universe for this timestep
rockstarid long meta.id
meta.main

ID in corresponding dark matter halo in Rockstar catalogue
depthfirstid long meta.id
meta.main

depthFirstId of dark matter halo in corresponding Rockstar catalogue
forestid long meta.id

ID of the merger forest in corresponding Rockstar catalogue
hosthaloid long meta.id

subhalo index from Rockstar output, same as rockstarId
mainhaloid long meta.id

central halo index from consistent-trees output
galaxytype short

type of the galaxy: 0=central, 1=satellite, 2=orphan satellite
halomass double h-1.solMass

remaining bound mass of a satellite
x double pos.cartesian.x h-1.Mpc

comoving x-position
y double pos.cartesian.y h-1.Mpc

comoving y-position
z double pos.cartesian.z h-1.Mpc

comoving z-position
vx double phys.veloc km.s-1

x-component of physical velocity
vy double phys.veloc km.s-1

y-component of physical velocity
vz double phys.veloc km.s-1

z-component of physical velocity
spin double

spin parameter
spinx double

spin vector, x-component
spiny double

spin vector, y-component
spinz double

spin vector, z-component
mstarspheroid double h-1.solMass

stellar mass in spheroid
mstardisk double phys.mass h-1.solMass

stellar mass in disk
mcoldspheroid double h-1.solMass

gas mass in spheroid
mcolddisk double phys.mass h-1.solMass

gas mass in disk
mhot double h-1.solMass

mass in hot halo
mbh double phys.mass h-1.solMass

mass of the central supermassive black hole
sfrspheroid double phys.SFR h-1.solMass.Gyr-1

star formation rate in spheroid
sfrdisk double phys.SFR h-1.solMass.Gyr-1

star formation rate in disk
sfr double phys.SFR h-1.solMass.Gyr-1

total star formation rate (disk+spheroid)
lstarsdssu double phys.luminosity 4.4659e13.W.Hz-1

total luminosity in observed frame
lstarsdssg double phys.luminosity 4.4659e13.W.Hz-1

total luminosity in observed frame
lstarsdssr double phys.luminosity 4.4659e13.W.Hz-1

total luminosity in observed frame
lstarsdssi double phys.luminosity 4.4659e13.W.Hz-1

total luminosity in observed frame
lstarsdssz double phys.luminosity 4.4659e13.W.Hz-1

total luminosity in observed frame
mzgasspheroid double phys.mass h-1.solMass

mass of metals in gas in spheroid component
mzgasdisk double phys.mass h-1.solMass

mass of metals in gas in disk component
mzhothalo double phys.mass h-1.solMass

mass of metals in hot halo
mzstarspheroid double phys.mass h-1.solMass

mass of metals in stars in spheroid component
mzstardisk double phys.mass h-1.solMass

mass of metals in stars in disk component
mvir_sam double phys.mass h-1.solMass

mass Mvir_SAM of the corresponding dark matter halo in Rockstar
basictimelastisolated double time.epoch

time at which the dark matter halo was last isolated (i.e. not a subhalo)
satellitemergetime double

time until satellite will merge with host
blackholecount int

number of supermassive black holes in the galaxy
blackholespin double

spin of the central supermassive black hole
rdisk double phys.size h-1.Mpc

disk scale length
rspheroid double phys.size h-1.Mpc

spheroid scale length
rhotouter double phys.size h-1.Mpc

outer radius of hot halo
vdisk double phys.veloc.rotat km.s-1

circular velocity of disk
vspheroid double phys.veloc.rotat km.s-1

circular velocity of spheroid
angmomdisk double pos solMass.Mpc.km.s-1

angular momentum of disk component, physical coordinates
angmomspheroid double pos solMass.Mpc.km.s-1

angular momentum of spheroid component, physical coordinates
angmomhot double pos solMass.Mpc.km.s-1

angular momentum in hot halo, physical coordinates
inclination double deg

randomly selected inclination for the disk in degrees
ninfilesnapnum long

number of galaxy in the data file, inside the output group for current snapnum
filenum int

number of the file from which the data was uploaded
ix int pos.cartesian.x

spatial grid index, x-direction
iy int pos.cartesian.y

spatial grid index, y-direction
iz int pos.cartesian.z

spatial grid index, z-direction
phkey long

Peano-Hilbert key index of space-filling curve