SAGE (mdpl2.sage)

The table has 10100245504 rows, 38 columns.


SAGE catalog of semi-analytical galaxies, built using Rockstar catalog


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. ( and the Partnership for Advanced Supercomputing in Europe (PRACE, for funding the MultiDark simulation project by providing computing time on the GCS Supercomputer SuperMUC at Leibniz Supercomputing Centre (LRZ, 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.


Name Type UCD Unit Description
dbid long

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 catalogue

redshift double time.epoch

redshift of the universe for this timestep

rockstarid long

ID in corresponding dark matter halo in Rockstar catalogue

depthfirstid long

depthFirstId of dark matter halo in corresponding Rockstar catalogue

forestid long

ID of the merger forest in corresponding Rockstar catalogue

galaxyid long

galaxy identifier

hosthaloid long

subhalo index from Rockstar output, same as rockstarId

mainhaloid long

central halo index from consistent-trees output

galaxytype short

type of the galaxy: 0=central, 1=satellite

halomass double phys.mass h-1.solMass

remaining bound mass of a satellite

vmax double phys.veloc.rotat km.s-1

halo circular velocity in physical coordinates

spin double

spin parameter

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 peculiar physical velocity

vy double phys.veloc km.s-1

y-component of peculiar physical velocity

vz double phys.veloc km.s-1

z-component of peculiar physical velocity

mstarspheroid double phys.mass h-1.solMass

stellar mass in spheroid

mstardisk double phys.mass h-1.solMass

stellar mass in disk

mcolddisk double phys.mass h-1.solMass

gas mass in disk

mhot double phys.mass h-1.solMass

mass in hot halo

mbh double phys.mass h-1.solMass

mass of one black hole (same mass for all)

sfrspheroid double phys.SFR h-1.solMass.Gyr-1

star formation rate of the bulge

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

mzgasdisk double
mzhothalo double phys.mass h-1.solMass

mass of metals in hot gas in the diffuse halo/atmosphere

mzstarspheroid double phys.mass h-1.solMass

mass of metals in stars in the spheroid/bulge

mzstardisk double phys.mass h-1.solMass

mass of metals in stars in the disk

meanagestars double Gyr

mean age of stellar population

ninfile 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