MDPL2 – SAGE
Description
SAGE semi-analytical galaxies, built using Rockstar catalog
General information on SAGE tables is also available at Tables – SAGE.
Please cite this data set using the unique digital object identifier doi:10.17876/cosmosim/mdpl2/008.
Columns
| Column | Type | UCD | Unit | Description |
|---|---|---|---|---|
| dbId | bigint | meta.id meta.main | unique database ID for this table, constructed from file number, snapnum and row in file | |
| snapnum | smallint | time.epoch | snapshot number, same as in Rockstar catalogue | |
| redshift | float | time.epoch | redshift of the universe for this timestep | |
| rockstarId | bigint | meta.id meta.main | ID in corresponding dark matter halo in Rockstar catalogue | |
| depthFirstId | bigint | meta.id meta.main | depthFirstId of dark matter halo in corresponding Rockstar catalogue | |
| forestId | bigint | meta.id | ID of the merger forest in corresponding Rockstar catalogue | |
| GalaxyID | bigint | meta.id | galaxy identifier | |
| HostHaloID | bigint | subhalo index from Rockstar output, same as rockstarId | ||
| MainHaloID | bigint | central halo index from consistent-trees output | ||
| GalaxyType | tinyint | type of the galaxy: 0=central, 1=satellite | ||
| HaloMass | float | phys.mass | solMass.h-1 | remaining bound mass of a satellite |
| Vmax | float | phys.velo.rotat | km.s-1 | halo circular velocity in physical coordinates |
| spin | float | spin parameter | ||
| x | float | pos.cartesian.x | Mpc.h-1 | comoving x-position |
| y | float | pos.cartesian.y | Mpc.h-1 | comoving y-position |
| z | float | pos.cartesian.z | Mpc.h-1 | comoving z-position |
| vx | float | phys.veloc | km/s | x-component of peculiar physical velocity |
| vy | float | phys.veloc | km/s | y-component of peculiar physical velocity |
| vz | float | phys.veloc | km/s | z-component of peculiar physical velocity |
| MstarSpheroid | float | phys.mass | solMass.h-1 | stellar mass in spheroid |
| MstarDisk | float | phys.mass | solMass.h-1 | stellar mass in disk |
| McoldDisk | float | phys.mass | solMass.h-1 | gas mass in disk |
| Mhot | float | phys.mass | solMass.h-1 | mass in hot halo |
| Mbh | float | phys.mass | solMass.h-1 | mass of one black hole (same mass for all) |
| SFRspheroid | float | phys.SFR | solMass.h-1.Gyr | star formation rate of the bulge |
| SFRdisk | float | phys.SFR | solMass.h-1.Gyr-1 | star formation rate in disk |
| SFR | float | phys.SFR | solMass.h-1.Gyr-1 | total star formation rate |
| MZhotHalo | float | phys.mass | solMass.h-1 | mass of metals in hot gas in the diffuse halo/atmosphere |
| MZstarSpheroid | float | phys.mass | solMass.h-1 | mass of metals in stars in the spheroid/bulge |
| MZstarDisk | float | phys.mass | solMass.h-1 | mass of metals in stars in the disk |
| MeanAgeStars | float | Gyr | mean age of stellar population | |
| NInFile | bigint | 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 | bigint | Peano-Hilbert key index of space-filling curve |
