| column |
type |
UCD |
unit |
description |
| galaxyID |
long |
meta.id;meta.main |
|
ID of galaxy, unique within simulation and SAM run. |
| lastProgenitorId |
long |
meta.id.assoc |
|
All galaxies with id between this galaxyId and
this lastProgenitorId together are the merger tree rooted in this
galaxy.
|
| descendantId |
long |
meta.id.assoc |
|
Pointer to the descendant of this galaxy in its
merger tree; -1 if there is no descendant
|
| haloID |
long |
meta.id.parent |
|
Unique ID of MPA halo containing this galaxy
|
| subhaloID |
long |
meta.id; |
|
The ID of the sub-halo this galaxy resides in.
Identical to the subhaloId column of the halo identified by the haloId. |
| fofId |
long |
meta.id.assoc |
|
The subhaloId of the sub-halo at the center of the FOF group that this galaxy is contained in.Br>
NB This is not equivalent to the firstSubhaloID column in the MField..FOF table! |
| treeId |
long |
meta.id.assoc |
|
unique id of galaxy formation tree containing this galaxy
The following equality holds: treeId = 1000000*floor(galaxyId/1000000). |
| firstProgenitorId |
long |
meta.id.assoc |
|
Main progenitor of this galaxy. Also the first
progenitor in a linked list representation of the merger tree. |
| nextProgenitorId |
long |
meta.id.assoc |
|
Next progenitor of this galaxy in linked list
representation of merger tree
|
| type |
int |
src.class |
|
0,1 or 2 indicating whether this galaxy is a
central galaxy of its
FOF group, central galaxy of a subhalo, or a satellite galaxy. |
| snapnum |
int |
time |
|
The snapshot number where this galaxy was
identified.
This column corresponds to the snapnum column in
the Snapshots
table in this database.
|
| redshift |
float |
time |
|
redshift of the snapshot where this galaxy resides
|
| centralMvir |
float |
phys.veloc.dispersion |
1010/h Msun |
virial mass of background (FOF) halo containing
this galaxy
|
| phkey |
int |
|
|
Peano-Hilbert key, (bits=5), for position in
62.5/h Mpc box
See the text on spatial
indexes.
|
| x |
float |
pos.cartesian.x |
1/h Mpc |
x-component position
|
| y |
float |
pos.cartesian.y |
1/h Mpc |
y-component position
|
| z |
float |
pos.cartesian.z |
1/h Mpc |
z-component position
|
| zCurveIndex |
long |
|
|
The "bit-interleaved" or "Z-curve" index, corresponding to this galaxy's position. Same resolution as phKey.
See the text on spatial indexes.
|
| ix |
integer |
pos.cartesian.x |
|
Zone index along x-direction, based on 50 bins
See the text on spatial indexes.
|
| iy |
integer |
pos.cartesian.x |
|
Zone index along y-direction, based on 50 bins
See the text on spatial indexes.
|
| iz |
integer |
pos.cartesian.x |
|
Zone index along z-direction, based on 50 bins
See the text on spatial indexes.
|
| velX |
float |
phys.veloc |
km/s |
x-component velocity
|
| velY |
float |
phys.veloc |
km/s |
y-component velocity
|
| velZ |
float |
phys.veloc |
km/s |
z-component velocity
|
| np |
int |
meta.number |
|
Number of particles in halo the galaxy belongs to.
|
| mvir |
float |
phys.mass |
1010/h Msun |
Virial mass of the subhalo the galaxy is/was the
center of.
|
| rvir |
float |
phys.size.radius |
Mpc/h |
Virial radius of the subhalo the galaxy is/was
the center of.
|
| vvir |
float |
phys.veloc |
km/s |
Virial velocity of the subhalo the galaxy is/was
the center of.
|
| vmax |
float |
phys.veloc.rotat |
km/s |
Maximum rotational velocity of the subhalo of
which this galaxy is the center, or the last value for satellite
galaxies.
|
| coldGas |
float |
phys.mass |
1010/h Msun |
Mass in cold gas.
|
| stellarMass |
float |
phys.mass |
1010/h Msun |
Mass in stars.
|
| bulgeMass |
float |
phys.mass |
1010/h Msun |
Mass of bulge.
|
| hotGas |
float |
phys.mass |
1010/h Msun |
Mass in hot gas component of this galaxy's
subhalo. TBD on type 2 galaxies.
|
| ejectedMass |
float |
phys.mass |
1010/h Msun/h |
Mass in a collapsed wind to be reincorporated at
the next timestep
|
| blackHoleMass |
float |
phys.mass |
1010/h Msun |
Mass of central black hole
|
| metalsColdGas |
float |
phys.mass |
1010/h Msun |
Mass in metals in cold gas.
|
| metalsStellarMass |
float |
phys.mass |
1010/h Msun |
Mass in metals in stars.
|
| metalsBulgeMass |
float |
phys.mass |
1010/h Msun |
Mass in metals in bulge.
|
| metalsHotGas |
float |
phys.mass |
1010/h Msun |
ratio of mass in metals.
|
| metalsEjectedMass |
float |
phys.mass |
1010/h Msun |
Mass in metals in a collapsed wind to be
reincorporated at the next timestep |
| metalsblackHoleMass |
float |
phys.mass |
1010/h Msun |
Mass in metals in central black hole.
|
| sfr |
float |
phys.SFR |
Msun/yr |
Star formation rate
|
| sfrBulge |
float |
phys.SFR |
Msun/yr |
Star formation rate in the bulge.
|
| xrayLum |
float |
em.X-Ray |
TBD |
X-Ray luminosity
|
| diskRadius |
float |
phys.size.radius |
Mpc/h |
Disk radius, derived form halo radius ala Mo, Mao and White (1997) |
| coolingRadius |
float |
phys.size.radius |
Mpc/h |
The radius within which the cooling time scale is
shorter than the dynamical timescale
|
| mag_b |
float |
em.opt.B |
|
Absolute rest frame B (Buser B3 filter) magnitude
(Vega) of galaxy.
|
| mag_v |
float |
em.opt.V |
|
Absolute rest frame V (Buser V filter) magnitude
(Vega) of galaxy
|
| mag_r |
float |
em.opt.R |
|
Absolute rest frame R (Johnson R filter)
magnitude (Vega) of galaxy.
|
| mag_i |
float |
em.opt.I |
|
Absolute rest frame I (Johnson I filter)
magnitude (Vega) of galaxy.
|
| mag_k |
float |
em.opt |
|
Absolute rest frame K (Johnson K filter)
magnitude (Vega) of galaxy.
|
| sdss_u |
float |
|
|
Absolute rest frame SDSS u magnitude (AB) |
| sdss_g |
float |
|
|
Absolute rest frame SDSS g magnitude (AB) |
| sdss_r |
float |
|
|
Absolute rest frame SDSS r magnitude (AB) |
| sdss_i |
float |
|
|
Absolute rest frame SDSS i magnitude (AB) |
| sdss_z |
float |
|
|
Absolute rest frame SDSS z magnitude (AB) |
| mag_bBulge |
float |
em.opt.B |
|
Absolute rest frame B (Buser B3 filter) magnitude
(Vega) of bulge
|
| mag_vBulge |
float |
em.opt.V |
|
Absolute rest frame V (Buser V filter) magnitude
(Vega) of bulge
|
| mag_rBulge |
float |
em.opt.R |
|
Absolute rest frame R (Johnson R filter)
magnitude (Vega) of bulge
|
| mag_iBulge |
float |
em.opt.I |
|
Absolute rest frame I (Johnson I filter)
magnitude (Vega) of bulge
|
| mag_kBulge |
float |
em.opt |
|
Absolute rest frame K (Johnson K filter)
magnitude (Vega) of bulge
|
| sdss_uBulge |
float |
|
|
Absolute rest frame SDSS u magnitude (AB) of bulge |
| sdss_gBulge |
float |
|
|
Absolute rest frame SDSS g magnitude (AB) of bulge |
| sdss_rBulge |
float |
|
|
Absolute rest frame SDSS r magnitude (AB) of bulge |
| sdss_iBulge |
float |
|
|
Absolute rest frame SDSS i magnitude (AB) of bulge |
| sdss_zBulge |
float |
|
|
Absolute rest frame SDSS z magnitude (AB) of bulge |
| mag_bDust |
float |
em.opt.B |
|
Absolute rest frame B (Buser B3 filter) magnitude
(Vega), dust extinction included
|
| mag_vDust |
float |
em.opt.V |
|
Absolute rest frame V (Buser V filter) magnitude
(Vega), dust extinction included
|
| mag_rDust |
float |
em.opt.R |
|
Absolute rest frame R (Johnson R filter)
magnitude (Vega), dust extinction included
|
| mag_iDust |
float |
em.opt.I |
|
Absolute rest frame I (Johnson I filter)
magnitude (Vega), dust extinction included
|
| mag_kDust |
float |
em.opt |
|
Absolute rest frame K (Johnson K filter)
magnitude (Vega), dust extinction included
|
| sdss_uDust |
float |
|
|
Absolute rest frame SDSS u magnitude (AB), dust extinction included |
| sdss_gDust |
float |
|
|
Absolute rest frame SDSS g magnitude (AB), dust extinction included |
| sdss_rDust |
float |
|
|
Absolute rest frame SDSS r magnitude (AB), dust extinction included |
| sdss_iDust |
float |
|
|
Absolute rest frame SDSS i magnitude (AB), dust extinction included |
| sdss_zDust |
float |
|
|
Absolute rest frame SDSS z magnitude (AB), dust extinction included |
| massWeightedAge |
float |
|
109 yr |
The age of this galaxy, weighted by mass of their
components. |
| ShellRadius |
float |
phys.size |
Mpc/h
|
Radius of galactic wind.
|
| ShellMass |
float |
phys.mass |
1010/h Msun |
Mass in wind outer shell. See Section 2.2 of
Bertone, De Lucia and Thomas 2007. |
| ShellMetals |
float |
phys.mass |
1010/h Msun |
Mass in metals in wind outer shell.
See Section 2.2 of Bertone, De Lucia and Thomas 2007. |
| WindMass |
float |
phys.mass |
1010/h Msun |
Mass in wind bubble, or cavity.
See Section 2.2 of Bertone, De Lucia and Thomas 2007. |
| WindMetals |
float |
phys.mass |
1010/h Msun |
Mass in metals in wind bubble, or cavity.
See Section 2.2 of Bertone, De Lucia and Thomas 2007.
|
| WindEnergy |
float |
phys.energy |
1010/h Msun km/s |
Wind energy in a pressure-driven wind.
|
| BubbleEnergy |
float |
phys.energy |
1010/h Msun km/s |
Bubble energy in a pressure-driven wind (eq. 1 in
Bertone, De Lucia and Thomas 2007).
|
| BubbleTemp |
float |
phys.temperature |
Kelvin |
Bubble temperature of a pressure-driven wind.
|
| BubbleAge |
float |
phys.time |
s |
Age of a pressure-driven wind.
|
| ShockVelocity |
float |
phys.velocity |
km/s |
Wind speed at shock radius.
|
| MassInIGM |
float |
phys.mass |
1010/h Msun |
Mass deposited in IGM.
|
| MetalsMassInIGM |
float |
phys.mass |
1010/h Msun |
Mass in metals deposited in IGM.
|
| Bubble |
int
|
index
|
|
Index for wind:
Bubble=0 no wind present
Bubble=1 pressure -driven wind
Bubble=2 momentum-driven wind
|
| random |
integer |
|
|
Random number between 0 and 1000000 (using java.lang.Math.random()).
See the page on random sampling.
|
