2.2.1.2  :  AqB2_stars

This table contains stars and their associated properties from the mock catalogue.

Each star has a set of positions and velocities specified relative to the galactic centre, and relative to an observer placed at a position similar to that of the Sun's in the Milky Way. This observer has been placed on the x-axis at r = (x,y,z) = (8,0,0) kpc, with a velocity (U,V,W) = (11, 12 + 220, 7) km/s, (v_x, v_y, v_z) = (-11, -232, 7) km/s.

columntypeunitdescription
ID long ID of the star, unique within the mock catalogue
x float kpc x-component position, relative to halo centre
y float kpc y-component position, relative to halo centre
z float kpc z-component position, relative to halo centre
v_x float km/s x-component velocity, relative to halo rest frame
v_y float km/s y-component velocity, relative to halo rest frame
v_z float km/s z-component velocity, relative to halo rest frame
l float degrees Galactic longitude relative to Sun
b float degrees Galactic latitude relative to Sun
r float kpc Distance from Sun
v_r float km/s Radial velocity relative to Sun
v_theta float km/s Tangential velocity relative to Sun
age float log10(yr) Age of the star expressed as log10(years)
metallicity float Gyr Fraction of star mass in metals
mass float Msun Current mass of star
logg float Surface gravity of the star
logTe float Effective temperature of the star
type int The type of star based on its current evolutionary stage of the PARSEC isochrone. (0=Pre-MS, 1=Main sequence, 2=Subgiant branch, 3=Red giant branch, 4,5,6=stages of core He burning, 7,8=stages of Asymptotic giant branch)
absmag_u float Absolute rest frame u band (SDSS) magnitude of the star.
absmag_g float Absolute rest frame g band (SDSS) magnitude of the star.
absmag_r float Absolute rest frame r band (SDSS) magnitude of the star.
absmag_i float Absolute rest frame i band (SDSS) magnitude of the star.
absmag_z float Absolute rest frame z band (SDSS) magnitude of the star.
appmag_u float Apparent u band (SDSS) magnitude of the star as seen from the Sun.
appmag_g float Apparent g band (SDSS) magnitude of the star as seen from the Sun.
appmag_r float Apparent r band (SDSS) magnitude of the star as seen from the Sun.
appmag_i float Apparent i band (SDSS) magnitude of the star as seen from the Sun.
appmag_z float Apparent z band (SDSS) magnitude of the star as seen from the Sun.
subhaloID long ID of subhalo to which the dark matter particle this star was spawned from, is a member of. -1 means it is not currently a member of any subhalo, 0 means it is part of the main halo.
TreeID long The subhalo tree that this star came from. All stars that arrive in the main halo via the same satellite have the same TreeID.
infRedshift float Accretion redshift of the subhalo this star once belonged to, defined as the redshift at which the satellite reaches its maximum mass.
dmID long ID of associated dark matter particle.