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README~
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##################################
# Table sample_CRP02_sub.csv
##################################
------------------------------------------------------------------------------------
- Description of group/cluster sample:
------------------------------------------------------------------------------------
--> Group selection criteria:
N_gals >= 10;
at 0.015 < z < 0.1;
with 13.4 < log Mvir < 14.6
--> Galaxy selection criteria
Mabs_Petro <= -20.39 (completeness limit)
------------------------------------------------------------------------------------
- Columns:
------------------------------------------------------------------------------------
objID - SDSS-DR12 objID
specObjID - SDSS-DR12 specObjID
ra - RA (degrees)
dec - DEC (degrees)
magPetro_g - Petrosian magnitude in g band, extinction corrected
magPetro_r - Petrosian magnitude in r band, extinction corrected
magPetro_i - Petrosian magnitude in i band, extinction corrected
z - Galaxy redshift
zErr - Galaxy redshift error
bpt - Galaxy classification based on BPT diagram
lgm_tot_p50 - Stellar mass (MPA-JHU, Brinchmann et al. 2004)
lgm_tot_p16 - The 16th percentile of the Log total stellar mass PDF using model photometry
lgm_tot_p84 - The 84th percentile of the Log total stellar mass PDF using model photometry
sfr_tot_p50 - Star formation rate (MPA-JHU, Brinchmann et al. 2004)
sfr_tot_p16 - The 16th percentile of the SFR PDF
sfr_tot_p84 - The 84th percentile of the SFR PDF
specsfr_tot_p50 - Specific star formation rate (MPA-JHU, Brinchmann et al. 2004)
specsfr_tot_p16 - The 16th percentile of the sSFR PDF
specsfr_tot_p84 - The 16th percentile of the sSFR PDF
petroRad_r - Petrosian radius in r band (arcsec)
mu_petro_r - Petrosian surface brightness in r band
mu_petro_r = (magPetro_r - kcorr075_r + 2.5*log10(2 * pi * petroRad_r^2) - 10 * log10(1 + z))
eClass - SDSS eClass parameter
logMass_MILES - log(stellar mass) obtained using the STARLIGHT code with MILES models
ageM_MILES - Mass-weighted age obtained using the STARLIGHT code with MILES models (Gyr)
metM_MILES - Mass-weighted metallicity obtained using the STARLIGHT code with MILES models
ageL_MILES - Luminosity-weighted age obtained using the STARLIGHT code with MILES models (Gyr)
metL_MILES - Luminosity-weighted metallicity obtained using the STARLIGHT code with MILES models
sigma_MILES - Velocity dispersion obtained using the STARLIGHT code with MILES models (km/s)
av_MILES - Internal extinction Av obtained using the STARLIGHT code with MILES models
logMass_BC03 - log(stellar mass) obtained using the STARLIGHT code with BC03 models
ageM_BC03 - Mass-weighted age obtained using the STARLIGHT code with BC03 models (Gyr)
metM_BC03 - Mass-weighted metallicity obtained using the STARLIGHT code with BC03 models
ageL_BC03 - Luminosity-weighted age obtained using the STARLIGHT code with BC03 models (Gyr)
metL_BC03 - Luminosity-weighted metallicity obtained using the STARLIGHT code with BC03 models
sigma_BC03 - Velocity dispersion obtained using the STARLIGHT code with BC03 models (km/s)
av_MILES - Internal extinction Av obtained using the STARLIGHT code with BC03 models
sn_SDSS - Median signal-to-noise over all good pixels in r-band (retrieved from SDSS database)
color_gr - g-r color (Petrosian, k-corrected)
color_gi - g-i color (Petrosian, k-corrected)
absPetro_g - Petrosian absolute magnitude in g band (extinction and k-corrected)
absPetro_r - Petrosian absolute magnitude in r band (extinction and k-corrected)
absPetro_i - Petrosian absolute magnitude in i band (extinction and k-corrected)
igal - Galaxy ID (Yang et al. catalogue)
groupID - Group ID (Yang et al. catalogue)
Rproj_LW - projected distance (kpc) of galaxy from luminosity weighted group center
Rproj_L - projected distance (kpc) of galaxy from the brightest group galaxy
Rproj_M - projected distance (kpc) of galaxy from the most massive group galaxy
groupRA - Group RA (degrees)
groupDEC - Group DEC (degrees)
groupZ - Group redshift
Ngals - Number of galaxy members
logM200_L - Group virial mass
logM200_low_L - Group virial mass error (lower value)
logM200_up_L - Group virial mass error (upper value)
R200_L - Group virial radius
R200_low_L - Group virial radius error (lower value)
R200_up_L - Group virial radius error (upper value)
sigma_L - Group velocity dispersion (km/s)
sigma_low_L - Group velocity dispersion error (lower value)
sigma_up_L - Group velocity dispersion error (upper value)
Ngals200_L - Number of galaxies within R200_L
Ngals200_low_L - Number of galaxies within R200_L error (lower value)
Ngals200_up_L - Number of galaxies within R200_L error (upper value)
assign - Density constrast calculated during assignment procedure
(-1 means that galaxy is a group member in Yang et al. catalogue)
zoo - Galaxy Zoo 1 classification (E - elliptical; S - spiral; U - undefined)
vlos_sigma - Line of sight velocity relative to group velocity dispersion
RprojL_Rvir - projected distance of galaxy from the brightest group galaxy, normalized by Rvir
RprojLW_Rvir - projected distance of galaxy from luminosity weighted group center, normalized by Rvir
RprojM_Rvir - projected distance of galaxy from most massive group galaxy, normalized by Rvir