Data selection and derived parameters are described in detail by Bhambhani et al. (2023) 
https://ui.adsabs.harvard.edu/abs/2022arXiv221016112B/abstract 
Title: Red riding on hood: Exploring how galaxy colour depends on environment

The sample consists of 49,911 galaxies in redshift range 0.04 < z < 0.18 
and mass range 10^9 M_solar < M < 10^11.6 M_solar. 
The properties detailed in the catalogue include the stellar mass of the galaxy 
as well as the colour as defined using the three approaches mentioned in the paper. 
The mass and colour attributes are taken from the StellarMassesLambdarv20 table of 
the StellarMasses DMU of GAMA DR4. All of the objects in this catalog have reliable 
redshift quality nQ > 2.

The exception to this is the uminusr_model attribut, which is u-r colour obtained from 
SDSS model magnitudes, with the relevant k-corrections applied. 

uminusr_model = (U_MODEL - KCORR_U) - (R_MODEL - KCORR_R)

The above terms are the attribute names that can be found in the GAMA DR4 tables. 
The magnitudes (*_MODEL) can be found in the TilingCatv46 table of the EqInputCat DMU. 
The k-corrections (KCORR_*) can be found in the Eqkcorr_model_z00v05 table of the 
kCorrections DMU. All of the objects in this catalog have well-defined values of 
magnitudes and k-corrections.

Also included are the environmental measures -- three local densities 
(Sigma, CC and AGE), geometric measure (both definitions GeoS4 and GeoS10). The three 
local environmental densities are listed as both raw counts as well as in the 
log form -- the latter is what is used for the analysis presented in the paper. 
Also included are uncertainties associated with the raw counts. All of the local 
environment measures used have exact values, i.e. have a corresponding flag = 0 
in the table. In GAMA DR4, the three local environmental measures can be found in  
EnvironmentMeasuresv05 table of the EnvironmentMeasures DMU, while the geometric 
environment measure can be found in GalaxiesClassifiedv01 table of the 
GeometricEnvironments DMU. Finally, included is log_Lambda, local optimal density, 
see Section 4.3 and eq 11 of this paper.

Also listed are the 1/Vmax count associated with each galaxy as well the limiting 
redshift zmax. zmax_clipped is the limiting redshift after removing outliers as 
described in Section 3.1.2 of the paper. The equation for determining outliers 
is (logmstar is the stellar mass)

curve(z) = 4842.974 + (-0.08631685 - 4842.974)/(1 + (z/97.98973)^4.383614)
zmax_clipped = max(zmax, curve1(zmax)) if logmstar < 11.6 else zmax

Columns:

CATAID          Unique ID of GAMA object
RA              J2000 coordinate
DEC             J2000 coordinate
Z_CMB           CMB-frame redshift
zmax            Limiting redshift, the maximum redshift at which the object would be visible for r-band (Petrosian) magnitude limit of r < 19.8 mag
zmax_clipped    zmax value clipped to remove outliers as described above
one_over_vmax   1/Vmax volumetric correction count for the object
logmstar        (log of) stellar mass within the photometric aperture, in solar mass units
dellogmstar     Uncertainty on logmstar
uminusr         Restframe (u-r) colour from SED fit
deluminusr      Uncertainty on uminusr
Sigma           Raw count of surface density -- based on the distance to the 5th nearest neighbour
Sigma_Err       Surface density raw count uncertainty
log_Sigma       log of the raw count surface density
CC              Raw value of cylindrical count density -- number of (other) galaxies within cylinder of radius 1 co-moving Mpc
CC_Err          Cylindrical count density raw value uncertainty -- Poisson error on number of galaxies in cylinder
log_CC          log of the raw value of cylindrical count density
AGE_Par         Raw count of Adaptive Gaussian Environment density Parameter
AGE_Scale       Adaptive scaling factor used for the adaptive Gaussian ellipsoid
AGE_Err         Adaptive Gaussian Environment density raw count uncertainty
log_AGE         log the raw count of Adaptive Gaussian Environment density
GeoS4           Geometric environment of galaxy computed with 4 Mpc/h smoothing
GeoS10          Geometric environment of galaxy computed with 10 Mpc/h smoothing
log_Lambda      log of the local optimal environmental density
uminusr_stars   Intrinsic, stellar (u-r) colour from SED fit, i.e. corrected for internal dust obscuration
uminusr_model   Restframe (u-r) colour obtained from SDSS model magnitudes with k-corrections applied, as described above