DHWG_Parent_Sample_4458.fits
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Author: David H.W. Glass, University of Lancashire, 14/10/2025

Description
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This catalogue contains 4458 galaxies in the GAMA equatorial regions which form a clean and complete sample 
according to the following criteria (see the README file for more details):

Redshift quality >= 3
r-band apparent Petrosian magnitude (SDSS, from GAMA catalogue TilingCatv46) <= 19.8
r-band absolute Petrosian magnitude <= -17.4
r-band effective radius >= 1.2 arcsec
Flow-corrected redshift 0.002 <= z <= 0.06
Galaxies with stronger AGN removed by multiple methods (BPT, WHAN, WISE photometry, 20cm emission)

Contents
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The catalogue contains the following columns:

Column Type      Label            Description
------ ----      -----            -----------
   0   Integer   CATAID           GAMA identifier (applies to all GAMA catalogues).
   1   Double    RA               Right ascension (J2000, degrees, from GAMA II catalogue TilingCatv46)
   2   Double    DEC              Declination (J2000, degrees, from GAMA II catalogue TilingCatv46)
   3   Float     Z_HELIO          Heliocentric redshift (from GAMA II catalogue DistancesFramesv14).
                                  (from GAMA II catalogue DistancesFramesv14)
   6   Float     M_R_PET          r-band absolute Petrosian magnitude (SDSS), calculated from 
                                  observed SDSS r-band apparent magnitude in GAMA II catalogue TilingCatv46.
   7   Double    LUMDIST          Luminosity distance (Mpc)   
   8   Integer   Morph_Code       Visual morphology classification
   9   Double    F250BEST         250 micron flux density from Herschel-ATLAS catalogue v1.2 (Jy)
  10   Double    E250BEST         Uncertainty for F250BEST (Jy)
  11   Double    mstar_best       log_10(Stellar mass, Msolar) from GAMA II catalogue MagPhysv06
  12   Double    mstar_err_down   negative uncertainty in mstar_best(dex)
  13   Double    mstar_err_up     positive uncertainty in mstar_best (dex)
  14   Double    SFR_best         log_10(Star formation rate, Msolar yr^-1) from GAMA II catalogue MagPhysv06
  15   Double    SFR_err_down     negative uncertainty in SFR_best(dex)
  16   Double    SFR_err_up       positive uncertainty in SFR_best(dex)
  17   Double    mdust_best       log_10(Dust mass, Msolar) from GAMA II catalogue MagPhysv06
  18   Double    mdust_err_down   negative uncertainty in mdust_best(dex)
  19   Double    mdust_err_up     positive uncertainty in mdust_best (dex)

The GAMA II visual morphology codes applied are as follows:

0: Not classified (obscured)
1: Elliptical
2: Lenticular
3: Spiral
4: Sd_Irr
5: Little Blue Spheroid (LBS)
6: Edge-on (ellipticity > 0.7, cannot be classified reliably)

Visual morphology classifications are taken primarily from the GAMA II catalogue VisualMorphologyv03. Additional galaxies 
with spiral features within Elliptical, Lenticular and LBS classifications are identified using GAMA_KiDS_GalaxyZoo data 
and are assigned a Spiral classification. The classifications are not exact, but overall appear to be sufficient to identify 
galaxies with early-type and late-type features.

Other information can be added by cross-matching with relevant GAMA catalogues (http://www.gama-survey.org, under the Data tab) using GAMA identifiers (CATAID) for individual galaxy identification, e.g. using TOPCAT (www.star.bristol.ac.uk/mbt/topcat) or Astropy.Table commands within Python.

RA and DEC coordinates (J2000) are provided to allow cross-matching with catalogues from other surveys using sky position.