DHWG_AGN_459.fits
-------------------------

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

Description
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This catalogue contains 459 galaxies in the GAMA equatorial regions within the redshift range 0.002 <= z <= 0.06,
identified as having stronger AGN by the following methods (see the README file for more details):

BPT diagram (Baldwin, Philips & Terlevich 1981 PASP 93 5)
WHAN diagram (Cid Fernandes et al. 2011 MNRAS 413 1687)
WISE diagram (Mateos et al. 2012 MNRAS 436 3271)
20cm continuum emission > 10 mJy from VLA FIRST survey (Becker et al. 1995 ApJ 450 559)

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).
   4   Float     Z_TONRY          Flow-corrected redshift (from GAMA II catalogue DistancesFramesv14).
   5   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   AGN_BPT          AGN detection by BPT diagram
   9   Integer   AGN_WHAN         AGN detection by WHAN diagram
   10  Integer   AGN_WISE         AGN detection by WISE diagram
   11  Integer   AGN_20           AGN detection by 20cm continuum emission
   12  Double    F250BEST         250 micron flux density from Herschel-ATLAS catalogue v1.2 (Jy)
   13  Double    E250BEST         Uncertainty for F250BEST (Jy)
   14  Double    mstar_best       log_10(Stellar mass, Msolar) from GAMA II catalogue MagPhysv06
   15  Double    mstar_err_down   negative uncertainty in mstar_best(dex)
   16  Double    mstar_err_up     positive uncertainty in mstar_best (dex)
   17  Double    SFR_best         log_10(Star formation rate, Msolar yr^-1) from GAMA II catalogue MagPhysv06
   18  Double    SFR_err_down     negative uncertainty in SFR_best(dex)
   19  Double    SFR_err_up       positive uncertainty in SFR_best(dex)
   20  Double    mdust_best       log_10(Dust mass, Msolar) from GAMA II catalogue MagPhysv06
   21  Double    mdust_err_down   negative uncertainty in mdust_best(dex)
   22  Double    mdust_err_up     positive uncertainty in mdust_best (dex)


The AGN detection columns use flags of 1 (detected), 0 (undetected).

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 are provided to allow cross-matching with catalogues from other surveys using sky position.