Phoenix Deep Survey Optical and Near-Infrared Counterparts Catalog

Phoenix Deep Survey Optical and Near-Infrared Counterparts Catalog PDSOID ivo://nasa.heasarc/pdsoid NASA/GSFC HEASARC Georgakakis et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source Using a deep Australia Telescope Compact Array (ATCA) radio survey covering an area of ~3 deg2 to a 4-sigma sensitivity of >= 100 µJy (µJy) at 1.4 GHz, the authors study the nature of faint radio galaxies. The region, 2 degrees in diameter and centered on RA and Dec (J2000.0) of 1h 14m 12.16s, -45o 44' 08.0" (Galactic latitude of -71o), is known as the Phoenix Deep Field. About 50% of the detected radio sources are identified with an optical counterpart revealed by CCD photometry to mR = 22.5 magnitudes. Near-infrared (K-band) data are also available for a selected sample of the radio sources, while spectroscopic observations have been carried out for about 40% of the optically identified sample. These provide redshifts and information on the stellar content. Emission-line ratios imply that most of the emission-line sources are star-forming galaxies, with a small contribution (~ 10%) from Seyfert 1/Seyfert 2 type objects. The authors also find a significant number of absorption-line systems, likely to be ellipticals. These dominate at high flux densities ( > 1 mJy) but are also found at sub-mJy levels. Using the Balmer decrement, they find a visual extinction AV = 1.0 for the star-forming faint radio sources. This moderate reddening is consistent with the (V - R) and (R - K) colors of the optically identified sources. For emission-line galaxies, there is a correlation between the radio power and the H-alpha luminosity, in agreement with the result of Benn et al. (1993, MNRAS, 263, 98). This suggests that the radio emission of starburst radio galaxies is a good indicator of star formation activity. When calculating luminosities, the authors assume a cosmology with a Hubble constant H0 of 50 km s-1 Mpc-1 and a deceleration parameter q0 of 0.5. This table was created by the HEASARC in June 2013 based on an electronic version of Table 1 from the reference paper, which details the photometric (optical and near-infrared), radio, spectroscopic and intrinsic properties of the faint radio sources in the PDS with established redshifts, which was obtained from the CDS web site (their catalog J/MNRAS/306/708 file table1.dat). This is a service provided by NASA HEASARC . 1999MNRAS.306..708G https://heasarc.gsfc.nasa.gov/W3Browse/all/pdsoid.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=pdsoid& GET text/xml 180 99999 true 18.08380417 -46.62161944 0.0833333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=pdsoid GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_pdsoid&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0833333333333333 Infrared Optical Radio public pdsoid Phoenix Deep Survey Optical and Near-Infrared Counterparts Catal name Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable vmag V Magnitude mag phot.mag;em.opt.V double nullable rmag Cousins R Magnitude mag phot.mag;em.opt.R double nullable kmag K Magnitude mag phot.mag;em.IR.K double nullable flux_1p4_ghz Radio Flux Density at 1.4GHz mJy phot.flux.density;em.radio.750-1500MHz double nullable redshift Redshift src.redshift double nullable redshift_flag Flag [0-3] Indicates Redshift Estimate Quality Parameter meta.code;src.redshift short nullable broad_type Spectral Classification src.class char nullable vr_color_error RMS Uncertainty in V-Rc Color Index mag stat.error;phot.color;em.opt.V;em.opt.R double nullable rf_oii_3727a_ew_error RMS Uncertainty in EW[OII] Angstrom stat.error;spect.line.eqWidth;em.line short nullable abs_rmag Absolute R Magnitude mag phys.magAbs;em.opt.R double nullable rf_oii_3727a_ew Rest-Frame [O II]3727 Equivalent Width Angstrom spect.line.eqWidth;em.line short nullable bii Galactic Latitude degree pos.galactic.lat double nullable rf_halpha_ew Rest-Frame H-Alpha Equivalent Width Angstrom spect.line.eqWidth;em.line.Halpha short nullable rf_halpha_ew_error RMS Uncertainty in Rest-Frame H-Alpha Equivalent Width Angstrom stat.error;spect.line.eqWidth;em.line.Halpha short nullable source_number Sequential Identification Number for Each Source in Catalog meta.id;src short nullable vr_color Cousins V-Rc Color Index mag phot.color;em.opt.V;em.opt.R double nullable rk_color Cousins R-Kc Color Index mag phot.color;em.opt.R;em.IR.K double nullable lii Galactic Longitude degree pos.galactic.lon double nullable log_1p4_ghz_luminosity Logarithm of Radio Luminosity at 1.4GHz log(W/Hz) phys.luminosity;em.radio.750-1500MHz double nullable class Browse Object Classification src.class short nullable rk_color_error RMS Uncertainty in R-Kc Color Index mag stat.error;phot.color;em.opt.R;em.IR.K double nullable log_halpha_luminosity Logarithm of H-Alpha Luminosity log(W) phys.luminosity;em.line.Halpha double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable