ATHDFSOID ivo://nasa.heasarc/athdfsoid NASA/GSFC HEASARC Huynh et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The Australia Telescope Hubble Deep Field-South (ATHDF-S) survey of the Hubble Deep Field-South (HDF-S) reaches sensitivities of ~ 10 µJy (µJy) at 1.4, 2.5, 5.2, and 8.7 GHz, making the ATHDF-S one of the deepest surveys ever performed with the Australia Telescope Compact Array (ATCA). This table contains the optical identifications of the ATHDF-S radio sources (the radio data from which are available in summarized form in the HEASARC ATHDFSCCAT table) using data from the literature. The authors find that ~ 66% of the radio sources have optical counterparts to an I magnitude of 23.5 mags. Deep Hubble Space Telescope (HST) imaging of the area identifies a further 12% of the radio sources. In this table, the authors present data from new spectroscopic observations for 98 of the radio sources and supplement these spectroscopic redshifts with photometric ones calculated from five-band optical imaging. The radio observations and data reduction are detailed in Papers I-III of this series: <pre> I = Norris et al., 2005, AJ, 130, 1358; II = Huynh et al., 2005, AJ, 130, 1373, available at the HEASARC as the ATHDFS1P4G table; III = Huynh et al., 2007, AJ, 133, 1331, available at the HEASARC as the ATHDFSCCAT and ATHDFS3FRQ tables. </pre> Palunas et al. (2000, ApJ, 541, 61) observed the HDF-S region using the Big Throughput Camera (BTC) on the Cerro Tololo Inter-American Observatory (CTIO) 4m during 1998 September. Images were taken in the Sloan Digital Sky Survey (SDSS) u, Johnson B and V, and Cousins R and I filters. In addition, the authors obtained spectra of the ATHDF-S radio sources over two service nights in 2001 July and 2003 October using the multi-fiber 2dF instrument of the Anglo-Australian Telescope (AAT). They acquired low-resolution (9 Angstrom) spectra over the wavelength range from 3800 to 8000 Angstroms. This table was created by the HEASARC in December 2012 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/AJ/135/2470">CDS Catalog J/AJ/135/2470</a> files table1.dat and table10.dat which contain the entire contents of Tables 1 and 10 from the published paper. This is a service provided by NASA HEASARC . 2008AJ....135.2470H https://heasarc.gsfc.nasa.gov/W3Browse/all/athdfsoid.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=athdfsoid& GET text/xml 180 99999 true 338.26508333 -60.96433333 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=athdfsoid GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_athdfsoid&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0166666666666667 Radio public athdfsoid Australia Telescope Hubble Deep Field-South Optical Identificati name Source Designation (ATHDFS JHHMMSS.s+DDMMSSA) 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 ctio_source_number CTIO Catalog Identification meta.id.cross int nullable vmag V Band Magnitude (in AB System) mag phot.mag;em.opt.V double nullable vmag_error RMS Error in V Magnitude mag stat.error;phot.mag;em.opt.V double nullable phot_redshift CTIO Photometric Redshift src.redshift.phot double nullable phot_redshift_error Uncertainty in CTIO Photometric Redshift stat.error;src.redshift.phot double nullable redshift 2dF Redshift src.redshift double nullable redshift_flag Flag Indicates Quality of Redshift meta.code.qual;src.redshift short nullable nicmos_flag Flag [Y] Indicates a NICMOS Counterpart meta.code char nullable h_beta_flux H-Beta Line Flux (CCD Counts) ct spect.line.intensity;em.line.Hbeta int nullable class Browse Object Classification src.class short nullable bmag_error RMS Error in B Magnitude mag stat.error;phot.mag;em.opt.B double nullable lii Galactic Longitude degree pos.galactic.lon double nullable o_iii_flux_error Uncertainty in OIII (5007) Line Flux ct stat.error;spect.line.intensity;em.line.OIII short nullable h_beta_flux_limit Limit Flag for H-Beta Line Flux meta.code;spect.line.intensity;em.line.Hbeta char nullable n_ii_flux NII (6584) Line Flux (CCD Counts) ct spect.line.intensity;em.line int nullable ctio_flag CTIO Counterpart meta.code char nullable h_alpha_flux H-Alpha Line Flux (CCD Counts) ct spect.line.intensity;em.line.Halpha int nullable bmag B Band Magnitude (in AB System) mag phot.mag;em.opt.B double nullable bii Galactic Latitude degree pos.galactic.lat double nullable h_beta_flux_error Uncertainty in H-Beta Line Flux ct stat.error;spect.line.intensity;em.line.Hbeta short nullable n_ii_flux_error Uncertainty in NII (6584) Line Flux ct stat.error;spect.line.intensity;em.line short nullable umag_error RMS Error in U Magnitude mag stat.error;phot.mag;em.opt.U double nullable spectra_comments Additional Comments meta.note char nullable rmag_error RMS Error in R Magnitude mag stat.error;phot.mag;em.opt.R double nullable imag_error RMS Error in I Magnitude mag stat.error;phot.mag;em.opt.I double nullable h_alpha_flux_error Uncertainty in H-Alpha Line Flux ct stat.error;spect.line.intensity;em.line.Halpha short nullable rmag R Band Magnitude (in AB System) mag phot.mag;em.opt.R double nullable stis_flag Flag [Y] Indicates a STIS Counterpart meta.code char nullable imag I Band Magnitude (in AB System) mag phot.mag;em.opt.I double nullable umag U Band Magnitude (in AB System) mag phot.mag;em.opt.U double nullable n_ii_flux_limit Limit Flag for NII (6584) Line Flux meta.code;spect.line.intensity;em.line char nullable broad_type Spectral Type src.class char nullable o_iii_flux OIII (5007) Line Flux (CCD Counts) ct spect.line.intensity;em.line.OIII int nullable o_iii_flux_limit Limit Flag for OIII (5007) Line Flux meta.code;spect.line.intensity;em.line.OIII char nullable wfpc2_flag Flag [Y] Indicates a WFPC2 Counterpart meta.code char 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