ATHDFSCCAT ivo://nasa.heasarc/athdfsccat NASA/GSFC HEASARC Huynh et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source Deep radio observations of a wide region centered on the Hubble Deep Field-South (HDF-S) have been performed, providing one of the most sensitive sets of radio observations acquired on the Australia Telescope Compact Array (ATCA) to date. A central rms of ~ 10 µJy is reached at four frequencies (1.4, 2.5, 5.2, and 8.7 GHz). In this table, the combined 4-frequency AT-HDFS Catalog including fluxes and spectral indices for sources detected at 1.4, 2.5, 5.2, and/or 8.7 GHz observations is presented to complement the single-frequency radio data for the 1.4 GHz observations which were presented in Paper II (Huynh et al., 2005, AJ, 130, 1373, available at the HEASARC as the ATHDFS1P4G table) in this series, and for the 2.5, 5.2, and/or 8.7 GHz observations which were presented in the reference paper (Paper III, Huynh et al., 2007, AJ, 133, 1331, available at the HEASARC as the ATHDFS3FRQ table). The details of the observations and data reduction are discussed in detail in Paper I of this series (Norris et al., 2005, AJ, 130, 1358) and summarized in Table 1 of the reference paper. The radio observations were carried out by the ATCA over 4 years from 1998 to 2001. The observations at 1.4 and 2.5 GHz consist of single pointings centered on RA (J2000.0) = 22<sup>h</sup> 33<sup>m</sup> 25.96<sup>s</sup>, Dec (J2000.0) = -60<sup>o</sup> 38' 09.0". The observations at 5.2 and 8.7 GHz consist of single pointings centered on RA (J2000.0) = 22<sup>h</sup> 32<sup>m</sup> 56.22<sup>s</sup>, Dec (J2000.0) = -60<sup>o</sup> 33' 02.7". The 5.2 and 8.7 GHz observations are centered on the HST WFPC field, while the 1.4 and 2.5 GHz observations were pointed halfway between the WFPC field and a bright confusing source to allow the bright source to be well cleaned from the 1.4 and 2.5 GHz images. This HEASARC table contains the final consolidated catalog of 473 individual sources and gives the flux densities at all frequencies for each individual radio source. It contains the 466 1.4-GHz sources from Paper II together with 5 unmatched 2.5-GHz sources and 2 unmatched 8.7-GHz sources. The procedure that the authors used to construct this catalog is discussed in Section 6 of the reference paper. This table was created by the HEASARC in December 2012 based on the <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/AJ/130/1371">CDS Catalog J/AJ/130/1371</a> file table9.dat which contains the entire contents of Table 9 from the published paper. This is a service provided by NASA HEASARC . 2007AJ....133.1331H https://heasarc.gsfc.nasa.gov/W3Browse/all/athdfsccat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=athdfsccat& GET text/xml 180 99999 true 338.26508333 -60.96433333 0.0333333333333333 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=athdfsccat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_athdfsccat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.0333333333333333 Radio public athdfsccat Australia Telescope Hubble Deep Field-South Combined Source Cata 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 flux_1p4_ghz_limit Limit Flag for Source 1.4-GHz Flux Density meta.code;phot.flux.density;em.radio.750-1500MHz char nullable flux_1p4_ghz Source 1.4-GHz Flux Density mJy phot.flux.density;em.radio.750-1500MHz double nullable flux_2p5_ghz_limit Limit Flag for Source 2.5-GHz Flux Density meta.code;phot.flux.density;em.radio.1500-3000MHz char nullable flux_2p5_ghz Source 2.5-GHz Flux Density mJy phot.flux.density;em.radio.1500-3000MHz double nullable flux_5p2_ghz_limit Limit Flag for Source 5.2-GHz Flux Density meta.code;phot.flux.density;em.radio.3-6GHz char nullable flux_5p2_ghz Source 5.2-GHz Flux Density mJy phot.flux.density;em.radio.3-6GHz double nullable flux_8p7_ghz_limit Limit Flag for Source 8.7-GHz Flux Density meta.code;phot.flux.density;em.radio.6-12GHz char nullable flux_8p7_ghz Source 8.7-GHz Flux Density mJy phot.flux.density;em.radio.6-12GHz double nullable agn_flag Flag Indicates Flat, Inverted (AGN) or GHz-Peaked Source (GPS) meta.code;src char nullable position_origin Flag [LSCX] Indicates Origin of Position: L=1.4GHz, S=2.5GHz, C=5.2GHz, X=8.7GHz meta.code char nullable flux_2p5_ghz_flag Flag [S] Indicates Supplementary Source at 2.5 GHz meta.code;phot.flux.density;em.radio.1500-3000MHz char nullable spectral_index_sc_error Uncertainty in Spectral Index Between 2.5 and 5.2 GHz stat.error;spect.index;em.radio double nullable spectral_index_cx Spectral Index Between 5.2 and 8.7 GHz spect.index;em.radio double nullable spectral_index_ls_error Uncertainty in Spectral Index Between 1.4 and 2.5 GHz stat.error;spect.index;em.radio double nullable spectral_index_cx_error Uncertainty in Spectral Index Between 5.2 and 8.7 GHz stat.error;spect.index;em.radio double nullable bii Galactic Latitude degree pos.galactic.lat double nullable spectral_index_sc Spectral Index Between 2.5 and 5.2 GHz spect.index;em.radio double nullable spectral_index_ls_limit Limit Flag for Spectral Index Between 1.4 and 2.5 GHz meta.code;spect.index;em.radio char nullable lii Galactic Longitude degree pos.galactic.lon double nullable flux_5p2_ghz_flag Flag [S] Indicates Supplementary Source at 5.2 GHz meta.code;phot.flux.density;em.radio.3-6GHz char nullable spectral_index_ls Spectral Index Between 1.4 and 2.5 GHz spect.index;em.radio double nullable flux_8p7_ghz_flag Flag [S] Indicates Supplementary Source at 8.7 GHz meta.code;phot.flux.density;em.radio.6-12GHz 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