ATPMNCAT ivo://nasa.heasarc/atpmncat NASA/GSFC HEASARC McConnell et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This table contains a source catalog of 9040 radio sources derived from high-resolution observations of a selection of 8385 Parkes-MIT-NRAO (PMN) sources made with the Australia Telescope Compact Array (ATCA). The catalog lists flux density and structural measurements at 4.8 and 8.6 GHz, derived from observations of all PMN sources in the declination range -87 degrees < Dec < -38.5 degrees (exclusive of galactic latitudes |b| < 2 degrees) with PMN flux density S<sub>4850</sub> > 70mJy (> 50 mJy south of Dec = -73 degrees). The authors assess the quality of the data, which was gathered in the 1992-1994 time period, and the resulting source parameters. They describe the population of catalogued sources, and compare it to samples from complementary catalogs. In particular, they find 122 radio sources with highly probable association with gamma-ray sources observed by the orbiting Fermi Large Area Telescope (LAT), and 11 more radio sources with possible associations with Fermi LAT sources. This Australia Telescope PMN (ATPMN) catalog lists the source measurements of flux density, position and structure of a selection of sources from the PMN catalog. Each catalog entry corresponds to a discrete source observed by the ATCA. In many cases, a single PMN source yields several ATPMN sources. Apart from the name of the parent PMN source, there is no indication of physical association: multiple sources in the one field may be aligned by chance, or may be components of the one object. This catalog contains the following information for each source: position; the flux density at 4.8 and 8.6 GHz; uncertainties in each flux density; the source size modelled as an ellipse (major axes, minor axes, position angle) of the best fit for a Gaussian brightness distribution; the spectral index computed between 4.8 and 8.6 GHz; the uncertainty in the spectral index; a code denoting the epoch of the observation. In the table as given in the original reference, the positions were given with varying degrees of precision, from 0.001 to 1 second of time in RA and from 0.01 to 1 arcsecond in Declination. The authors state in Section 4 of the reference paper that the error in a position coordinate is less than 10 times the final digit given in the coordinate. The positions as displayed in this table do not reflect this system: e.g., a Dec value displayed as '-79 58 34.00' may have been given in the original table as '-79 58 34.00' or '-79 58 34.0' or '-79 58 34'. To recover this information about positional precision the HEASARC has created two additional parameters ra_accuracy and dec_accuracy which list the number of digits after the decimal point given in the original table for the RA and Dec, respectively. Thus, if ra_accuracy = 3, the RA was given to a precision of 0.001 s in the original table, implying that the actual error in RA was less than 10 * 0.001 = 0.01 s. This table was created by the HEASARC in July 2012 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/422/1527">CDS Catalog J/MNRAS/422/1527</a> file atpmncat.dat. This is a service provided by NASA HEASARC . 2012MNRAS.422.1527M https://heasarc.gsfc.nasa.gov/W3Browse/all/atpmncat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=atpmncat& GET text/xml 180 99999 true 218.19 -86.93930556 0.05 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=atpmncat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_atpmncat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 RADIO CATALOG 0.05 Radio public atpmncat Australia Telescope-PMN Catalog of Southern Radio Sources name IAU Source Designation (ATPMN JHHMMSS.S+DDMMSS) meta.id;meta.main char nullable pmn_name PMN Source Designation (PMN JHHMM+DDMMa) meta.id.cross char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable flux_3p5_cm Flux Density at 8.6 GHz mJy phot.flux.density;em.radio.6-12GHz short nullable flux_3p5_cm_error Uncertainty in Flux Density at 8.6 GHz mJy stat.error;phot.flux.density;em.radio.6-12GHz short nullable flux_6_cm Flux Density at 4.8 GHz mJy phot.flux.density;em.radio.3-6GHz short nullable flux_6_cm_error Uncertainty in Flux Density at 4.8 GHz mJy stat.error;phot.flux.density;em.radio.3-6GHz short nullable spectral_index Spectral Index spect.index;em.radio double nullable spectral_index_error Uncertainty in Spectral Index stat.error;spect.index;em.radio 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 position_angle_6_cm Position Angle at 4.8 GHz degree pos.posAng short nullable lii Galactic Longitude degree pos.galactic.lon double nullable position_angle_3p5_cm Position Angle at 8.6 GHz degree pos.posAng short nullable minor_axis_3p5_cm Minor Axis at 8.6 GHz arcsec phys.size.sminAxis double nullable ra_accuracy Number Indicates Accuracy of Right Ascension stat.error;pos.eq.ra short nullable bii Galactic Latitude degree pos.galactic.lat double nullable fit_flag Flag Indicates Quality of Fit (0: OK, 1: Residual RMS High) meta.code.qual short nullable major_axis_3p5_cm Major Axis at 8.6 GHz arcsec phys.size.smajAxis double nullable dec_accuracy Number Indicates Accuracy of Declination stat.error;pos.eq.dec short nullable major_axis_6_cm Major Axis at 4.8 GHz arcsec phys.size.smajAxis double nullable minor_axis_6_cm Minor Axis at 4.8 GHz arcsec phys.size.sminAxis double nullable hour_angle_flag Flag Indicates Hour Angle Coverage Quantity (0=OK, 1=only 2 hr angles observed) meta.code.qual short nullable obs_epochs Epochs of Observation time.epoch short nullable