J/other/PASA/41.ivo://CDS.VizieR/J/other/PASA/41.3CDSDuchesne S.Grundy J.A.Heald George H.Lenc E.Leung J.K.,McConnell D.Murphy T.Pritchard J.Rose K.Thomson A.J.M.Wang Y.,Wang Z.Whiting M.T.2025-04-01T12:52:45Z2025-03-25T10:36:46ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysradio-sourcesradio-continuum-emissiongalaxy-classification-systemsThe Australian SKA Pathfinder (ASKAP) has surveyed the sky at multiple frequencies as part of the Rapid ASKAP Continuum Survey (RACS). The first two RACS observing epochs, at 887.5 (RACS-low) and 1367.5 (RACS-mid) MHz, have been released (McConnell, et al. 2020PASA...37...48M; Duchesne, et al. 2023PASA...40...34D). A catalogue of radio sources from RACS-low has also been released, covering the sky south of declination +30{deg} (Hale, et al., 2021PASA...38...58H). With this paper, we describe and release the first set of catalogues from RACS-mid, covering the sky below declination +49{deg}. The catalogues are created in a similar manner to the RACS-low catalogue, and we discuss this process and highlight additional changes. The general purpose primary catalogue covering 36200 sq deg features a variable angular resolution to maximise sensitivity and sky coverage across the catalogued area, with a median angular resolution of 11.2"x9.3". The primary catalogue comprises 3105668 radio sources, including those in the Galactic Plane (2861923 excluding Galactic latitudes of |b|<5{deg}), and we estimate the catalogue to be 95% complete for sources above 2mJy.2024PASA...41....3Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/PASA/41.3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/other/PASA/38.58 : Rapid ASKAP Continuum Survey. II. RACS cat. (Hale+, 2021)J/other/PASA/42.38 : RACS VI. RACS-high 1655.5MHz catalogue (Duchesne+, 2025)https://research.csiro.au/racs/ : RACS project websitehttps://doi.org/10.25919/p524-xb81 : RACS-mid collection on CASDAhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/PASA/41.3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/PASA/41.3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/PASA/41.3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/PASA/41.3https://vizier.iucaa.in/viz-bin/votable?-source=J/other/PASA/41.3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/PASA/41.3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/PASA/41.3/sourcesm (RACS-mid primary source or island catalogue (RACS-mid_sources))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/PASA/41.3/sourcesm?https://vizier.iucaa.in/viz-bin/conesearch/J/other/PASA/41.3/sourcesm?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/PASA/41.3/sourcesm?GETtext/xml+votable180.050000true4.2999337.10650.005555555555555556Cone search capability for table J/other/PASA/41.3/gcompsm (RACS-mid primary Gaussian component catalogue (RACS-mid_components))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/PASA/41.3/gcompsm?https://vizier.iucaa.in/viz-bin/conesearch/J/other/PASA/41.3/gcompsm?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/PASA/41.3/gcompsm?GETtext/xml+votable180.050000true4.2999337.10650.0055555555555555560/4-11 1/0 4 8 12 2/4 8 20 24 36 40 52 56 3/20-22 24-26 36-38 40-42 84-86 88-90 100-102 104-106 148-150 152-154 164-166 168-170 212-214 216-218 228-229 232-234 4/92 108 112 156 172 176 192 348 364 368 412 428 432 448 604 620 624 668 684 688 704 860 876 880 922-924 940 944 960 5/372-374 376-378 436-438 440-442 452-454 456-458 628-630 632-634 692-694 696-698 708-710 712-714 772-774 776-778 1396-1398 1400-1402 1460-1462 1464-1466 1476-1478 1480-1482 1652-1654 1656-1658 1716-1718 1720-1722 1732-1734 1736-1738 1796-1798 1800-1802 2420-2422 2424-2426 2484-2486 2488-2490 2500-2502 2504-2506 2676-2678 2680-2682 2740-2742 2744-2746 2756-2758 2760-2762 2820-2822 2824-2826 3444-3446 3448-3450 3508-3510 3512-3514 3524-3526 3528-3530 3680 3682-3683 3685-3687 3700-3702 3704-3706 3764-3766 3768-3770 3780-3782 3784-3786 3844-3846 3848-3850 6/1500-1502 1516-1518 1520-1522 1756-1758 1772-1774 1776-1778 1820-1822 1836-1838 1840-1842 1856-1858 1920-1922 2524-2526 2540-2542 2544-2546 2780-2782 2796-2798 2800-2802 2844-2846 2860-2862 2864-2866 2880-2882 2944-2946 3100-3102 3116-3118 3120-3122 3136-3138 3200-3202 5596-5598 5612-5614 5616-5618 5852-5854 5868-5870 5872-5874 5916-5918 5932-5934 5936-5938 5952-5954 6016-6018 6620-6622 6636 6638 6640-6642 6876-6878 6892-6894 6896-6898 6940-6942 6956-6958 6960-6962 6976-6978 7040-7042 7196-7198 7212-7214 7216-7218 7232-7234 7296-7298 9692-9694 9708-9710 9712 9714 9948-9950 9964-9966 9968-9970 10012-10014 10028-10030 10032-10034 10048-10050 10112 10114 10716-10718 10732-10734 10736-10738 10972-10974 10988-10990 10992-10994 11036-11038 11052-11054 11056-11058 11072-11074 11136-11138 11292-11294 11308-11310 11312-11314 11328-11330 11392-11394 13788-13790 13804-13806 13808-13810 14044-14046 14060-14062 14064-14066 14108-14110 14124-14126 14128-14130 14144-14146 14208-14210 14724-14726 14736-14737 14739 14812-14814 14828-14830 14832 14834 15068-15069 15084-15086 15088-15090 15132-15134 15148-15150 15152-15154 15168-15170 15232-15234 15388-15390 15404-15406 15408-15410 15424-15426 15488-15490https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/PASA/41.3?format=asciiOpticalRadiodefaultJ/other/PASA/41.3/sourcesmRACS-mid primary source or island catalogue (RACS-mid_sources)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldIDField name: RACS_HHMM+/-DD (Field_ID)obs.fieldcharSourceIDUnique identifier based on the field the source is located in and the index assigned by PyBDSF (Source_ID)meta.idcharRAJ2000Right ascension (J2000) of the source (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) of the source (Dec)degpos.eq.dec;meta.mainindexedDEdegcDeclination (J2000) of the source after Declination-dependent offsets applied (Dec_corr)degpos.eq.dece_RAJ2000Uncertainty on right ascension from fitting the source position (E_RA)degstat.error;pos.eq.radoublee_DEJ2000Uncertainty on declination from fitting the source position (E_Dec)degstat.error;pos.eq.decdoublee_DEdegcUncertainty on corrected declination from fitting (E_Dec_corr)degstat.error;pos.eq.decdoubleFtotTotal flux density of the source (Total_flux)mJyphot.flux.density;em.radio.750-1500MHzdoublee_FtotPyUncertainty in the total flux density from PyBDSF fitting (E_Total_flux_PyBDSF)mJystat.errordoublee_FtotQuadrature sum of the brightness scale and PyBDSF uncertainties for total flux density (E_Total_flux)mJystat.errordoubleFpeakPeak flux density of the source (Peak_flux)mJy/beamphot.flux.density;em.radio.750-1500MHzdoublee_FpeakPyUncertainty in the peak flux density from PyBDSF fitting (E_Peak_flux_PyBDSF)mJy/beamstat.errordoublee_FpeakQuadrature sum of the brightness scale and PyBDSF uncertainties for peak flux density (E_Peak_flux)mJy/beamstat.errordoubleMajSize of the major axis of the source (Maj_axis)arcsecphys.angSizedoubleMinSize of the minor axis of the source (Min_axis)arcsecphys.angSize;srcdoublePAPosition angle of the source, east of north (PA)degpos.posAngdoublee_MajUncertainty in the source major axis (E_Maj_axis)arcsecstat.errordoublee_MinUncertainty in the source minor axis (E_Min_axis)arcsecstat.error;stat.mindoublee_PAUncertainty in the source PA (E_PA)degstat.errordoubleDCMajDeconvolved source major axis (DC_Maj_axis)arcsecphys.angSizedoubleDCMinDeconvolved source minor axis (DC_Min_axis)arcsecphys.angSize;srcdoubleDCPADeconvolved source PA (DC_PA)degpos.posAngdoublee_DCMajUncertainty in the deconvolved source major axis (E_DC_Maj_axis)arcsecstat.errordoublee_DCMinUncertainty in the deconvolved source minor axis (E_DC_Min_axis)arcsecstat.errordoublee_DCPAUncertainty in the deconvolved source PA (E_DC_PA)degstat.errordoubleNoiseLocal estimate of the root-mean-square noise (Noise)mJy/beaminstr.det.noisefloatTilelDirection cosine l of the source with respect to the field centre (Tile_l)degpos.dirCos;obs.fielddoubleTilemDirection cosine m of the source with respect to the field centre (Tile_m)degpos.dirCos;obs.fielddoubleTilesepAngular separation from the field centre (Tile_sep)degpos.angDistancedoubleGLONGalactic longitude of the source (Gal_lon)degpos.galactic.lonGLATGalactic latitude of the source (Gal_lat)degpos.galactic.latdoublePSFMajMajor axis FWHM of the PSF for the field (PSF_Maj)arcsecphys.angSizefloatPSFMinMinor axis FWHM of the PSF for the field (PSF_Min)arcsecphys.angSizefloatPSFPAPA of the PSF for the field (PSF_PA)degpos.posAngfloatSCodeSource structure classification by PyBDSF (S_Code)meta.codecharNGaussNumber of Gaussian components comprising the source (N_Gaussians)meta.numberintFlag[012] Source type flag (Flag) (G1)meta.code.errorcharScanStartMJDObservation start time in MJD of the field (Scan_start_MJD)yrtime.epochdoubleindexedScanLengthObservation length of the field (Scan_length)stime.expofloatSBID[20147/41554] Scheduling block ID of the field (SBID)meta.id;obs.fieldinte_FluxScaleFractional brightness scale uncertainty (E_Flux_scale)stat.errorfloatRACS-MID1Source name following IAU source name convention: RACS-MID1 JHHMMSS.s+DDMMSS (Name)meta.id;meta.maincharJ/other/PASA/41.3/gcompsmRACS-mid primary Gaussian component catalogue (RACS-mid_components)DCMajDeconvolved source major axis (DC_Maj_axis)arcsecphys.angSizedoubleDCPADeconvolved source PA (DC_PA)degpos.posAngdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRACS-MID1Source name following IAU source name convention: RACS-MID1 JHHMMSS.S+DDMMSS (Name)meta.id;meta.maincharRAJ2000Right ascension (J2000) of the source (RA)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) of the source (Dec)degpos.eq.dec;meta.mainindexedDEdegcDeclination (J2000) of the source after declination-dependent offsets applied (Dec_corr)degpos.eq.dece_RAJ2000Uncertainty on right ascension from fitting the source position (E_RA)degstat.error;pos.eq.radoublee_DedegUncertainty on declination from fitting the source position (E_Dec)degstat.errordoublee_DedegcUncertainty on corrected declination from fitting (E_Dec_corr)degstat.errordoubleFtotTotal flux density of the source (Total_flux)mJyphot.flux.density;em.radio.750-1500MHzdoublee_FtotPyUncertainty in the total flux density from PyBDSF fitting (E_Total_flux_PyBDSF)mJystat.errordoublee_FtotQuadrature sum of the brightness scale and PyBDSF uncertainties for total flux density (E_Total_flux)mJystat.errordoubleFpeakPeak flux density of the source (Peak_flux)mJy/beamphot.flux.density;em.radio.750-1500MHzdoublee_FpeakPyUncertainty in the peak flux density from PyBDSF fitting (E_Peak_flux_PyBDSF)mJy/beamstat.errordoublee_FpeakQuadrature sum of the brightness scale and PyBDSF uncertainties for peak flux density (E_Peak_flux)mJy/beamstat.errordoubleMajSize of the major axis of the source (Maj_axis)arcsecphys.angSizedoubleMinSize of the minor axis of the source (Min_axis)arcsecphys.angSize;srcdoublePAPosition angle of the source, east of north (PA)degpos.posAngdoublee_MajUncertainty in the source major axis (E_Maj_axis)arcsecstat.errordoublee_MinUncertainty in the source minor axis (E_Min_axis)arcsecstat.error;stat.mindoublee_PAUncertainty in the source PA (E_PA)degstat.errordoubleDCMinDeconvolved source minor axis (DC_Min_axis)arcsecphys.angSize;srcdoublee_DCMajUncertainty in the deconvolved source major axis (E_DC_Maj_axis)arcsecstat.errordoublee_DCMinUncertainty in the deconvolved source minor axis (E_DC_Min_axis)arcsecstat.errordoublee_DCPAUncertainty in the deconvolved source PA (E_DC_PA)degstat.errordoubleNoiseLocal estimate of the root-mean-square noise (Noise)mJy/beaminstr.det.noisefloatTilelDirection cosine l of the source with respect to the field centre (Tile_l)degpos.dirCos;obs.fielddoubleTilemDirection cosine m of the source with respect to the field centre (Tile_m)degpos.dirCos;obs.fielddoubleTilesepAngular separation from the field centre (Tile_sep)degpos.angDistancedoubleGLONGalactic longitude of the source (Gal_lon)degpos.galactic.lonGLATGalactic latitude of the source (Gal_lat)degpos.galactic.latdoublePSFMajMajor axis FWHM of the PSF for the field (PSF_Maj)arcsecphys.angSizefloatPSFMinMinor axis FWHM of the PSF for the field (PSF_Min)arcsecphys.angSizefloatPSFPAPA of the PSF for the field (PSF_PA)degpos.posAngfloatSCodeSource structure classification by PyBDSF (S_Code)meta.codecharFlag[012] Source type flag (Flag) (G1)meta.code.errorcharScanStartMJDObservation start time in MJD of the field (Scan_start_MJD)yrtime.epochdoubleindexedScanLengthObservation length of the field (Scan_length)stime.expofloatSBID[20147/41554] Scheduling block ID of the field (SBID)meta.id;obs.fieldinte_FluxScaleFractional brightness scale uncertainty (E_Flux_scale)stat.errorfloatSourceIDUnique identifier based on the field the source is located in and the index assigned by PyBDSF (Source_ID)meta.idcharFieldIDField name: RACS_HHMM+DD (Field_ID)obs.fieldchar