J/MNRAS/506/2232ivo://CDS.VizieR/J/MNRAS/506/2232doi:10.26093/cds/vizier.75062232CDSUmana G.Trigilio C.Ingallinera A.Riggi S.Cavallaro F.Marvil J.,Norris R.P.Hopkins A.M.Buemi C.S.Bufano F.Leto P.Loru S.,Bordiu C.Bunton J.D.Collier J.D.Filipovic M.Franzen T.M.O.,Thompson M.A.Andernach H.Carretti E.Dai S.Kapinska A.,Koribalski B.S.Kothes R.Leahy D.McConnell D.Tothill N.,Michalowski M.J.2024-11-06T20:34:08Z2024-06-24T13:31:07ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyplanetary-nebulaesupernova-remnantsh-ii-regionsgalaxy-planesradio-sourcesphotometryIn the broad context of the Australian Square Kilometer Array Pathfinder (ASKAP) early-science phase and preparation for the related surveys, we report the first radio observations towards the Galactic plane. The targeted field was chosen to encompass the entire SCORPIO survey, one of the several pathfinder projects for the Evolutionary Map of the Universe survey planned with the ASKAP. The observations were carried out in 2018 January at a central frequency of 912 MHz, with 15 operational antennas, and covered a total area of about 40 square degrees in three different pointings. The final image has a resolution of 24.1 * 21.1 arcsec^2^ and a median rms of 541 {mu}Jy/beam. We were able to extract 3545 candidate sources, 75 per cent of them point sources. For a preliminary validation, a comparison with the 843 MHz Molonglo Galactic Plane Survey is presented. Although the present observations were obtained with the ASKAP only partially deployed, its unique capability to map complex sources, such as those inhabiting the Galactic plane, at different angular scales, is highlighted. Within the SCORPIO field all the previously classified H II regions, Planetary Nebulae (PNe), and supernovae remnants (SNRs), previously known to be radio sources, were detected. We also report new radio detections from several H II regions previously classified as 'candidates' or 'radio quiet' and from half of all the PNe in the SCORPIO field with robust classification. Most notably, we find numerous unclassified, extended sources which constitute a promising sample of candidates H II regions and SNRs.2021MNRAS.506.2232Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/506/2232CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/212/1 : The WISE catalog of Galactic HII regions (Anderson+, 2014)J/MNRAS/454/902 : SCORPIO 1 catalogue of compact radio sources (Umana+, 2015)J/ApJS/117/361 : PNe in NRAO VLA Sky Survey (Condon+ 1998)J/AJ/131/2525 : MAGPIS 20cm survey (Helfand+, 2006)J/A+A/619/A124 : THOR survey in northern Galactic plane (Wang+, 2018)J/MNRAS/490/5063 : Extended sources in SCORPIO at 2.1GHz (Ingallinera+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/506/2232https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/506/2232http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/506/2232https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/506/2232https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/506/2232http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/506/2232GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/506/2232/table2 (*H II regions and H II regions candidates detected and extracted with SELAVY)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/506/2232/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/506/2232/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/506/2232/table2?GETtext/xml+votable180.050000true252.385417-44.4411110.0055555555555555565/10595 6/42378-42379 42387 42389-42394 42396-42398 42435-42436 42440-424416.042975451280461e-25 6.042975451280461e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/506/2232?format=asciiRadiodefaultJ/MNRAS/506/2232/table2*H II regions and H II regions candidates detected and extracted with SELAVYSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource identifier name construct as JDDD.ddd+DD.dddd (SourceID)meta.id;meta.maincharWISEWISE identifier as GLLL.lll+BB.bbb ([ABB2014] WISE GLLL.lll+BB.bbb in Simbad) (1)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainClClassification of HII region (C) (2)meta.code.classcharS912The integrated flux density at 912 MHz (S912) (3)mJyphot.flux.density;em.radio.750-1500MHzdoublee_S912Mean error of S912 (err)mJystat.errorfloatMajAxisFWHM of the major axes ({theta}^d^_max_) (4)arcsecphys.angSizefloatMinAxisFWHM of the minor axes (({theta}^d^_min_) (4)arcsecphys.angSizefloat