VIII/34ivo://CDS.VizieR/VIII/34CDSDrinkwater M.J.Webster R.L.Francis P.J.Condon J.J.,Ellison S.L.Jauncey D.L.Lovell J.Peterson B.A.Savage A.1998-03-12T16:06:50Z1998-03-12T17:06:42ZCDS support team

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

cds-question@unistra.frradio-sourcesWe present a new sample of Parkes half-Jansky flat-spectrum radio sources having made a particular effort to find any previously unidentified sources. The sample contains 323 sources selected according to a flux limit of 0.5 Jy at 2.7 GHz, a spectral index measured between 2.7 and 5.0 GHz of {alpha}(2.7/5.0) > -0.5, where S(f) is proportional to f^alpha^, Galactic latitude |b| > 20{deg} and -45{deg} < Declination(B1950) < +10{deg}. The sample was selected from a region 3.90 steradians in area. We have obtained accurate radio positions for all the unresolved sources in this sample and combined these with accurate optical positions from digitised photographic sky survey data to check all the optical identifications. We report new identifications based on R- and Kn-band imaging and new spectroscopic measurements of many of the sources. We present a catalogue of the 323 sources of which 321 now have identified optical counterparts and 277 have measured spectral redshifts.1997MNRAS.284...85Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/VIII/34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www.phys.unsw.edu.au/~mjd/papers : original papersVIII/5 : Bright Extragalactic Radio Sources (1Jy) (Kuehr+, 1981)VIII/15 : Parkes Radio Sources Catalogue (PKSCAT90) (Wright+ 1990)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=VIII/34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VIII/34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VIII/34https://vizier.cds.unistra.fr/viz-bin/votable?-source=VIII/34https://vizier.iucaa.in/viz-bin/votable?-source=VIII/34http://vizieridia.saao.ac.za/viz-bin/votable?-source=VIII/34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VIII/34/catalog (Parkes Half-Jansky Flat-Spectrum Sample (Table 5 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/VIII/34/catalog?https://vizier.iucaa.in/viz-bin/conesearch/VIII/34/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/VIII/34/catalog?GETtext/xml+votable180.050000true1.5578694-6.39311380.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/VIII/34?format=asciiRadiodefaultVIII/34/catalogParkes Half-Jansky Flat-Spectrum Sample (Table 5 of the paper)z? redshiftsrc.redshiftfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/323]+ Running numbermeta.idintprimaryindexedNamePKSCAT90 name (B1950) from cat. <VIII/15>meta.id;meta.maincharS2.7Flux density at 2.7GHzJyphot.flux.density;em.radio.1500-3000MHzfloatS5.0Flux density at 5.0GHzJyphot.flux.density;em.radio.3-6GHzfloatalphaspectral indexspect.indexfloatrFlux[1/121] Flux referencemeta.refintRAB1950Right ascension B1950 (hours)pos.eq.ra;meta.mainDEB1950Declination B1950 (sign)pos.eq.dec;meta.mainrPosposition referencemeta.refintcommentcomment on radio/optical morphology (1)meta.notechardRA(optical-radio) RA offsetarcsecpos.eq.ra;arith.difffloatdDE(optical-radio) Dec offsetarcsecpos.eq.dec;arith.difffloatdrtotal position offsetarcsecpos.angDistancefloatcl[gsfm] morphological classification (2)src.morph.typecharBj? Magnitude at optical Bjmagphot.mag;em.opt.Bfloatnullablel_z[>] (for lower limits)meta.code.errorcharr_z[1/121]? redshift referencemeta.refintnullableRsp? published spectrum referencemeta.refintnullableRA2000Right Ascension J2000 (hours)pos.eq.raDE2000Declination J2000 (sign)pos.eq.decVIII/34/refsReference list with codesTextof Referencemeta.refcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefNum[1/121]+ Reference number (rFlux, rPos, r_z)meta.refintprimaryindexedBibCodeBibliographic code, or CDS catalogue numbermeta.bib.bibcodechar