J/MNRAS/377/430ivo://CDS.VizieR/J/MNRAS/377/430doi:10.26093/cds/vizier.73770430CDSMckean J.P.Browne I.W.A.Jackson N.J.Fassnacht C.D.Helbig P.2024-07-04T20:18:18Z2008-01-12T16:00:06ZCDS support team

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

cds-question@unistra.frsurveysradio-sourcesWe present the selection of the Jodrell Bank Flat-spectrum (JBF) radio source sample, which is designed to reduce the uncertainties in the Cosmic Lens All-Sky Survey (CLASS) gravitational lensing statistics arising from the lack of knowledge about the parent population luminosity function. From observations at 4.86GHz with the Very Large Array, we have selected a sample of 117 flat-spectrum radio sources with flux densities greater than 5mJy. These sources were selected in a similar manner to the CLASS complete sample and are therefore representative of the parent population at low flux densities. The vast majority (~90 per cent) of the JBF sample are found to be compact on the arcsec scales probed here and show little evidence of any extended radio jet emission. Using the JBF and CLASS complete samples, we find the differential number counts slope of the parent population above and below the CLASS 30-mJy flux density limit to be 2.07+/-0.02 and 1.96+/-0.12, respectively.2007MNRAS.377..430Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/377/430CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/72 : CLASS survey of radio sources (Myers+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/377/430https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/377/430http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/377/430https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/377/430https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/377/430http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/377/430GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/377/430/table2 (The JBF 4.86-GHz catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/430/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/430/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/430/table2?GETtext/xml+votable180.050000true59.4647183330.5131894440.005555555555555556Cone search capability for table J/MNRAS/377/430/table3 (The JBF 8.46GHz VLA data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/430/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/430/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/430/table3?GETtext/xml+votable180.050000true59.464710.5133513890.0055555555555555565/5785 7782 6/12288 18794 18837 19007 19032-19033 19050 19093 19136 21912-21913 21915 23148 25855 25919 25958 25962 26048 26201 26203 26368 30035-30037 30041 30043-30044 30115-30116 30118-30119 30124-30125 30975 31078-31079 31123 31126 31132 31134 31146-31147 31317 31402 31488 49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/377/430?format=asciiRadiodefaultJ/MNRAS/377/430/table2The JBF 4.86-GHz cataloguee_S1.4GHzrms uncertainty on S1.4GHzmJystat.errorfloatSI1Spectral index, alpha^4.86^_1.4_ (S({nu}){prop.to}{nu}^SI^)spect.indexfloate_SI1rms uncertainty on SI1stat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJBFIdentification number, JBF NNN in Simbadmeta.id;meta.mainintprimaryVSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainIpeakPeak surface brightness at 4.86GHz, in mJy/beammJyphot.flux.density;em.radio.6-12GHzfloate_Ipeakrms uncertainty on Ipeak, in mJy/beammJystat.errorfloatSintIntergated flux density at 4.86GHz from model fitting to the UV datamJyphot.flux.density;em.radio.3-6GHzfloate_Sintrms uncertainty on SintmJystat.errorfloatMorph[UE] Unresolved or Extended morphologysrc.morphcharObsDateObservation datetime.epoch;obsnullableArrayArray configurationphys.atmol.configuration;instr.setupcharSize1Beam sizearcsecphys.angSize;instr.beamfloatSize2Beam sizearcsecphys.angSize;instr.beamfloatPA[-90/90] Position angledegpos.posAngfloatnoisesigma_map_ (in uJy/beam)uJyinstr.det.noiseintS1.4GHzNVSS flux density at 1.4GHz within 70" of the JBF positionmJyphot.flux.density;em.radio.750-1500MHzfloatJ/MNRAS/377/430/table3The JBF 8.46GHz VLA datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJBFIdentification number, JBF NNN in Simbadmeta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainIpeakPeak surface brightness at 8.46GHz, in mJy/beammJyphot.flux.density;em.radio.6-12GHzfloate_Ipeakrms uncertainty on Ipeak, in mJy/beammJystat.errorfloatSintIntergated flux density at 8.46GHz from model fitting to the UV datamJyphot.flux.density;em.radio.6-12GHzfloate_Sintrms uncertainty on SintmJystat.errorfloatnoise{sigma}(map) (in uJy/beam)uJyinstr.det.noiseintSI1Spectral index, alpha^8.46^_1.4_ (S({nu}){prop.to}{nu}^SI^)spect.indexfloate_SI1rms uncertainty on SI1stat.errorfloatSI2Spectral index, alpha^8.46^_4.86_spect.indexfloate_SI2rms uncertainty on SI2stat.errorfloat