J/ApJS/230/7ivo://CDS.VizieR/J/ApJS/230/7doi:10.26093/cds/vizier.22300007CDSPerley R.A.Butler B.J.2017-09-04T08:18:14Z2017-08-03T09:39:46ZCDS support team

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

cds-question@unistra.frinterferometryradio-sourcesThe flux-density scale of Perley & Butler (2013ApJS..204...19P) is extended downward to ~50MHz by utilizing recent observations with the Karl G. Jansky Very Large Array (VLA) of 20 sources between 220MHz and 48.1GHz, and legacy VLA observations at 73.8MHz. The derived spectral flux densities are placed on an absolute scale by utilizing the Baars+ (1977A&A....61...99B) values for Cygnus A (3C405) for frequencies below 2GHz, and the Mars-based polynomials for 3C286, 3C295, and 3C196 from Perley & Butler above 2GHz. Polynomial expressions are presented for all 20 sources, with accuracy limited by the primary standards to 3%-5% over the entire frequency range. Corrections to the scales proposed by Perley & Butler, and by Scaife & Heald (2012MNRAS.423L..30S) are given.2017ApJS..230....7Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/230/7CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/146/120 : MOJAVE. X. Parsec-scale kinematics of AGNs (Lister+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/230/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/230/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/230/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/230/7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/230/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/230/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJS/230/7/table5Derived spectral flux densitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreq[0.07/48.1] FrequencyGHzem.freqfloatJ0133Flux density of J0133-3629 at Freq (1)Jyphot.flux.density;em.radiofloat3C48Flux density of J0137+3309 (3C48) at Freq (1)Jyphot.flux.density;em.radiofloatForAFlux density of J0322-3712 (Fornax A) at Freq (1)Jyphot.flux.density;em.radioint3C123Flux density of J0437+2940 (3C123) at Freq (1)Jyphot.flux.density;em.radiofloatJ0444Flux density of J0444-2809 at Freq (1)Jyphot.flux.density;em.radiofloat3C138Flux density of J0521+1638 (3C138) at Freq (1)Jyphot.flux.density;em.radiofloatPicAFlux density of J0519-4546 (Pictor A) at Freq (1)Jyphot.flux.density;em.radiofloat3C144Flux density of J0534+2200 (3C144) at Freq (1)Jyphot.flux.density;em.radioint3C147Flux density of J0542+4951 (3C147) at Freq (1)Jyphot.flux.density;em.radiofloat3C196Flux density of J0813+4813 (3C196) at Freq (1)Jyphot.flux.density;em.radiofloat3C218Flux density of J0918-1205 (3C218) at Freq (1)Jyphot.flux.density;em.radiofloat3C274Flux density of J1230+1223 (3C274) at Freq (1)Jyphot.flux.density;em.radioint3C286Flux density of J1331+3030 (3C286) at Freq (1)Jyphot.flux.density;em.radiofloat3C295Flux density of J1411+5212 (3C295) at Freq (1)Jyphot.flux.density;em.radiofloat3C348Flux density of J1651+0459 (3C348) at Freq (1)Jyphot.flux.density;em.radiofloat3C353Flux density of J1720-0058 (3C353) at Freq (1)Jyphot.flux.density;em.radiofloat3C380Flux density of J1829+4844 (3C380) at Freq (1)Jyphot.flux.density;em.radiofloat3C405Flux density of J1959+4044 (3C405) at Freq (1)Jyphot.flux.density;em.radioint3C444Flux density of J2214-1701 (3C444) at Freq (1)Jyphot.flux.density;em.radiofloat3C461Flux density of J2323+5848 (3C461) at Freq (1)Jyphot.flux.density;em.radiointErr[0.2/4.7] Percent post-fit standard deviation%stat.errorfloatJ/ApJS/230/7/sourcesSource list and flux calibrator suitability for VLA (tables 2 and 10)SimbadNameSimbad column added by the CDSmeta.idcharCommCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.id;meta.maincharprimaryONameAlternate namemeta.idcharBand4[*] *: Band 4 used for this source (1)meta.codecharBandP[*] *: Band P used for this source (1)meta.codecharBandL[*] *: Band L used for this source (1)meta.codecharBandS[*] *: Band S used for this source (1)meta.codecharBandC[*] *: Band C used for this source (1)meta.codecharBandX[*] *: Band X used for this source (1)meta.codecharBandKu[*] *: Band Ku used for this source (1)meta.codecharBandK[*] *: Band K used for this source (1)meta.codecharBandKa[*] *: Band Ka used for this source (1)meta.codecharBandQ[*] *: Band Q used for this source (1)meta.codecharLAS[0.6/3000] Largest Angular Sizearcsecphys.angSize;stat.maxfloatLink1meta.ref.urlcharVarVariability criterion (1)meta.code;src.varcharMaxFreq[0.2/30]? Maximum frequency (if null = All) (2)GHzstat.maxfloatnullablef_MaxFreq[A] A = Allmeta.codecharRange1[0] Lower baseline rangeinstr.baselinecharl_Range2Upper limit flag on Range2meta.code.errorcharRange2[0.05/5000] Upper baseline range (kilowavelenghts) to meet confusion, structure, and sensitive criteriainstr.baselinefloatNEDNED column added by the CDSmeta.ref.urlchar