J/ApJS/95/345ivo://CDS.VizieR/J/ApJS/95/345doi:10.26093/cds/vizier.20950345CDSTaylor G.B.Vermeulen R.C.Pearson T.J.Readhead A.C.S.,Henstock D.R.Browne I.W.A.Wilkinson P.N.1998-06-18T09:18:41Z1998-06-18T09:18:34ZCDS support team

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

cds-question@unistra.frvery-long-baseline-interferometryquasarsradio-sourcesWe define the sample for the second Caltech-Jodrell Bank VLBI survey. This is a sample of 193 flat- or gigahertz-peaked-spectrum sources selected at 4850 MHz. This paper presents images of 91 sources with a resolution of ~1 mas, obtained using VLBI observations at 4992 MHz with a global array. The remaining images and the integrated radio spectra will be presented in a forthcoming paper by Henstock et al.1994ApJS...95..345Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/95/345CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/98/1 : First Caltech-Jodrell Bank VLBI Survey. I. (Polatidis+ 1995)J/ApJS/98/33 : First Caltech-Jodrell Bank VLBI Survey. II. (Thakkar+ 1995)J/ApJS/99/297 : First Caltech-Jodrell Bank VLBI Survey. III (Xu+ 1995)J/ApJS/100/1 : Second Caltech-Jodrell Bank VLBI Survey. II. (Henstock+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/95/345https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/95/345http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/95/345https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/95/345https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/95/345http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/95/345GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/95/345/table1 (The CJ2 sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/95/345/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/95/345/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/95/345/table1?GETtext/xml+votable180.050000true1.4882312538.33754680560.005555555555555556https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/95/345?format=asciiRadiodefaultJ/ApJS/95/345/table1The CJ2 samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceB1950 source name according to IAU conventionmeta.id;meta.maincharRAJ2000*Right ascension, J2000pos.eq.ra;meta.mainDEJ2000Declination sign, always blankpos.eq.dec;meta.mainS80cm*[]? Total flux density at 80 cmJyphot.flux.density;em.radio.200-400MHzfloatnullableS20cm*[]? Total flux density at 20 cmJyphot.flux.density;em.radio.1500-3000MHzfloatnullableS6cm*Total flux density at 6 cmJyphot.flux.density;em.radio.3-6GHzfloatS3.6cm*Total flux density at 3.6 cmJyphot.flux.density;em.radio.6-12GHzfloatIDopt*Optical identificationmeta.id.crosscharRmag*[]? Apparent R magnitudemagphot.mag;em.opt.Rfloatnullablen_z[f] Indicates a featureless spectrummeta.notecharz*[]? Redshiftsrc.redshiftfloatnullableDateDate of VLBI observationstime.epochcharJ/ApJS/95/345/table2Telescope characteristicsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelTelescope namemeta.id;instr.telcharCodeCode used (1)meta.codecharLocLocation of each telescopepos.earth;instr.obstycharDiamDiameter of each telescopemphys.size;instr.telintn_Diam[x] x when two valuesmeta.notecharDiam2? Diameter when two valuesmphys.size;instr.telintnullableJun1992["] Session Jun 1992 success (2)meta.notecharSep1992["] Session Sep 1992 success (2)meta.notecharMar1993["] Session Mar 1993 success (2)meta.notecharTsysKSystem temperature in K (3)Kinstr.det.noiseintTsysJySystem temperature in Jy (3)Jyinstr.det.noiseintSensSensitivity of the systemK/Jyinstr.sensitivityfloatJ/ApJS/95/345/table3*Map parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceB1950 source name according to IAU conventionmeta.id;meta.maincharDateDate of VLBI observationtime.epochcharDurDuration on source of VLBI observationmintime.intervalinta? FWHM of major axis of the restoring beammasphys.angSize;instr.beamfloatnullableb? FWHM of minor axis of the restoring beammasphys.angSize;instr.beamfloatnullablePA[-76/69]? Position angle of major axis, north through eastdegpos.posAngintnullableS4.85GHzn*? Peak flux density, naturally weighted mapmJyphot.flux.density;em.radio.3-6GHzintnullablee_S4.85GHzn*? Off source rms, naturally weighted mapmJystat.errorfloatnullableS4.85GHznC? First contour, percent of peak flux density%phot.flux.density;em.radio.3-6GHzfloatnullableS4.85GHzt*? Peak flux density, tapered mapmJyphot.flux.density;em.radio.3-6GHzintnullablee_S4.85GHzt*? Off source rms, tapered mapmJystat.errorfloatnullableS4.85GHztC? First contour, % of peak flux density%phot.flux.density;em.radio.3-6GHzfloatnullableJ/ApJS/95/345/table4Gaussian modelsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCJ2B1950 source name according to IAU conventionmeta.id;meta.maincharSFlux density of componentJyphot.flux.density;em.radio.3-6GHzfloatRad*Radius of componentmasphys.angSize;srcfloatTheta*Angle to componentdegpos.posAngfloataFWHM of major axis of componentmasphys.angSizefloatb/aAxial ratio of major to minor axis, b/aphys.size;arith.ratiofloatPhiPosition angle of major axis, North through Eastdegpos.posAngfloatAmp[]? Amplitude agreement factorstat.fit.paramfloatnullablePhase[]? Closure phase agreement factortime.phasefloatnullableTotal[]? Total agreement factorstat.fit.paramfloatnullable