J/ApJ/671/1355ivo://CDS.VizieR/J/ApJ/671/1355doi:10.26093/cds/vizier.16711355CDSTaylor G.B.Healey S.E.Helmboldt J.F.Tremblay S.Fassnacht C.D.,Walker R.C.Sjouwerman L.O.Pearson T.J.Readhead A.C.S.Weintraub L.,Gehrels N.Romani R.W.Michelson P.F.Blandford R.D.Cotter G.2017-06-30T05:49:17Z2010-04-29T12:06:33ZCDS support team

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

cds-question@unistra.frradio-sourcesquasarsbl-lacertae-objectsredshiftedWe examine the radio properties of EGRET-detected blazars observed as part of the VLBA Imaging and Polarimetry Survey (VIPS). VIPS has a flux limit roughly an order of magnitude below the MOJAVE survey and most other samples that have been used to study the properties of EGRET blazars. At lower flux levels, radio flux density does not directly correlate with gamma-ray flux density. We do find that the EGRET-detected blazars tend to have higher brightness temperatures, greater core fractions, and possibly larger than average jet opening angles. A weak correlation is also found with jet length and with polarization. All of the well-established trends can be explained by systematically larger Doppler factors in the gamma-ray-loud blazars, consistent with the measurements of higher apparent velocities found in monitoring programs carried out at radio frequencies above 10 GHz.2007ApJ...671.1355Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/671/1355CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)J/ApJS/175/97 : CGRaBS: survey of {gamma}-ray blazar candidates (Healey+, 2008)J/MNRAS/326/1455 : The CLASS blazar survey. I. (Marcha+, 2001)J/MNRAS/329/877 : The CLASS blazar survey. II. (Caccianiga+, 2002)J/MNRAS/348/937 : The CLASS blazar survey. III. (Caccianiga+, 2004)J/ApJ/590/109 : Gamma-ray blazar in northern sky (Sowards-Emmerd+, 2003)J/ApJS/171/61 : All-Sky Survey of Flat-Spectrum Radio Sources (Healey+ 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/671/1355https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/671/1355http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/671/1355https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/671/1355https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/671/1355http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/671/1355GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/671/1355/table1 (EGRET Identifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/671/1355/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/671/1355/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/671/1355/table1?GETtext/xml+votable180.050000true115.8354.80.005555555555555556Cone search capability for table J/ApJ/671/1355/VIPS (VIPS source properties and brightness)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/671/1355/VIPS?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/671/1355/VIPS?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/671/1355/VIPS?GETtext/xml+votable180.050000true121.75422222251.2940750.0055555555555555566/4695 4822 5423 5816 5817 6069 6088 6646 6647 7004 7255 7426 8514 9442 9460 9723 10064 10189 10201 10213 10224 10250 10337 10340 10524 10527 10548 10551 10910 10932 26614 26620 28083 28479 28492 28493https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/671/1355?format=asciiOpticalRadiodefaultJ/ApJ/671/1355/table1EGRET IdentificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint3EG3EG name based on EGRET coordinates (JHHMM+DDMM)meta.id.crosscharVIPStVIPS name based on CLASS coordinates (JHHMM+DDMM)meta.id;meta.maincharF8.4GHz8.4GHz flux density from CLASSmJyphot.flux.density;em.radio.6-12GHzfloatalphaSpectral index between 1.4GHz-NVSS (Condon 1998, Cat. VIII/65) and 8.4GHz-CLASS [S({nu}){prot.to}{vu}^{alpha}^]spect.index;em.radio.750-1500MHzfloatDTSMeasure of the positional correspondence of the radio source to the peak of gamma-ray flux (1)pos;arith.difffloatFoMFigure of merit (Sowards-Emmerd et al. 2003, Cat. J/ApJ/590/109) of radio-{gamma} associationmeta.code.qualfloatCode[1/3] Association code (2)src.classintmag? Optical magnitude of the host galaxymagphot.mag;em.optfloatnullablez? Redshift from Veron-Cetty and Veron (2006, Cat. VII/248)src.redshiftfloatnullableTypeflat-spectrum radio quasar (FSRQ) or BL Lac object (BLL)src.classcharCGRaBSCGRaBS if the source is included in the CBRaBS sample (Healey et al., 2008, J/ApJS/175/97)meta.notecharVIPSVIPS source name (JHHMMm+DDMM), as in table2meta.idchar_RAPosition form 3EG catalog (right ascension part)degpos.eq.ra;meta.main_DEPosition form 3EG catalog (declination part)degpos.eq.dec;meta.mainJ/ApJ/671/1355/VIPSVIPS source properties and brightnessl_DcLimit flag on Dcmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqVIPS source numbermeta.id;meta.mainintVIPSVIPS source name (JHHMMm+DDMM)meta.id;meta.maincharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainDateUT Datetime.epochnullableF8.5GHzFlux density at 8.5GHz from the CLASS surveymJyphot.flux.density;em.radio.6-12GHzfloatF5GHzTotal cleaned flux density from the 5GHz VLBA mapmJyphot.flux.density;em.radio.3-6GHzfloatF5maxPeak flux density from the 5GHz VLBA map (in mJy/beam)mJyphot.flux.density;em.radio.3-6GHzfloatnoiserms noise of the 5GHz VLBA image (in mJy/beam)mJyphot.flux.density;em.radio.3-6GHzfloatNgcNumber of dominant Gaussian components (1)meta.numberintTypeSource type derived from the automated Gaussian component classification (2)src.classcharRadMean radius (3)masphys.angSize;stat.meanfloatDmax? Maximum separation among the dominant Gaussian componentsmaspos.angDistancefloatnullablePAjet? Jet position angle (measured from north through east)degpos.posAngfloatnullableF5c5GHz flux density of the coremJyphot.flux.density;em.radio.3-6GHzfloatDcFWHM of the core component estimated using a circular Gaussian fit to the visibility datamasphys.angSizefloatl_TBcLimit flag on TBcmeta.code.errorcharTBcMean brightness temperature of the coreKphys.temperature;stat.meandoubleTBj? Mean brightness temperature of the brightest component outside the coreKphys.temperature;stat.meandoublenullableDPA? Difference between the outer and inner position angles of the jet for sources with more than two jet componentsdegpos;arith.difffloatnullablePsi? Jet opening half-angle for sources with more than two jet componentsdegpos.posAngfloatnullable