Radio-loud and radio-quiet quasars sample J/MNRAS/461/2346 ivo://CDS.VizieR/J/MNRAS/461/2346 doi:10.26093/cds/vizier.74612346 CDS Gupta M. Sikora M. Nalewajko K. 2024-08-16T20:17:47Z 2018-03-12T10:36:43Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars infrared-photometry redshifted radio-sources We compare covering factors of circumnuclear dusty obscurers in radio-loud and radio-quiet quasars. The radio-loud quasars are represented by a sample of FR II quasars obtained by cross-matching a catalog of the FR II radio sources selected by van Velzen et al. with the SDSS DR7 catalog of quasars. Covering factors of FR II quasars are compared with covering factors of the radio-quiet quasars matched with them in redshift, black hole mass, and Eddington-ratio. We found that covering factors, proxied by the infrared-to-bolometric luminosity ratio, are on average slightly smaller in FR II quasars than in radio-quiet quasars, however, this difference is statistically significant only for the highest Eddington ratios. For both samples, no statistically significant dependence of a median covering factor on Eddington ratio, black hole mass, nor redshift can be claimed. 2016MNRAS.461.2346G https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/461/2346 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010) VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015) J/AJ/144/49 : Quasars from SDSS-DR7, WISE and UKIDSS surveys (Wu+, 2012) J/MNRAS/446/2985 : Double-lobed radio sources catalog (van Velzen+, 2015) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/461/2346 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/461/2346 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/461/2346 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/461/2346 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/461/2346 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/461/2346 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/461/2346/rlsample (FR II quasar catalogue) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/2346/rlsample? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/2346/rlsample? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/2346/rlsample? GET text/xml+votable 180.0 50000 true 206.5731 62.34597 0.005555555555555556 Cone search capability for table J/MNRAS/461/2346/rqsample (Radio-quiet (RQ) catalogue) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/2346/rqsample? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/2346/rqsample? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/2346/rqsample? 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Should Not be used for identification. meta.record int SDSS SDSS nanme from DR7 (HHMMSS.ss+DDMMSS.s) meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main z Redshift src.redshift float logMBH Fiducial virial black hole mass log(solMass) phys.mass float logEdd Eddington ratio based on the fiducial virial black hole mass phys.mass;arith.ratio float logLbol Bolometric luminosity log(W) phys.luminosity float W3mag Magnitude of WISE W3 band mag phot.flux.density;em.IR.8-15um float FluxW3 Flux of WISE W3 band mW.m**-2.Hz**-1 phot.flux.density;em.IR.8-15um double logv3Lv3 Luminosity of WISE W3 band log(W) phys.luminosity double LIR MIR luminosity log(W) phys.luminosity;em.IR double R Ratio of MIR luminosity to bolometric luminosity phys.luminosity;em.IR.MIR;arith.ratio double RArdeg Right ascension, geometrical centre of lobes (J2000) deg pos.eq.ra DErdeg Declination, geometrical centre of lobes (J2000) deg pos.eq.dec Flobe Total lobe flux Jy phot.flux.density;em.radio.750-1500MHz float Fcore ? Core flux (zero if no core is detected) Jy phot.flux.density;em.radio.750-1500MHz float nullable Sloan Display the online SDSS data for this QSO meta.ref.url char QSODR7 Display the SDSS QSO catalog, DR7 (Schneider et al., 2010, Cat. VII/260) meta.ref.url char Simbad Simbad column added by the CDS meta.ref.url char
J/MNRAS/461/2346/rqsample Radio-quiet (RQ) catalogue recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SDSS SDSS nanme from DR7 (HHMMSS.ss+DDMMSS.s) meta.id;meta.main char RAJ2000 Right ascension (J2000) deg pos.eq.ra;meta.main indexed DEJ2000 Declination (J2000) deg pos.eq.dec;meta.main indexed z Redshift src.redshift float logMBH Fiducial virial black hole mass log(solMass) phys.mass float logEdd Eddington ratio based on the fiducial virial black hole mass phys.mass;arith.ratio float logLbol Bolometric luminosity log(W) phys.luminosity float W3mag Magnitude of WISE W3 band mag phot.flux.density;em.IR.8-15um float FluxW3 Flux of WISE W3 band mW.m**-2.Hz**-1 phot.flux.density;em.IR.8-15um double logv3Lv3 Luminosity of WISE W3 band log(W) phys.luminosity double LIR MIR luminosity log(W) phys.luminosity;em.IR double R Ratio of MIR luminosity to bolometric luminosity phys.luminosity;em.IR.MIR;arith.ratio double Sloan Display the online SDSS data for this QSO meta.ref.url char QSODR7 Display the SDSS QSO catalog, DR7 (Schneider et al., 2010, Cat. VII/260) meta.ref.url char Simbad Simbad column added by the CDS meta.ref.url char