J/ApJ/511/612ivo://CDS.VizieR/J/ApJ/511/612doi:10.26093/cds/vizier.15110612CDSGoldschmidt P.Kukula M. J.Miller L.Dunlop J. S.2013-03-06T06:17:41Z2000-02-24T08:06:53ZCDS support team

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

cds-question@unistra.frradio-galaxiesquasarsradio-sourcessurveysWe have made radio observations of 87 optically selected quasars at 5 GHz with the VLA in order to measure the radio power for these objects and hence determine how the fraction of radio-loud quasars varies with redshift and optical luminosity. The sample has been selected from the recently completed Edinburgh Quasar Survey and covers a redshift range of 0.3{<=}z{<=}1.5 and an optical absolute magnitude range of (-26.5){<=}M_B_{<=}(-23.5) (h=1/2, q_o_=1/2). We have also matched other existing surveys with the Faint Images of the Radio Sky at Twenty Centimeters and NRAO VLA Sky Survey radio catalogs and combined these data so that the optical luminosity-redshift plane is now far better sampled than before. We have fitted a model to the probability of a quasar being radio-loud as a function of absolute magnitude and redshift, and from this model we infer the radio-loud and radio-quiet optical luminosity functions. The radio-loud optical luminosity function is featureless and flatter than the radio-quiet one. It evolves at a marginally slower rate if quasars evolve by density evolution, but the difference in the rate of evolutions of the two different classes is much less than was previously thought.1999ApJ...511..612Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/511/612CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/511/612https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/511/612http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/511/612https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/511/612https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/511/612http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/511/612GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/511/612/table1 (Radio Fluxes and positions for the Edinburgh Quasars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/511/612/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/511/612/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/511/612/table1?GETtext/xml+votable180.050000true187.7621448-4.4766150.0055555555555555566/25722 25723 25759 25803 25804 25810 25811 25814 25836 25843 25844 25864 25869 25880 25881 25901 25904 25912 25915 25924 25926 25951 25953 25954 25955 25956 25966 25972 25988 25989 25992 25994 25997 25998 26014 26016 26019 26020 26021 26026 26027 26029 26032 26033 26034 26048 26138 26149 26151 26153 26161 26166 26172 26175 26181 26182 26186 26187 26195 26196 26198 26204 26207 26211 26223 26224 26225 26227 26228 26230 26245 26247 26259 26269 26312 26313 26370 26371 263733.313034785154005e-24 5.5658981862942334e-24https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/511/612?format=asciiRadiodefaultJ/ApJ/511/612/table1Radio Fluxes and positions for the Edinburgh QuasarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject Edinburgh Quasar Survey namemeta.id;meta.maincharn_Name[a] note on Name (1)meta.notecharRAB1950Right Ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainBmag? B band magnitude (2)magphot.mag;em.opt.BfloatnullableB-V? (B-V) color (2)magphot.color;em.opt.B;em.opt.Vfloatnullablez? Redshift (2)src.redshiftfloatnullablel_S5GHzlimit on 5GHzmeta.code.errorcharS5GHz5 GHz flux densitymJyphot.flux.density;em.radio.3-6GHzdoublel_S8.4GHzlimit on 8.4GHzmeta.code.errorcharS8.4GHz? 8.4 GHz flux density (3)mJyphot.flux.density;em.radio.6-12GHzfloatnullable_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed