J/A+AS/143/465ivo://CDS.VizieR/J/A+AS/143/465CDSHawkins M.R.S.2012-11-13T12:57:34Z2000-10-16T15:04:55ZCDS support team

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

cds-question@unistra.frquasarsvisible-astronomyWide-band photometryredshiftedThe relation between quasar variability and parameters such as luminosity and redshift has been a matter of hot debate over the last few years with many papers on the subject. Any correlations which can be established will have a profound effect on models of quasar structure and evolution. The sample of quasars with redshifts in ESO/SERC field 287 contains over 600 quasars in the range 0<z<3.5 and is now large enough to bin in luminosity and redshift, and give definitive measures of the correlations. We find no significant correlation between amplitude and redshift, except perhaps at very low redshift, but an inverse correlation between amplitude and luminosity. This is examined in the context of various models for quasar variability.2000A&AS..143..465Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/143/465CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/143/465https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/143/465http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/143/465https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/143/465https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/143/465http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/143/465GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+AS/143/465/appen (Details of all three samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/143/465/appen?https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/143/465/appen?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/143/465/appen?GETtext/xml+votable180.050000true319.9329863-43.8040880.0055555555555555565/11659 11662 11681 11683-11684 6/46635 46654 46721-46723 46728-46729 46731 46740 46744-467464.0234554602041486e-19 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/143/465?format=asciiOpticaldefaultJ/A+AS/143/465/appenDetails of all three samplesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA1950Right ascension (1950)pos.eq.ra;meta.mainDE1950Declination (1950)pos.eq.dec;meta.mainBmagB magnitudemagphot.mag;em.opt.BfloatU-BU-B colour indexmagphot.color;em.opt.U;em.opt.BfloatdmagMagnitude amplitude (1)magarith.rate;src.var.amplitudefloatzRedshiftsrc.redshiftfloatBMagAbsolute B magnitudemagphys.magAbs;em.opt.BfloatS1[0/1] 1: QSO belongs to VAR samplemeta.codeintS2[0/2] 2: QSO belongs to UVX samplemeta.codeintS3[0/3] 3: QSO belongs to AMP samplemeta.codeint_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