J/AJ/140/1987ivo://CDS.VizieR/J/AJ/140/1987doi:10.26093/cds/vizier.51401987CDSHutchings J.B.Bianchi L.2012-08-29T13:25:43Z2012-08-08T14:28:04ZCDS support team

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

cds-question@unistra.frquasarsultraviolet-photometryvisible-astronomysloan-photometryWe discuss a sample of ~60000 objects from the combined Sloan Digital Sky Survey-Galaxy Evolution Explorer (SDSS-GALEX) database with UV-optical colors that should isolate QSOs in the redshift range 0.5-1.5. We use SDSS spectra of a subsample of ~4500 to remove stellar and galaxy contaminants in the sample to a very high level, based on the 7-band photometry. We discuss the distributions of redshift, luminosity, and reddening of the 19100 QSOs (~96%) that we estimate to be present in the final sample of 19812 point sources.2010AJ....140.1987Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/140/1987CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)http://www.galex.caltech.edu/ : the GALEX home page at Caltechhttp://www.sdss.org : SDSS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/140/1987https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/140/1987http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/140/1987https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/140/1987https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/140/1987http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/140/1987GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/140/1987/table2 (Catalog of 19812 QSO candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/140/1987/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/140/1987/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/140/1987/table2?GETtext/xml+votable180.050000true0.0447922-10.099150.0055555555555555564/512 514 600 1628 1710 5/137 138 1027 1028 1030 1036 1037 1040 1041 1042 1048 1050 1058 1061 1064 1074 1155 1157 1168 1171 1172 1178 1187 1189 1195 1197 1209 1212 1250 1251 1258 1553 1557 1559 1561 1565 1600 1627 1630 1636 1641 1650 1655 1656 1818 1822 1826 1827 1828 1830 1840 1841 1844 1845 1876 1879 1880 2053 2080 2082 2333 2335 2378 2406 2409 2411 2499 2518 2528 2530 2536 2545 2550 2555 2748 2866 2870 2981 2987 3095 3138 4303 4309 4312 4323 4324 4325 4326 4329 4374 4375 4377 4379 4380 4389 4416 4502 4504 4505 4506 4517 4518 4575 4596 4597 4601 4602 4631 4633 4634 4636 4645 4649 4652 4654 4693 4694 4695 4697 4698 4709 4710 4713 4714 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49093 49094 49095 49098 49104 49106 49120 49122 49128 49129 49130 49150 491512.040811542443644e-19 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/140/1987?format=asciiUVOpticaldefaultJ/AJ/140/1987/table2Catalog of 19812 QSO candidatesNUVGALEX NUV band magnitudemagphot.mag;em.UVfloate_gmagUncertainty in gmagmagstat.error;phot.mag;em.opt.BfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000SDSS Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000SDSS Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFUVGALEX FUV band magnitudemagphot.mag;em.UV.100-200nmfloate_FUVUncertainty in FUVmagstat.errorfloate_NUVUncertainty in NUVmagstat.errorfloatumagSDSS u band magnitudemagphot.mag;em.opt.Ufloate_umagUncertainty in umagmagstat.error;phot.mag;em.opt.UfloatgmagSDSS g band magnitudemagphot.mag;em.opt.BfloatrmagSDSS r band magnitudemagphot.mag;em.opt.Rfloate_rmagUncertainty in rmagmagstat.error;phot.mag;em.opt.RfloatimagSDSS i band magnitudemagphot.mag;em.opt.Ifloate_imagUncertainty in imagmagstat.error;phot.mag;em.opt.IfloatzmagSDSS z band magnitudemagphot.mag;em.opt.Ifloate_zmagUncertainty in zmagmagstat.error;phot.mag;em.opt.IfloatE(B-V)Foreground extinction value (1)magphot.color.excessfloatSloanDisplay the SDSS data for this quasarmeta.ref.urlchar