J/ApJS/184/218ivo://CDS.VizieR/J/ApJS/184/218doi:10.26093/cds/vizier.21840218CDSLilly S.J.Le Brun V.Maier C.Mainieri V.Mignoli M.Scodeggio M.,Zamorani G.Carollo M.Contini T.Kneib J.-P.Le Fevre O.Renzini A.,Bardelli S.Bolzonella M.Bongiorno A.Caputi K.Coppa G.Cucciati O.,De La Torre S.De Ravel L.Franzetti P.Garilli B.Iovino A.,Kampczyk P.Kovac K.Knobel C.Lamareille F.Le Borgne J.-F.Pello R.,Peng Y.Perez-Montero E.Ricciardelli E.Silverman J.D.Tanaka M.,Tasca L.Tresse L.Vergani D.Zucca E.Ilbert O.Salvato M.Oesch P.,Abbas U.Bottini D.Capak P.Cappi A.Cassata P.Cimatti A.Elvis M.,Fumana M.Guzzo L.Hasinger G.Koekemoer A.Leauthaud A.Maccagni D.,Marinoni C.McCracken H.Memeo P.Meneux B.Porciani C.Pozzetti L.,Sanders D.Scaramella R.Scarlata C.Scoville N.Shopbell P.,Taniguchi Y.2022-12-20T07:22:39Z2010-02-15T14:15:43ZCDS support team

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

cds-question@unistra.frredshiftedgalaxiesvisible-astronomyapparent-magnitudeWe present spectroscopic redshifts of a large sample of galaxies with I_AB_<22.5 in the COSMOS field, measured from spectra of 10644 objects that have been obtained in the first two years of observations in the zCOSMOS-bright redshift survey. These include a statistically complete subset of 10109 objects. The average accuracy of individual redshifts is 110km/s, independent of redshift. The reliability of individual redshifts is described by a Confidence Class that has been empirically calibrated through repeat spectroscopic observations of over 600 galaxies. There is very good agreement between spectroscopic and photometric redshifts for the most secure Confidence Classes. For the less secure Confidence Classes, there is a good correspondence between the fraction of objects with a consistent photometric redshift and the spectroscopic repeatability, suggesting that the photometric redshifts can be used to indicate which of the less secure spectroscopic redshifts are likely right and which are probably wrong, and to give an indication of the nature of objects for which we failed to determine a redshift. Using this approach, we can construct a spectroscopic sample that is 99% reliable and which is 88% complete in the sample as a whole, and 95% complete in the redshift range 0.5<z<0.8. The luminosity and mass completeness levels of the zCOSMOS-bright sample of galaxies is also discussed.2009ApJS..184..218Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/184/218CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)J/A+A/510/A56 : zCOSMOS type-2 AGN (Bongiorno, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/184/218https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/184/218http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/184/218https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/184/218https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/184/218http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/184/218GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/184/218/table3 (zCOSMOS-bright 10k sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/184/218/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/184/218/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/184/218/table3?GETtext/xml+votable180.050000true150.502791941.877646110.0055555555555555565/6814 6/27245 27247 273442.0401237512456292e-19 2.706461185444514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/184/218?format=asciiOpticaldefaultJ/ApJS/184/218/table3zCOSMOS-bright 10k samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintzCOSMOSzCOSMOS identification numbermeta.id;meta.mainintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedz? Spectroscopic redshiftsrc.redshiftfloatnullableCClassConfidence class indicating reliability (1)meta.code.qualfloatImagHST F814W filter selection AB magnitudemagphot.mag;em.opt.IfloatMaskMask priority flag (2)meta.codeint