J/ApJS/201/30ivo://CDS.VizieR/J/ApJS/201/30doi:10.26093/cds/vizier.22010030CDSCivano F.Elvis M.Brusa M.Comastri A.Salvato M.Zamorani G.,Aldcroft T.Bongiorno A.Capak P.Cappelluti N.Cisternas M.Fiore F.,Fruscione A.Hao H.Kartaltepe J.Koekemoer A.Gilli R.Impey C.D.,Lanzuisi G.Lusso E.Mainieri V.Miyaji T.Lilly S.Masters D.,Puccetti S.Schawinski K.Scoville N.Z.Silverman J.Trump J.Urry M.,Vignali C.Wright N.J.2017-12-07T07:27:00Z2012-11-26T09:24:57ZCDS support team

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

cds-question@unistra.frastronomical-object-identificationsurveysactive-galactic-nucleix-ray-sourcesinfrared-photometrygalaxiesvisible-astronomyThe Chandra COSMOS Survey (C-COSMOS) is a large, 1.8Ms, Chandra program that has imaged the central 0.9deg^2^ of the COSMOS field down to limiting depths of 1.9x10^-16^erg/cm^2^/s in the soft (0.5-2keV) band, 7.3x10^-16^erg/cm^2^/s in the hard (2-10keV) band, and 5.7x10^-16^erg/cm^2^/s in the full (0.5-10keV) band. In this paper we report the i, K, and 3.6um identifications of the 1761 X-ray point sources. We use the likelihood ratio technique to derive the association of optical/infrared counterparts for 97% of the X-ray sources. For most of the remaining 3%, the presence of multiple counterparts or the faintness of the possible counterpart prevented a unique association. For only 10 X-ray sources we were not able to associate a counterpart, mostly due to the presence of a very bright field source close by. Only two sources are truly empty fields. The full catalog, including spectroscopic and photometric redshifts and classification described here in detail, is available online.2012ApJS..201...30Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/201/30CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)J/A+A/542/A16 : X-ray detection of radio-selected galaxies (Ranalli+, 2012)J/ApJ/742/61 : Redshift of AGN from XMM- and C-COSMOS (Salvato+, 2011)J/ApJ/716/348 : The XMM-Newton survey of the COSMOS field (Brusa+, 2010)J/ApJ/725/480 : Stellar X-ray sources in the COSMOS survey (Wright+, 2010)J/A+A/497/635 : XMM-Newton survey in COSMOS field (Cappelluti+, 2009)J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)J/ApJS/184/158 : Chandra COSMOS survey I. (Elvis+, 2009)http://irsa.ipac.caltech.edu/data/COSMOS/ : COSMOS archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/201/30https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/201/30http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/201/30https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/201/30https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/201/30http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/201/30GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/201/30/catalog (Chandra-COSMOS identification catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/201/30/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/201/30/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/201/30/catalog?GETtext/xml+votable180.050000true150.170462.21880.0055555555555555565/6814 6/272475.0053231178386525e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/201/30?format=asciiX-rayOpticalInfrareddefaultJ/ApJS/201/30/catalogChandra-COSMOS identification catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCXOCIAU identificator (HHMMSS.s+DDMMSS; J2000) as in Paper I (Elvis et al. 2009, J/ApJS/184/158) (5)meta.id.crosscharf_CXOC[*+] Problem with CXOC name (5)meta.codecharCID[1/22962] Chandra identifier, CID, according to Elvis et al. 2009, Cat. J/ApJS/184/158 (1)meta.id;meta.mainintRAJ2000X-ray right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000X-ray declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFsoftX-ray 0.5-2 keV flux (in cgs unit) (2)mW.m**-2phot.flux;em.X-raydoubleFhardX-ray 2-10 keV flux (in cgs unit) (2)mW.m**-2phot.flux;em.X-raydoubleFfullX-ray 0.5-10 keV flux (in cgs unit) (2)mW.m**-2phot.flux;em.X-raydoubleRACdeg? RA of the opt/IR counterpart, as determined in this paper (J2000)degpos.eq.ranullableDECdeg? Dec of the opt/IR counterpart, as determined in this paper (J2000)degpos.eq.decnullableCOSMOS[136961/2791454]? Optical identifier from Capak et al. catalog (Cat. II/284)meta.id.crossintnullableI09ID[89570/1733715]? Optical id from the revised catalog (Ilbert et al. 2009ApJ...690.1236I)meta.id.crossintnullableRAOdeg? Coordinate of the optical counterpart (J2000)degpos.eq.ranullableDEOdeg? Coordinate of the optical counterpart (J2000)degpos.eq.decnullableimag? i(AB) band magnitude (at 3" aperture) from Capak et al. 2007, Cat. II/284magphot.mag;em.opt.Ifloatnullablee_imag? i(AB) band magnitude errormagstat.error;phot.mag;em.opt.IfloatnullableRAKdeg? RA of the K-band counterpart (J2000)degpos.eq.ranullableDEKdeg? Dec of the K-band counterpart (J2000)degpos.eq.decnullableKmag? K(AB) band magnitude (at 3" aperture) from McCracken et al. 2010ApJ...708..202Mmagphot.mag;em.IR.Kfloatnullablee_Kmag? K(AB) band magnitude errormagstat.error;phot.mag;em.IR.KfloatnullableRAIdeg? RA of the IRAC 3.6 micron counterpart (J2000)degpos.eq.ranullableDEIdeg? Dec of the IRAC 3.6 micron counterpart (J2000)degpos.eq.decnullableF3.6? Spitzer/IRAC 3.6 micron flux from Sanders et al. 2007ApJS..172...86SuJyphot.mag;em.IR.3-4umdoublenullablee_F3.6? 3.6 micron flux erroruJystat.errorfloatnullablefID[1/100]? Final identification flag (1=secure, 10=ambiguous, blank=unidentified, 100=subthreshold)meta.codeintnullablef*[1/10]? Flag indicating a star (1=spectroscopic confirmed star, 10=photometric star, 100=visually identified star)meta.codeintnullableof[1]? Off-nuclear flag to isolate the seven off-nuclear sources from Mainieri et al. 2010A&A...514A..85Mmeta.codeintnullablezsp[0/5.3]? Spectroscopic redshift from the optical, K or 3.6um catalogssrc.redshiftfloatnullablef_zsp[0/2]? Spectroscopic classification (1=BLAGN, 2=not-BLAGN, 0=star)meta.codeintnullableq_zsp[3/9]? Spectroscopic redshift quality (3)meta.code.qualintnullablen_zsp[1/8]? Spectroscopic redshift origin (4)meta.noteintnullablezph[0/6.84]? Photometric redshift from Salvato et al. 2011ApJ...742...61Ssrc.redshiftfloatnullablef_zph[1/3]? Photometric redshift classification from the SED fitting (1=unobscured, 2=obscured, 3=galaxy)meta.codeintnullableXMMC[1/70250]? XMM identifier from Brusa et al. 2010, Cat. J/ApJ/716/348/Cappelluti, 2009, Cat. J/A+A/497/635meta.id.crossintnullableS11Display data from Salvato et al., 2011, Cat. J/ApJ/742/61meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar