J/MNRAS/371/221ivo://CDS.VizieR/J/MNRAS/371/221doi:10.26093/cds/vizier.73710221CDSGeorgakakis A.Nandra K.Laird E.S.Gwyn S.Steidel C.C.,Sarajedini V.L.Barmby P.Faber S.M.Coil A.L.Cooper M.C.Davis M.,Newman J.A.2024-07-03T20:14:05Z2007-07-09T16:09:12ZCDS support team

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

cds-question@unistra.frsurveysx-ray-sourcesredshiftedIn this paper, we discuss the optical and X-ray spectral properties of the sources detected in a single 200-ks Chandra pointing in the Groth-Westphal Strip region. A wealth of optical photometric and spectroscopic data are available in this field providing optical identifications and redshift determinations for the X-ray population. The optical photometry and spectroscopy used here are primarily from the Deep Extragalactic Evolutionary Probe 2 (DEEP2) survey with additional redshifts obtained from the literature. These are complemented with the deeper (r>>26mag) multiwaveband data (ugriz) from the Canada-France-Hawaii Telescope Legacy Survey to estimate photometric redshifts and to optically identify sources fainter than the DEEP2 magnitude limit (R_AB_>>24.5mag). We focus our study on the 2-10keV selected sample comprising 97 sources to the limit 8x10^-16^erg/s/cm^2^, this being the most complete in terms of optical identification rate (86 per cent) and redshift determination fraction (63 per cent; both spectroscopic and photometric).2006MNRAS.371..221Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/371/221CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/356/568 : Deep Chandra survey of the Groth Strip (Nandra+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/371/221https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/371/221http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/371/221https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/371/221https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/371/221http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/371/221GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/371/221/table2 (Chandra GWS X-ray/optical catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/371/221/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/371/221/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/371/221/table2?GETtext/xml+votable180.050000true214.175416752.52855830.0055555555555555566/11424-11425https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/371/221?format=asciiX-rayOpticaldefaultJ/MNRAS/371/221/table2Chandra GWS X-ray/optical catalogueDet[fshu] Detection flags (4)instr.bandwidthcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[NLA2005]Sequential number (cNNN)meta.recordcharRAJ2000X-ray right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainl_dOXLimit flag on dOXmeta.code.errorchardOX? X-ray/optical centroid offsetarcsecpos.angDistancefloatnullablel_ProbLimit flag on Probmeta.code.errorcharProb? Probability that the optical counterpart is spurious alignment%statfloatnullablel_RmagLimit flag in Rmagmeta.code.errorcharRmagR magnitude in AB systemmagphot.mag;em.opt.Rfloatr_Opt? Source of optical identification (1)meta.ref;pos.frameintnullablezspec? Spectroscopic redshiftsrc.redshiftfloatnullabler_zspec? Source of zspec (2)meta.ref;pos.frameintnullableClassOptical spectroscopic classification (3)meta.code.classcharzphot? Photometric redshiftsrc.redshiftfloatnullableE_zphot? Error on zphot (upper limit)stat.error;stat.maxfloatnullablee_zphot? Error on zphot (lower limit)stat.errorfloatnullablel_NHLimit flag on NHmeta.code.errorcharNH? Hydrogen column density1e+22cm**-2phys.columnDensityfloatnullableE_NH? Error on NH (upper limit)1e+22cm**-2stat.error;stat.maxfloatnullablee_NH? Error on NH (lower limit)1e+22cm**-2stat.errorfloatnullableLX? Unobscured 0.5-10keV X-ray luminosity1e+36Wphys.luminosity;em.X-rayfloatnullableXrayDisplay the X-ray data of paper Imeta.ref.urlchar