J/A+A/371/833ivo://CDS.VizieR/J/A+A/371/833doi:10.26093/cds/vizier.33710833CDSLehmann I.Hasinger G.Schmidt M.Giacconi R.Truemper J.,Zamorani G.Gunn J.E.Pozzetti L.Schneider D.P.Stanke T.,Szokoly G.Thompson D.Wilson G.2003-01-28T09:26:31Z2003-01-28T10:26:10ZCDS support team

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

cds-question@unistra.frx-ray-sourcessurveysquasarsThe ROSAT Ultra Deep Survey in the Lockman Hole consists of a sample of 94 X-ray sources reaching a limiting flux of 1.2x10-15erg/s/cm^2^ in the 0.5-2.0keV energy band. About 90% of the X-ray sources have been spectroscopically identified using low-resolution Keck spectra.2001A&A...371..833Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/371/833CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/371/833https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/371/833http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/371/833https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/371/833https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/371/833http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/371/833GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/371/833/table3 (X-ray source catalogue)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/371/833/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/371/833/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/371/833/table3?GETtext/xml+votable180.050000true163.1262557.6538330.005555555555555556Cone search capability for table J/A+A/371/833/table4 (Photometric and spectroscopic properties of optical counterparts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/371/833/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/371/833/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/371/833/table4?GETtext/xml+votable180.050000true163.12541757.6537220.005555555555555556ROSAT6/6047 6069https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/371/833?format=asciiX-raydefaultJ/A+A/371/833/table3X-ray source catalogueRXJSource namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLinkShow X-ray properties, and optical counterpartmeta.refcharSeqInternal source numbermeta.idintn_Seq[(H P12)] Sample (1)meta.notecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.maine_Pos1-Sigma error of the source positionarcsecstat.errorfloatn_Pos[HPR] Source position origin (2)meta.notecharoffHRIDistance of the source from the center of the HRI fieldarcmininstr.offsetfloatoffPSPCDistance of the source from the center of the PSPC fieldarcmininstr.offsetfloatFHRI? HRI flux in the 0.5-2.0keV band1e-17W.m**-2phot.flux;em.X-rayfloatnullablee_FHRI? HRI flux error1e-17W.m**-2stat.errorfloatnullableFPSPC? PSPC flux in the 0.5-2.0keV band1e-17W.m**-2phot.flux;em.X-rayfloatnullablee_FPSPC? PSPC flux error1e-17W.m**-2stat.errorfloatnullableHR1? HR1 hardness ratio (3)phot.flux;arith.ratiofloatnullablee_HR1? Error of HR1stat.errorfloatnullableJ/A+A/371/833/table4Photometric and spectroscopic properties of optical counterpartsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLinkShow X-ray properties, and optical counterpartmeta.refcharNameName of optical counterpartmeta.id;meta.maincharRmagR magnitudemagphot.mag;em.opt.RfloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainDeltaPosDistance to the X-ray source positionarcsecpos.angDistanceintn_DeltaPos[HPR] Source position origin (1)meta.notecharSXHRI or PSPC flux in the 0.5-2.0keV energy band1e-17W.m**-2phot.flux;em.X-rayfloatlog(FX/Fo)Logarithm of the X-ray to optical flux ratiophot.flux;arith.ratiofloatG[sg] Optical morphological parameter (2)src.class.starGalaxycharz? Redshift (3)src.redshiftfloatnullableVMAG? Absolute V magnitudemagphys.magAbs;em.optfloatnullablelogLX? Logarithm of the 0.5-2.0keV X-ray luminositylog(1e-07W)phys.luminosity;em.X-rayfloatnullableR-K'? R-K' colour indexmagphot.color;em.opt.R;em.IR.KfloatnullableClassOptical classification (4)src.classcharIDclassClassification scheme (5)meta.code.classchar