J/ApJS/172/368ivo://CDS.VizieR/J/ApJS/172/368doi:10.26093/cds/vizier.21720368CDSMainieri V.Hasinger G.Cappelluti N.Brusa M.Brunner H.Civano F.,Comastri A.Elvis M.Finoguenov A.Fiore F.Gilli R.Lehmann I.,Silverman J.Tasca L.Vignali C.Zamorani G.Schinnerer E.Impey C.,Trump J.Lilly S.Maier C.Griffiths R.E.Miyaji T.Capak P.,Koekemoer A.Scoville N.Shopbell P.Taniguchi Y.2008-05-06T21:58:09Z2008-05-06T21:55:51ZCDS support team

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

cds-question@unistra.frsurveysx-ray-sourcesactive-galactic-nucleiredshiftedWe present a detailed spectral analysis of pointlike X-ray sources in the XMM-Newton COSMOS field. Our sample of 135 sources only includes those that have more than 100 net counts in the 0.3-10keV energy band and have been identified through optical spectroscopy. The majority of the sources are well described by a simple power-law model with either no absorption (76%) or a significant intrinsic, absorbing column (20%). The remaining ~4% of the sources require a more complex modeling by incorporating additional components to the power law. For sources with more than 180 net counts (bright sample), we allowed both the photon spectral index Gamma and the equivalent hydrogen column NH to be free parameters. For fainter sources, we fix Gamma to the average value and allow NH to vary. The mean spectral index of the 82 sources in the bright sample is <Gamma>=2.06+/-0.08, with an intrinsic dispersion of ~0.24. Each of these sources has fractional errors on the value of Gamma below 20%. As expected, the distribution of intrinsic absorbing column densities is markedly different between AGNs with or without broad optical emission lines. We find within our sample four type 2 QSO candidates (L_X_>10^44^erg/s, NH>10^22^cm^-2^), with a spectral energy distribution well reproduced by a composite Seyfert 2 spectrum, that demonstrates the strength of the wide-field COSMOS XMM-Newton survey to detect these rare and underrepresented sources. In addition, we have identified a Compton-thick (NH>1.5x10^24^cm^-2^) AGN at z=0.1248. Its X-ray spectrum is well fitted by a pure reflection model and a significant Fe K{alpha} line at rest-frame energy of 6.4keV.2007ApJS..172..368Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/172/368CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2007)II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)J/ApJS/172/182 : Cluster of galaxies in XMM-COSMOS (Finoguenov+ 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/172/368https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/172/368http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/172/368https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/172/368https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/172/368http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/172/368GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/172/368/table1 (X-Ray Spectral Fit Parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/172/368/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/172/368/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/172/368/table1?GETtext/xml+votable180.050000true150.10541671.98088610.0055555555555555565/6814https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/172/368?format=asciiX-rayOpticaldefaultJ/ApJS/172/368/table1X-Ray Spectral Fit Parametersl_logNHLimit flag on NHmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintXMMCXMMC designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharXIDInternal reference number, from Hasinger et al., Cat. <J/ApJS/172/29>, XMMC NNNN in Simbadmeta.idintn_XID[i] Individual note (1)meta.notecharRAJ2000X-ray right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000X-ray declination (J2000.0)pos.eq.dec;meta.mainCountNet PN counts in 0.3-10keV energy bandctphot.count;em.X-rayintzSpectroscopic redshift of the most likely optical counterpart (2)src.redshiftfloatModelBest-fit model as discussed in Sect. 4stat.param;meta.modelledcharGamma? Power-law photon indexmeta.code;spect.indexfloatnullableGammaU? Upper value of Gamma intervaltime.interval;stat.maxfloatnullableGammaL? Lower value of Gamma intervaltime.interval;stat.minfloatnullablelogNH? Intrinsic hydrogen column densitylog(cm**-2)phys.columnDensityfloatnullablelogNHU? Upper value of NH intervallog(cm**-2)phys.columnDensityfloatnullablelogNHL? Lower value of NH intervallog(cm**-2)phys.columnDensityfloatnullableFXsX-ray flux from the spectral fit in the soft (0.5-2keV) rest-frame energy bandaW.m**-2phot.flux;em.X-rayfloatFXhX-ray flux from the spectral fit in the hard (2-10keV) rest-frame energy bandaW.m**-2phot.flux;em.X-rayfloatFXtotX-ray flux from the spectral fit in the total (0.5-10keV) rest-frame energy bandaW.m**-2phot.flux;em.X-rayfloatlogLXsAbsorption-corrected X-ray luminosities in the 0.5-2keV rest-frame energy bandlog(1e-07W)phys.luminosity;em.X-rayfloatlogLXhAbsorption-corrected X-ray luminosities in the 2-10keV rest-frame energy bandlog(1e-07W)phys.luminosity;em.X-rayfloatlogLXtotAbsorption-corrected X-ray luminosities in the 0.5-10keV rest-frame energy bandlog(1e-07W)phys.luminosity;em.X-rayfloat