J/A+A/462/449ivo://CDS.VizieR/J/A+A/462/449doi:10.26093/cds/vizier.34620449CDSBranchesi M.Gioia I.M.Fanti C.Fanti R.Cappelluti N.2010-09-24T16:23:09Z2007-11-03T21:28:38ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesWith the superb angular resolution of the Chandra Observatory, it is now possible to detect X-ray point sources, either embedded in galaxy clusters or along the cluster line of sight, which could not be resolved by previous instruments. This now allows studies of source counts in distant cluster fields. We want to analyze the inner region of clusters of galaxies to check for the presence of any over-density of X-ray point sources embedded in the gas diffuse emission. These point sources are possible AGN belonging to the clusters and could contaminate the cluster emission. We used a sample of 18 distant (0.25<z<1.01) galaxy clusters from the Chandra archive to construct the logN-logS, in both the soft and hard energy bands, for the X-ray point sources detected in the central cluster region to be compared with the counts of point sources detected in similarly deep fields without clusters.2007A&A...462..449Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/462/449CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/462/449https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/462/449http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/462/449https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/462/449https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/462/449http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/462/449GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/462/449/table1 (Cluster sample parameters and details of Chandra observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/462/449/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/462/449/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/462/449/table1?GETtext/xml+votable180.050000true235.366.266940.005555555555555556Cone search capability for table J/A+A/462/449/table2 (X-ray cluster region point sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/462/449/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/462/449/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/462/449/table2?GETtext/xml+votable180.050000true235.16416766.2870.0055555555555555566/7510 8282 8969 9272 9632 10387 10544 10992 11596 11632 11685 11791 11802 19846 22915 26753 26756 27009 28370 28376 49125https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/462/449?format=asciiX-raydefaultJ/A+A/462/449/table1Cluster sample parameters and details of Chandra observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id;meta.maincharprimaryzSpectroscopic redshift from literaturesrc.redshiftfloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainObsIDIdentification number of the observationmeta.id;obsintACIS[IS] Detector where the aimpoint lies (I=ACIS-I or S=ACIS-S)meta.idcharMode[VF ] Observation mode (F=FAINT or VF=VFAINT)instr.setupcharExpTimeExposure time corresponding to the nominal exposure filtered to exclude time periods of high backgroundkstime.duration;obs.exposurefloatNHGalactic hydrogen density column1e+20cm**-2phys.columnDensity;pos.galacticfloatLsoftX-ray luminosity in (0.5-2.0keV) band1e+35Wphys.luminosity;em.X-rayfloatLhardX-ray luminosity in (2.0-10.0keV) band1e+35Wphys.luminosity;em.X-rayfloatJ/A+A/462/449/table2X-ray cluster region point sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharRextSearch radiusarcsecstat.fit.paramintSeqSource identification number, in the cluster (1)meta.id;meta.mainintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainCsoft? Net counts in (0.5-2.0keV) energy bandctphot.count;em.X-rayfloatnullablef_Csoft[*] Flag for non-used sources (2)meta.codecharChard? Net counts in (2.0-7.0keV) energy bandctphot.count;em.X-rayfloatnullablef_Chard[*] Flag for non-used sources (2)meta.codecharSsoft? X-ray flux in (0.5-2.0keV) band (3)aW.m**-2phot.flux;em.X-rayfloatnullablee_Ssoft? rms uncertainty on SsoftaW.m**-2stat.errorfloatnullableCNHCorrection factor to be applied to the observed soft X-ray flux to obtain the Galactic absorption corrected X-ray fluxarith.factorfloatShard? X-ray flux in (2.0-10.0keV) band (3)aW.m**-2phot.flux;em.X-rayfloatnullablee_Shard? rms uncertainty on S2.0-10.0keVaW.m**-2stat.errorfloatnullable