J/A+A/534/A120ivo://CDS.VizieR/J/A+A/534/A120doi:10.26093/cds/vizier.35340120CDSTakey A.Schwope A.Lamer G.2017-12-06T07:37:44Z2011-10-19T17:04:28ZCDS support team

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

cds-question@unistra.frsurveysx-ray-sourcesgalaxiescatalogsWe present a catalogue of X-ray selected galaxy clusters and groups as a first release of the 2XMMi/SDSS Galaxy Cluster Survey. The survey is a search for galaxy clusters detected serendipitously in observations with XMM-Newton in the footprint of the Sloan Digital Sky Survey (SDSS). The main aims of the survey are to identify new X-ray galaxy clusters, investigate their X-ray scaling relations, identify distant cluster candidates, and study the correlation of the X-ray and optical properties. In this paper, we describe the basic strategy to identify and characterize the X-ray cluster candidates that currently comprise 1180 objects selected from the second XMM-Newton serendipitous source catalogue (2XMMi-DR3). Cross-correlation of the initial catalogue with recently published optically selected SDSS galaxy cluster catalogues yields photometric redshifts for 275 objects. Of these, 182 clusters have at least one member with a spectroscopic redshift from existing public data (SDSS-DR8). We developed an automated method to reprocess the XMM-Newton X-ray observations, determine the optimum source extraction radius, generate source and background spectra, and derive the temperatures and luminosities of the optically confirmed clusters. Here we present the X-ray properties of the first cluster sample, which comprises 175 clusters, among which 139 objects are new X-ray discoveries while the others were previously known as X-ray sources. For each cluster, the catalogue provides: two identifiers, coordinates, temperature, flux [0.5-2]keV, luminosity [0.5-2]keV extracted from an optimum aperture, bolometric luminosity L500, total mass M500, radius R500, and the optical properties of the counterpart. The first cluster sample from the survey covers a wide range of redshifts from 0.09 to 0.61, bolometric luminosities L500=1.9x10^42^-1.2x10^45^erg/s, and masses M500=2.3x10^13^-4.9x10^14^M_{sun}_. We extend the relation between the X-ray bolometric luminosity L500 and the X-ray temperature towards significantly lower T and L and still find that the slope of the linear L-T relation is consistent with values published for high luminosities.2011A&A...534A.120Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/534/A120CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/39 : XMM-Newton 2nd Serendipitous Source Catalogue (2XMM, 2007)IX/41 : XMM-Newton Serendipitous Source Catalogue 2XMMi-DR3 (XMM-SSC, 2010)http://www.sdss.org : SDSS Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/534/A120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/534/A120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/534/A120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/534/A120https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/534/A120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/534/A120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/534/A120/table2 (2XMMi/SDSS Galaxy Cluster Survey catalogue (I))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/534/A120/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/534/A120/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/534/A120/table2?GETtext/xml+votable180.050000true9.824890.700130.0055555555555555566/4327 4345 4352 4369 4672 4689 4750 4790 4831 4965 4977 5018 5033 5091 5284 5420 5423 5437 5471 5568 5576 5604 5629-5630 5675 5731-5732 5798 5864 5914 5922 5936 5974 5980 6051 6059 6098 6440 6470 6574 6641 7178 7309 7323 7345 7456 7552 8225 8845 8923 8927 8947 8956 9018 9149-9150 9415 9469 9895 10153 10321 10364 10391 10401 10434 10472 10474 10484 10549 10599 10694 10761 10905 10912 10979 11029 11081 11112 11130 11158 11314 11347 11352 11596 11806 11810 11845 17237 17503 17582 17812 17819 18069 18071 18084 18096 18112 18114 19097 23191 23208 25855 25919 25956 25974 25982 26022 26028 26169 26175 26289 26331 26427 26867 26975 26997 27004 27132 27256 27258-27259 27342-27343 27462 27466 27536 27664 27734 27742 27765 27857 27941 27955 27982 28124 28126 28141 28143 28148 28221 28230 28346 28517 28535 28621 31399 31401 36775 36792 45054https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/534/A120?format=asciiX-raydefaultJ/A+A/534/A120/table22XMMi/SDSS Galaxy Cluster Survey catalogue (I)NzsCluster members with spectra (4)meta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqX-ray detection number in the 2XMMi-DR3 (1)meta.id;meta.mainintn_2XMM[I] when 2XMMi release (Cat. IX/41)meta.notechar2XMMX-ray IAU source name (1)meta.id;meta.maincharObsIDXMM-Newton observation number (1)meta.numbercharn_zSimbad column added by the CDSmeta.code.qualcharscaleScale at the cluster redshiftkpc/arcsecinstr.scalefloatRapOptimal aperture radiuskpcphys.angSize;srcfloatR500Estimated radius R500kpcphys.size.radiusfloatTapX-ray spectroscopic temperature within RapkeVphys.temperaturefloatE_TapPositive error in TapkeVstat.error;stat.maxfloate_TapNegative error in TapkeVstat.errorfloatFapAperture X-ray flux in [0.5-2]keV1e-17W.m**-2phot.flux;em.X-rayfloatE_FapPositive error in Fap1e-17W.m**-2stat.error;stat.maxfloate_FapNegative error in Fap1e-17W.m**-2stat.errorfloatLapAperture X-ray luminosity in [0.5-2]keV1e+35Wphys.luminosity;em.X-rayfloatE_LapPositive error in Lap1e+35Wstat.error;stat.maxfloate_LapNegative error in Lap1e+35Wstat.errorfloatL500X-ray bolometric luminosity within R5001e+35Wphys.luminosity;em.X-rayfloate_L500Error in L5001e+35Wstat.errorfloatM500Mass within R5001e+13solMassphys.massfloate_M500Error in M5001e+13solMassstat.errorfloatnHGalactic HI column density1e+22cm**-2phys.columnDensity;pos.galacticfloatobjidCluster Id in optical catalogues (3)meta.idcharOffsetOptical/X-ray offsetkpcpos;arith.difffloatOptCatOptical cluster catalogue namesmeta.id;meta.datasetcharXrayClG? Alternative X-ray cluster name(s)meta.idcharRef? Reference of known X-ray clusters (5)meta.ref;pos.frameintnullableSimbadSimbad column added by the CDSmeta.refcharRAJ2000Right ascension of X-ray detection (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination of the X-ray detection (J2000) (1)degpos.eq.dec;meta.mainRAodegRight ascension of optical counterpart (J2000) (3)degpos.eq.raDEodegDeclination of the optical counterpart (J2000) (3)degpos.eq.deczRedshift (2)src.redshiftfloat