J/MNRAS/439/611ivo://CDS.VizieR/J/MNRAS/439/611doi:10.26093/cds/vizier.74390611CDSWang L.Yang X.Shen S.Mo H.J.Van Den Bosch F.C.Luo W.Wang Y.,Lau E.T.Wang Q.D.Kang X.Li R.2024-08-08T20:12:54Z2016-07-15T12:07:28ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesWe use ROSAT All Sky Survey broad-band X-ray images and the optical clusters identified from Sloan Digital Sky Survey Data Release 7 to estimate the X-ray luminosities around ~65000 candidate clusters with masses >~10^13^h-1^M_{sun}_ based on an optical to X-ray (OTX) code we develop. We obtain a catalogue with X-ray luminosity for each cluster. This catalogue contains 817 clusters (473 at redshift z<=0.12) with signal-to-noise ratio >3 in X-ray detection. We find about 65% of these X-ray clusters have their most massive member located near the X-ray flux peak; for the rest 35%, the most massive galaxy is separated from the X-ray peak, with the separation following a distribution expected from a Navarro-Frenk-White profile. We investigate a number of correlations between the optical and X-ray properties of these X-ray clusters, and find that the cluster X-ray luminosity is correlated with the stellar mass (luminosity) of the clusters, as well as with the stellar mass (luminosity) of the central galaxy and the mass of the halo, but the scatter in these correlations is large. Comparing the properties of X-ray clusters of similar halo masses but having different X-ray luminosities, we find that massive haloes with masses >~10^14^h^-1^M_{sun}_ contain a larger fraction of red satellite galaxies when they are brighter in X-ray. An opposite trend is found in central galaxies in relative low-mass haloes with masses <~10^14^h^-1^M_{sun}_ where X-ray brighter clusters have smaller fraction of red central galaxies. Clusters with masses >~10^14^h^-1^M_{sun}_ that are strong X-ray emitters contain many more low-mass satellite galaxies than weak X-ray emitters. These results are also confirmed by checking X-ray clusters of similar X-ray luminosities but having different characteristic stellar masses. A cluster catalogue containing the optical properties of member galaxies and the X-ray luminosity is available at http://gax.shao.ac.cn/data/Group.html.2014MNRAS.439..611Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/439/611CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)II/294 : SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+ 2009)J/MNRAS/292/419 : Cooling flows in 207 clusters of galaxies (White+, 1997)J/MNRAS/389/1074 : LX-{sigma} relation of galaxy clusters (Shen+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/439/611https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/439/611http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/439/611https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/439/611https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/439/611http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/439/611GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/439/611/catalog (SDSS-RASS catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/439/611/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/439/611/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/439/611/catalog?GETtext/xml+votable180.050000true134.482473.180950.0055555555555555562/33 107 3/65 67-69 72 75 78-80 83 85-86 93-94 101-102 112 129-131 136 138-140 143-144 146 152-153 160 162-164 167 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31429-31431 31488 31550-31551 31594 31598-31599 31710 31742 32397 32399 32402-32403 32406 32421-32423 32425-32427 32460 32462 32484 32486 32492 32494 32497 32499 32672 32674 32678 32686 36607 36702-36703 36715 36717-36719 36723 36732-36734 36759 36761 36763 36773-36775 36788 36790 36792-36794 36796 36801-36803 36812 36816 36818 36832 36861-36863 40959 45043 45045-45047 45052-45054 48983 49005-49007 49009-49011 49020-49022 49077-49079 49091 49097-49099 49104-49106 49112 49124 49126 49128-49130 49149-49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/439/611?format=asciiX-raydefaultJ/MNRAS/439/611/catalogSDSS-RASS catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupOptical Group IDmeta.id.parentintGalaxyCentral galaxy ID of this groupmeta.id;meta.mainintNYUVAGCCentral galaxy ID in NYUVAGC catalog (1)meta.idintflagb1[0/11] multi-z flag b1 (2)meta.code.errorintflagb2[0/4] multi-z flag b2 (3)meta.code.errorintflagb3[0/1] multi-z flag b3 (4)meta.code.errorintMSID[1/4] Mass sequence ID for central, the k-th most massive galaxy in a group, k<=4meta.id;phys.mass;obs.sequenceintO-XOffset between the optical galaxy and X-ray cluster centerarcminpos.angDistancedoubleRAJ2000Right ascension of the X-ray cluster (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination of the X-ray cluster (J2000)degpos.eq.dec;meta.mainindexedCRateX-ray photons count rate (in 0.1-2.4keV) in detection radius 0.5*r200ct/sphot.count;em.X-raydoublee_CRateError for the count ratect/sstat.errordoubleRXRadius of the extended X-ray source, here Rx = 0.5*r200arcminphys.angSize;srcfloatFluxX-ray flux1e-15W.m**-2phot.flux;em.X-raydoubleLXX-ray luminosity of a cluster in 0.1-2.4keV1e+37Wphys.luminosity;em.X-raydoubleLBBolometric luminosity (derived from LX)1e+37Wphys.luminosity;em.opt.BdoubleExtCorrbeta model correction factor for the 'missing' fraction of the total projected source emission (ext_corr)arith.factordoublesigmaVelocity dispersion derived from the optical halo mass (5)km/sphys.veloc.dispersiondoubleNgalNumber of galaxies in the groupmeta.numberintTGas temperature of the group derived from the velocity dispersion sigma (6)keVphys.temperaturefloatlogNHGalactic hydrogen column densitylog(cm**-2)phys.columnDensity;pos.galacticdoubleAexpoAverage exposure time on the detectionstime.duration;obs.exposure;stat.meanfloatzOptical spectroscopic redshift of the central galaxysrc.redshiftdoubleApr500Aperture of r500arcminphys.angSize;instr.fovdoubleS/NSignal to noise ratio of the X-ray detectionstat.snrdoublefmultiFlux fraction of a X-ray source in a multi-cluster detection, see Eq.5 in this paperphot.flux;em.X-raydoubleSloanDisplay the SDSS data for this clustermeta.ref.urlchar