J/MNRAS/448/2644ivo://CDS.VizieR/J/MNRAS/448/2644doi:10.26093/cds/vizier.74482644CDSHolland J.G.Bohringer H.Chon G.Pierini D.2024-08-14T20:20:16Z2015-12-18T12:26:00ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesGalaxy clusters' structure, dominated by dark matter, is traced by member galaxies in the optical and hot intracluster medium (ICM) in X-rays. We compare the radial distribution of these components and determine the mass-to-light ratio versus system mass relation. We use 14 clusters from the REXCESS sample which is representative of clusters detected in X-ray surveys. Photometric observations with the Wide Field Imager on the 2.2m Max-Planck-Gesellschaft/European Southern Observatory telescope are used to determine the number density profiles of the galaxy distribution out to r_200_. These are compared to electron density profiles of the ICM obtained using XMM-Newton, and dark matter profiles inferred from scaling relations and a Navarro-Frenk-White model. While red sequence galaxies trace the total matter profile, the blue galaxy distribution is much shallower. We see a deficit of faint galaxies in the central regions of massive and regular clusters, and strong suppression of bright and faint blue galaxies in the centres of cool-core clusters, attributable to ram pressure stripping of gas from blue galaxies in high-density regions of ICM and disruption of faint galaxies due to galaxy interactions. We find a mass-to-light ratio versus mass relation within r_200_ of (3.0+/-0.4)x10^2^hM_{sun}_/L_{sun} at 10^15^M_{sun}_ with slope 0.16+/-0.14, consistent with most previous results.2015MNRAS.448.2644Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/2644CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/448/2644https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/448/2644http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/448/2644https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/448/2644https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/448/2644http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/448/2644GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/448/2644/table1 (Overview of the REXCESS clusters analysed in this paper)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/448/2644/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/448/2644/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/448/2644/table1?GETtext/xml+votable180.050000true1.5125-34.7241670.0055555555555555566/16411 20507 20624 21870 34496 35755 39068 39462 45336 45942 46687 46855 48735 48738https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/448/2644?format=asciiX-raydefaultJ/MNRAS/448/2644/table1Overview of the REXCESS clusters analysed in this paperrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRXCRXC designationmeta.id;meta.maincharAbellAbell cluster name (1)meta.idcharRAJ2000Right ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainzRedshift (1)src.redshiftfloatLXX-ray luminosity (1)1e+37Wphys.luminosity;em.X-rayfloatr500Radius at which the mean mass density is 500 times the critical density at the cluster redshift (2)kpcphys.size.radiusfloatM500Mass within r500 (3)1e+14solMassphys.massfloatD[D] D for disturbed (2)meta.codecharCC[CC ] CC for cool-core (2)meta.codecharM[M] M for massivemeta.codecharIDID used in figures in Section 3.9.4 to distinguish between the clusters in the samplemeta.idcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/448/2644/tableb1NFW fitting resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRXCRXC designation (JHHMM.m+DDMM)meta.id;meta.maincharFiltFiltermeta.id;instr.filtercharbetaOuter slopespect.indexfloate_betarms uncertainty on betastat.errorfloatS0Surface density (in R_500_^-3^)src.densityfloate_S0rms uncertainty on S0stat.errordoubleSbgNFWConstant density component from an NFW fit (in R_500_^-2^)src.densityfloate_SbgNFWrms uncertainty on SbgNFWstat.errorfloatJ/MNRAS/448/2644/tablec1Background count density measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRXCRXC designation (JHHMM.m+DDMM)meta.id;meta.maincharFiltFiltermeta.id;instr.filtercharSbgsSimple count density (S_bg-simple_)arcmin**-2src.densityfloate_Sbgsrms uncertainty on Sbgsarcmin**-2stat.errorfloatalphaStandard error measured from sectors ({alpha}_Sbg-sector_)arcmin**-2stat.errorfloatSbgNFWConstant density component from an NFW fitarcmin**-2src.densityfloate_SbgNFWrms uncertainty on SbgNFWarcmin**-2stat.errorfloatSbgs/SbgNFWSimple count density to constant density component ratiosrc.densityfloatNote[*] Note on RXC J2023.0-2056 bright blue filter (1)meta.notechar