J/MNRAS/483/3545ivo://CDS.VizieR/J/MNRAS/483/3545doi:10.26093/cds/vizier.74833545CDSGozaliasl G.Finoguenov A.Tanaka M.Dolag K.Montanari F.,Kirkpatrick C.C.Vardoulaki E.Khosroshahi H.G.Salvato M.Laigle C.,McCracken H.J.Ilbert O.Cappelluti N.Daddi E.Hasinger G.Capak P.,Scoville N.Z.Toft S.Civano F.Griffiths R.E.Balogh M.Li Y.,Ahoranta J.Mei S.Iovino A.Henriques B.M.B.Erfanianfar G.2024-08-19T20:15:59Z2022-08-11T12:46:06ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiescatalogsx-ray-sourcesredshiftedWe present the results of a search for galaxy clusters and groups in the ~2deg^2^ of the COSMOS field using all available X-ray observations from the XMM-Newton and Chandra observatories. We reach an X-ray flux limit of 3x10^-16^erg/cm^2^/s in the 0.5-2keV range, and identify 247 X-ray groups with M_200c_=8x10^12^-3x10^14^M_{sun}_ at a redshift range of 0.08=<z<1.53, using the multiband photometric redshift and the master spectroscopic redshift catalogues of the COSMOS. The X-ray centres of groups are determined using high-resolution Chandra imaging. We investigate the relations between the offset of the brightest group galaxies (BGGs) from halo X-ray centre and group properties and compare with predictions from semi-analytic models and hydrodynamical simulations. We find that BGG offset decreases with both increasing halo mass and decreasing redshift with no strong dependence on the X-ray flux and SNR. We show that the BGG offset decreases as a function of increasing magnitude gap with no considerable redshift-dependent trend. The stellar mass of BGGs in observations extends over a wider dynamic range compared to model predictions. At z<0.5, the central dominant BGGs become more massive than those with large offsets by up to 0.3dex, in agreement with model prediction. The observed and predicted log-normal scatter in the stellar mass of both low- and large-offset BGGs at fixed halo mass is ~0.3dex.2019MNRAS.483.3545Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/483/3545CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)J/ApJ/742/125 : Galaxies in X-ray groups. I. COSMOS membershipshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/483/3545https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/483/3545http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/483/3545https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/483/3545https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/483/3545http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/483/3545GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/483/3545/table2 (The revised catalogue of X-ray galaxy groups in 2deg^2^ of the COSMOS field, which was previously presented by Finoguenov et al. (2007ApJS..172..182F) and George et al. (2011ApJ...742..125G))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/483/3545/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/483/3545/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/483/3545/table2?GETtext/xml+votable180.050000true150.351561.6348050.0055555555555555565/6814 6/27245 27247 27344https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/483/3545?format=asciiX-raydefaultJ/MNRAS/483/3545/table2The revised catalogue of X-ray galaxy groups in 2deg^2^ of the COSMOS field, which was previously presented by Finoguenov et al. (2007ApJS..172..182F) and George et al. (2011ApJ...742..125G)IDCOSMOS galaxy group identification (COSMOS NNNNN)meta.id;meta.mainintzRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (1)degpos.eq.dec;meta.mainGroupGroup's identification flagsmeta.code.errorintM200Total mass of groups within R200 with respect to the critical density of the Universe (2)solMassphys.massdoublee_M200Error on M200 (1{sigma})solMassstat.errordoubleLx0.1-2.5keV rest-frame X-ray luminosity within R5001e-07Wphys.luminosity;em.X-raydoublee_LxError on Lx (1{sigma})1e-07Wstat.errordoubleR200Radius delimiting a sphere whose interior mean density is 200 times the critical density of the Universe (3)degphys.size.radiusfloatkTIGM temperature (4)keVphys.temperaturefloate_kTError on kT (1{sigma})keVstat.error;phys.energyfloatFluxGroup X-ray flux in the 0.5-2keV band within R500mW.m**-2phot.flux;em.X-raydoublee_FluxError on Flux (1{sigma})mW.m**-2stat.error;phot.fluxdoubleFSigSignificance of the X-ray flux estimate that is defined as the ratio of the X-ray flux to its errorphot.flux;em.X-rayfloat