J/ApJ/749/150ivo://CDS.VizieR/J/ApJ/749/150doi:10.26093/cds/vizier.17490150CDSLi I.H.Yee H.K.C.Hsieh B.C.Gladders M.2014-01-27T14:40:24Z2014-01-14T14:21:15ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsgalaxy-clustersredshiftedWe study the evolution of the red-galaxy fraction (f_red_) in 905 galaxy groups with 0.15<=z<0.52. The galaxy groups are identified by the "probability friends-of-friends" algorithm from the first Red-Sequence Cluster Survey (RCS1) photometric-redshift sample. There is a high degree of uniformity in the properties of the red sequence of the group galaxies, indicating that the luminous red-sequence galaxies in the groups are already in place by z~0.5 and that they have a formation epoch of z>~2. In general, groups at lower redshifts exhibit larger f_red_ than those at higher redshifts, showing a group Butcher-Oemler effect. We investigate the evolution of f_red_ by examining its dependence on four parameters, one of which can be classified as intrinsic and three of which can be classified as environmental: galaxy stellar mass (M_*_), total group stellar mass (M_*,grp_, a proxy for group halo mass), normalized group-centric radius (r_grp_), and local galaxy density ({Sigma}_5_).2012ApJ...749..150Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/749/150CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/158/161 : Photometric redshift catalog from the RCS (Hsieh+, 2005)J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/749/150https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/749/150http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/749/150https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/749/150https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/749/150http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/749/150GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/749/150/table1 (Catalogs of Red-Sequence Cluster Survey (RCS) galaxy groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/749/150/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/749/150/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/749/150/table1?GETtext/xml+votable180.050000true36.38958330.72572220.0055555555555555565/2342 2856 4443 4742 5674 7094 6/5673 5674 5675 5676 5678 5679 5760 5761 5763 5764 5765 5766 8337 8338 8339 8340 8342 8345 8348 9363 9366 9372 9373 9374 9393 10346 10389 10432 11403 11428 11430 11432 11433 17763 17768 17769 17771 17784 17860 18749 18751 18786 18792 18794 18795 18837 18880 18881 18951 18960 18962 18963 18966 22690 22691 22700 28371 28380 28382 28401 36343 36349https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/749/150?format=asciiOpticaldefaultJ/ApJ/749/150/table1Catalogs of Red-Sequence Cluster Survey (RCS) galaxy groupsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGroup identification (NNNN_NNN)meta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainzgrp[0.1/0.6] Group photometric redshiftsrc.redshift;pos.heliocentricfloate_zgrp[0.004/0.07] Uncertainty in zgrpstat.errorfloatNgal[5/53] Net "probability friends-of-friends" (pFoF) member count (1)meta.numberfloatMgrp[9/14]? log of total group stellar mass (2)log(solMass)phys.mass;pos.lgfloatnullableBgc[-216/2845] Richness parameter B_gc_ (3)src.class.richnessinte_Bgc[133/361] Uncertainty in Bgcstat.errorintRCSCross-match with the RCS photometric catalog (Cat. J/ApJS/158/161) within 15"meta.ref.urlintnullable