J/A+A/520/A42ivo://CDS.VizieR/J/A+A/520/A42doi:10.26093/cds/vizier.35200042CDSCucciati O.Marinoni C.Iovino A.Bardelli S.Adami C.Mazure A.,Scodeggio M.Maccagni D.Temporin S.Zucca E.De Lucia G.Blaizot J.,Garilli B.Meneux B.Zamorani G.Le Fevre O.Cappi A.Guzzo L.,Bottini D.Le Brun V.Tresse L.Vettolani G.Zanichelli A.Arnouts S.,Bolzonella M.Charlot S.Ciliegi P.Contini T.Foucaud S.,Franzetti P.Gavignaud I.Ilbert O.Lamareille F.McCracken H. J.,Marano B.Merighi R.Paltani S.Pella R.Pollo A.Pozzetti L.,Vergani D.Perez-Montero E.2017-12-22T05:33:38Z2010-09-30T08:58:31ZCDS support team

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

cds-question@unistra.frsurveysgalaxy-clustersredshiftedgalaxy-kinematicsWe present a homogeneous and complete catalogue of optical galaxy groups identified in the VIMOS-VLT Deep Survey (VVDS). We use mock catalogues extracted from the Millennium Simulation to study the potential systematics that might affect the overall distribution of the identified systems, and also to asses how well galaxy redshifts trace the line-of-sight velocity dispersion of the underlying mass overdensity. We train on these mock catalogues the adopted group-finding technique (the Voronoi-Delaunay Method, VDM), to recover in a robust and unbiased way the redshift and velocity dispersion distributions of groups and maximize the level of completeness (C) and purity (P) of the group catalogue. We identify 318(/144) VVDS groups with at least 2(/3) members within 0.2<=z<=1.0, globally with C=60% and P=50%. We use the group sample to study the redshift evolution of the fraction f_b_ of blue galaxies (U-B<=1) within 0.2<=z<=1 in both groups and in the whole ensemble of galaxies irrespectively of their environment.2010A&A...520A..42Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/520/A42CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/250 : The VIMOS VLT deep survey (VVDS-DEEP) (Le Fevre+ 2005)http://cencosw.oamp.fr : VVDS databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/520/A42https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/520/A42http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/520/A42https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/520/A42https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/520/A42http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/520/A42GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/520/A42/table4 (Location and properties of groups within 0.2<=z<=1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/520/A42/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/520/A42/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/520/A42/table4?GETtext/xml+votable180.050000true36.69958-4.352460.005555555555555556Cone search capability for table J/A+A/520/A42/table5 (Id and location of galaxies in the groups listed in Table 4)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/520/A42/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/520/A42/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/520/A42/table5?GETtext/xml+votable180.050000true36.65317-4.365060.0055555555555555566/17683 17686 17689 17692https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/520/A42?format=asciiOpticaldefaultJ/A+A/520/A42/table4Location and properties of groups within 0.2<=z<=1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGrIDGroup IDmeta.id;meta.mainintprimaryn_GrID[*] Detection with only flag 3-4 galaxies (1)meta.notecharRAJ2000Right ascension in decimal degrees (J2000) (2)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000) (3)degpos.eq.dec;meta.mainzRedshift (4)src.redshiftfloatNgalNumber of galaxiesmeta.numberintsigmaVelocity dispersion (5)km/sphys.veloc.dispersionintHPDet[H] High purity detection (6)meta.codecharSimbadSimbad column added by the CDScharJ/A+A/520/A42/table5Id and location of galaxies in the groups listed in Table 4GalIDGalaxy ID (CENCOS database) (1)meta.id;meta.mainlongrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainq_ZzFlag for quality redshift measurement (2)meta.code.qualintGrIDID of the group to which the galaxy belongs(3)meta.id.parentintNgalNumber of galaxies in the groupmeta.numberintSimbadSimbad column added by the CDScharzRedshiftsrc.redshiftfloat