J/MNRAS/370/1223ivo://CDS.VizieR/J/MNRAS/370/1223doi:10.26093/cds/vizier.73701223CDSBrough S.Forbes D.A.Kilborn V.A.Couch W.2024-07-03T20:13:40Z2007-01-11T21:15:58ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesradial-velocitygalaxy-kinematicsHere, we present an investigation of the properties of 15 nearby galaxy groups and their constituent galaxies. The groups are selected from the Group Evolution Multiwavelength Study (GEMS) and all have X-ray as well as wide-field neutral hydrogen (HI) observations. Group membership is determined using a friends-of-friends algorithm on the positions and velocities from the 6-degree Field Galaxy Survey and NASA/IPAC Extragalactic Database. For each group we derive their physical properties using this membership, including: velocity dispersions (sigma_v_), virial masses (M_V_), total K-band luminosities [L_K_(Tot)] and early-type fractions (f_early_) and present these data for the individual groups.2006MNRAS.370.1223Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/370/1223CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/86 : Groups of Galaxies. I. Nearby Groups (Huchra+ 1982)VII/145 : Nearby Galaxies Catalogue (NBG) (Tully 1988)VII/161 : Nearby Galaxies (Schmidt+ 1993)J/A+AS/139/97 : HI properties of nearby galaxies (Karachentsev+, 1999)J/ApJ/543/178 : Nearby Optical Galaxy (NOG) sample (Giuricin+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/370/1223https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/370/1223http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/370/1223https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/370/1223https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/370/1223http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/370/1223GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/370/1223/table3 (Dynamical parameters of groups derived using FOF (friends-of-friends) membership and distances)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/370/1223/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/370/1223/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/370/1223/table3?GETtext/xml+votable180.050000true21.13629179.49688890.005555555555555556Cone search capability for table J/MNRAS/370/1223/tablea1 (Details of the galaxies in each group)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/370/1223/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/370/1223/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/370/1223/tablea1?GETtext/xml+votable180.050000true20.36416679.17980560.0055555555555555565/4581 6183 6237 9197 6/17472 18238 18370 18800 24727 24757 24770 24777-24779 24957 25632 25634 26307 26313 26315-26318 26323 26329-26331 26336 26340 26343 33954 34250-34251 34272-34273 34276 36230-36231 36236 36244-36245 36247 36253 36288 36290 36586 36765-36767 36785 36787 36793 36796-36798 38265 38268 38347 38350 38369 46525 46568 46571 46985 46987-46988 46990 47008-47009 47012https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/370/1223?format=asciiOpticaldefaultJ/MNRAS/370/1223/table3Dynamical parameters of groups derived using FOF (friends-of-friends) membership and distancesMV/LKMass-to-light ratioSunphys.composition.massLightRatiointe_MV/LK1sigma error on MV/LKSunstat.error;phys.abundintf(early)Early-type galaxies fractionmeta.numberfloate_f(early)Poissonian error on f(early)stat.errorfloatExtentMaximum projected radial extentMpcspect.dopplerVeloc;stat.maxfloatDistDistance used for the dynamical parameter determinationMpcpos.distancefloatr_DistReference for Dist (2)meta.bibcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupGroup namemeta.idcharprimaryNmNumber of members in each group as defined by the FOF algorithmmeta.numberintNmKNumber of members with MK<=20 (1)meta.numberintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.main<vel>Mean group velocitykm/sphys.veloc;stat.meaninte_<vel>sigma/sqrt(N) error on <vel>km/sstat.errorintsigmaVelocity dispersionkm/sphys.veloc.dispersioninte_sigma1sigma error on sigmakm/sstat.errorintr500r500 radius, calculated from the velocity dispersionMpcphys.angSize;srcfloate_r5001sigma error on r500Mpcstat.errorfloatMvirVirial mass1e+13solMassphys.massfloate_Mvir1sigma error on Mvir1e+13solMassstat.errorfloattcCrossing time (in units of 1/H_0_)time.crossing;arith.ratiofloate_tc1sigma error on tcstat.errorfloatLKTotal K-band luminosity1e+11solLumphys.luminosity;em.IRfloate_LK1sigma error on LK1e+11solLumstat.errorfloatJ/MNRAS/370/1223/tablea1Details of the galaxies in each grouprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name (1)meta.id;meta.mainchar6dF6dF designation (JHHMMSSs-DDMMSS)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.main<vel>Mean velocitykm/sphys.veloc;stat.meanintKmagK magnitudemagphot.mag;em.IR.Kfloate_Kmagrms uncertainty on Kmagmagstat.error;phot.mag;em.IR.KfloatRgcGroup-centric radius from the centre calculated by the FOF algorithmMpcphys.size.radiusfloatTType? Morphological T-typesrc.morphfloatnullableSimbadSimbad column added by the CDScharNEDSimbad column added by the CDScharGroupGroup designationmeta.idchar