J/ApJ/833/194ivo://CDS.VizieR/J/ApJ/833/194doi:10.26093/cds/vizier.18330194CDSWilson M.L.Zabludoff A.I.Ammons S.M.Momcheva I.G.Williams K.A.,Keeton C.R.2019-02-04T08:52:16Z2017-05-29T07:23:40ZCDS support team

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

cds-question@unistra.frgravitational-lensingspectroscopyredshiftedgalaxy-kinematicsgalaxy-clustersWith a large, unique spectroscopic survey in the fields of 28 galaxy-scale strong gravitational lenses, we identify groups of galaxies in the 26 adequately sampled fields. Using a group-finding algorithm, we find 210 groups with at least 5 member galaxies; the median number of members is 8. Our sample spans redshifts of 0.04<=z_grp_<=0.76 with a median of 0.31, including 174 groups with 0.1<z_grp_<0.6. The groups have radial velocity dispersions of 60<={sigma}_grp_<=1200km/s with a median of 350km/s. We also discover a supergroup in field B0712+472 at z=0.29 that consists of three main groups. We recover groups similar to ~85% of those previously reported in these fields within our redshift range of sensitivity and find 187 new groups with at least five members. The properties of our group catalog, specifically, (1) the distribution of {sigma}_grp_, (2) the fraction of all sample galaxies that are group members, and (3) the fraction of groups with significant substructure, are consistent with those for other catalogs. The distribution of group virial masses agrees well with theoretical expectations. Of the lens galaxies, 12 of 26 (46%) (B1422+231, B1600+434, B2114+022, FBQS J0951+2635, HE0435-1223, HST J14113+5211, MG0751+2716, MGJ1654+1346, PG 1115+080, Q ER 0047-2808, RXJ1131-1231, and WFI J2033-4723) are members of groups with at least five galaxies, and one more (B0712+472) belongs to an additional, visually identified group candidate. There are groups not associated with the lens that still are likely to affect the lens model; in six of 25 (24%) fields (excluding the supergroup), there is at least one massive ({sigma}_grp_>=500km/s) group or group candidate projected within 2' of the lens.2016ApJ...833..194Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/833/194CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/219/29 : Spectrosc. redshifts in strong lens fields (Momcheva+, 2015)J/A+A/566/A1 : Flux & volume limited groups for SDSS galaxies (Tempel+, 2014)J/ApJ/781/2 : Redshifts of 1151 galaxies from SDSS (Ammons+, 2014)J/ApJ/753/121 : zCOSMOS 20k sample group catalog to z<~1.2 (Knobel+, 2012)J/MNRAS/422/25 : SDSS DR7 groups, clusters and filaments (Smith+, 2012)J/AJ/142/170 : ALFALFA: the {alpha}.40 HI source catalog (Haynes+, 2011)J/A+A/507/671 : Cluster RDCS J1252.9-2927 (z=1.2) spectroscopy (Tanaka+, 2009)J/MNRAS/395/255 : Compact groups of galaxies in SDSS DR6 (McConnachie+, 2009)J/MNRAS/392/135 : Galaxy clusters from SDSS (Lopes+, 2009)J/ApJS/176/374 : WARPS-II Cluster catalog. VII. (Horner+, 2008)J/ApJ/663/164 : VLT and ACS observations in RDCS J1252.9-2927 (Demarco+, 2007)J/ApJS/167/1 : Galaxy groups and clusters from SDSS (Berlind+, 2006)J/ApJ/645/955 : ChaMP serendipitous galaxy cluster survey (Barkhouse+, 2006)J/ApJ/641/169 : Spectroscopy in lens fields (Momcheva+, 2006)J/AJ/130/968 : SDSS-C4 cluster catalog (Miller+, 2005)J/ApJ/552/427 : Galaxy groups a intermediate redshifts (Carlberg+, 2001)J/ApJS/130/237 : LCRS loose groups of galaxies (Tucker+, 2000)J/ApJS/125/35 : ACO clusters redshifts & velocity dispersions (Struble+ 1999)J/ApJ/496/39 : Properties of poor groups of galaxies. I. (Zabludoff+ 1998)J/AJ/113/483 : Groups of Galaxies (Ramella+ 1997)J/A+A/310/8 : The ESO Nearby Abell Cluster Survey I. (Katgert+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/833/194https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/833/194http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/833/194https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/833/194https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/833/194http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/833/194GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/833/194/table1 (Algorithmically identified groups with >=5 members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table1?GETtext/xml+votable180.050000true109.036546.88140.005555555555555556Cone search capability for table J/ApJ/833/194/table2 (Group catalog supplement: algorithmically identified groups with 3-4 members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table2?GETtext/xml+votable180.050000true109.315247.09620.005555555555555556Cone search capability for table J/ApJ/833/194/table3 (Group catalog supplement: supergroup and its substructures in Field b0712)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table3?GETtext/xml+votable180.050000true108.993147.1480.005555555555555556Cone search capability for table J/ApJ/833/194/table4 (Group catalog supplement: visually identified candidate groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table4?GETtext/xml+votable180.050000true108.98947.1460.005555555555555556Cone search capability for table J/ApJ/833/194/table5 (Algorithmic group members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table5?GETtext/xml+votable180.050000true109.0240846.842290.005555555555555556Cone search capability for table J/ApJ/833/194/table6 (Supergroup members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table6?GETtext/xml+votable180.050000true109.2619247.099090.005555555555555556Cone search capability for table J/ApJ/833/194/table7 (Visually identified candidate group members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/833/194/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/833/194/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/833/194/table7?GETtext/xml+votable180.050000true109.3274147.171290.0055555555555555565/4782 6773 6/4596 6217 6220 6926 6927 6948 6949 8707 8912 8914 9386 9387 9729 9831 9837 10743 11339 11342 11361 11364 11426 16644 22580 22581 25245 25480 26030 26369 26372 27126 27127 27132 27133 27232 27234 28245 28247 31613 31615 35218 40272 40274 43945 43947 43948 43950 44673 44676 47424 48388 48389https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/833/194?format=asciidefaultJ/ApJ/833/194/table1Algorithmically identified groups with >=5 membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifiermeta.id;obs.fieldcharGroup[0/31] Group number within Fieldmeta.idintf_Group[a] a=lens groupmeta.codecharNm[3/66] Number of group membersmeta.numberintzgrp[0.02/0.8] Redshift of the groupsrc.redshift;pos.heliocentricfloate_zgrp[0/0.002]? Negative uncertainty on zgrp (G1)stat.errorfloatnullableE_zgrp[0/0.003]? Positive uncertainty on zgrp (G1)stat.error;stat.maxfloatnullableRAJ2000Right ascension (J2000)degpos.eq.ra;meta.maine_RAJ2000[0.001/0.09]? RAdeg negative uncertainty (G1)degstat.error;pos.eq.rafloatnullableE_RAJ2000[0.001/0.1]? RAdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDEJ2000Declination (J2000)degpos.eq.dec;meta.maine_DEJ2000[0.001/0.06]? DEdeg negative uncertainty (G1)degstat.error;pos.eq.decfloatnullableE_DEJ2000[0.001/0.06]? DEdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDist[0.1/18] Projected distance (R) between the lens and the group centroidarcminpos.angDistance;pos.lgfloatsigma[20/1200] Group dispersion velocitykm/sphys.veloc.dispersioninte_sigma[3/460]? Negative uncertainty on sigma (G1)km/sstat.errorintnullableE_sigma[10/420]? Positive uncertainty on sigma (G1)km/sstat.error;stat.maxintnullableMvir[1/145]? Virial mass (G2)1e+13solMassphys.massfloatnullablee_Mvir[0.0003/75]? Negative uncertainty on Mvir (G1)1e+13solMassstat.errorfloatnullableE_Mvir[0.4/63]? Positive uncertainty on Mvir (G1)1e+13solMassstat.error;stat.maxfloatnullablervir[0.03/2.9] Virial radius r_vir_Mpcphys.size.radiusfloatFlagFlag(s) on Group (G3)meta.code.errorcharMatchGroups in the literature that have a redshift within 3{sigma}_z_ of a group in our catalog (1)meta.bibcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/833/194/table2Group catalog supplement: algorithmically identified groups with 3-4 membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifiermeta.id;obs.fieldcharGroup[0/31] Group number within Fieldmeta.idintf_Group[a] a=lens groupmeta.codecharNm[3/66] Number of group membersmeta.numberintzgrp[0.02/0.8] Redshift of the groupsrc.redshift;pos.heliocentricfloate_zgrp[0/0.002]? Negative uncertainty on zgrp (G1)stat.errorfloatnullableE_zgrp[0/0.003]? Positive uncertainty on zgrp (G1)stat.error;stat.maxfloatnullableRAJ2000Right ascension (J2000)degpos.eq.ra;meta.maine_RAJ2000[0.001/0.09]? RAdeg negative uncertainty (G1)degstat.error;pos.eq.rafloatnullableE_RAJ2000[0.001/0.1]? RAdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDEJ2000Declination (J2000)degpos.eq.dec;meta.maine_DEJ2000[0.001/0.06]? DEdeg negative uncertainty (G1)degstat.error;pos.eq.decfloatnullableE_DEJ2000[0.001/0.06]? DEdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDist[0.1/18] Projected distance (R) between the lens and the group centroidarcminpos.angDistance;pos.lgfloatsigma[20/1200] Group dispersion velocitykm/sphys.veloc.dispersioninte_sigma[3/460]? Negative uncertainty on sigma (G1)km/sstat.errorintnullableE_sigma[10/420]? Positive uncertainty on sigma (G1)km/sstat.error;stat.maxintnullableMvir[1/145]? Virial mass (G2)1e+13solMassphys.massfloatnullablee_Mvir[0.0003/75]? Negative uncertainty on Mvir (G1)1e+13solMassstat.errorfloatnullableE_Mvir[0.4/63]? Positive uncertainty on Mvir (G1)1e+13solMassstat.error;stat.maxfloatnullablervir[0.03/2.9] Virial radius r_vir_Mpcphys.size.radiusfloatFlagFlag(s) on Group (G3)meta.code.errorcharMatchGroups in the literature that have a redshift within 3{sigma}_z_ of a group in our catalog (1)meta.bibcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/833/194/table3Group catalog supplement: supergroup and its substructures in Field b0712recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroup[0/3] Group number within Fieldmeta.idintNm[39/230] Number of group membersmeta.numberintzgrp[0.28/0.3] Redshift of the groupsrc.redshift;pos.heliocentricfloate_zgrp[0.0002/0.0003]? Negative uncertainty on zgrpstat.errorfloatnullableE_zgrp[0.0002/0.0004]? Positive uncertainty on zgrpstat.error;stat.maxfloatnullableRAJ2000Right ascension (J2000)degpos.eq.ra;meta.maine_RAJ2000[0.009/0.02]? Negative uncertainty on RAdegdegstat.error;pos.eq.rafloatnullableE_RAJ2000[0.01/0.02]? Positive uncertainty on RAdegdegstat.error;stat.maxfloatnullableDEJ2000Declination (J2000)degpos.eq.dec;meta.maine_DEJ2000[0.007/0.009]? Negative uncertainty on DEdegdegstat.error;pos.eq.decfloatnullableE_DEJ2000[0.007/0.009]? Positive uncertainty on DEdegdegstat.error;stat.maxfloatnullableDist[0.9/12] Projected distance (R) between the lens and the group centroidarcminpos.angDistance;pos.lgfloatsigma[330/1170] Group dispersion velocitykm/sphys.veloc.dispersioninte_sigma[30/60]? Negative uncertainty on sigmakm/sstat.errorintnullableE_sigma[30/60]? Positive uncertainty on sigmakm/sstat.error;stat.maxintnullableMvir[3/120]? Virial mass when >=10^13^M_{sun}_1e+13solMassphys.massfloatnullablee_Mvir[0.9/14]? Negative uncertainty on Mvir1e+13solMassstat.errorfloatnullableE_Mvir[1/12]? Positive uncertainty on Mvir1e+13solMassstat.error;stat.maxfloatnullablervir[0.7/2.5] Virial radius r_vir_Mpcphys.size.radiusfloatJ/ApJ/833/194/table4Group catalog supplement: visually identified candidate groupse_zgrp[0/0.002]? Negative uncertainty on zgrp (G1)stat.errorfloatnullableE_zgrp[0/0.002]? Positive uncertainty on zgrp (G1)stat.error;stat.maxfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifiermeta.id;obs.fieldcharGroupGroup number within Field (not continued from tables 1 and 2)meta.idcharf_Group[a] a=lens groupmeta.codecharNm[3/28] Number of group membersmeta.numberintzgrp[0.1/0.7] Redshift of the groupsrc.redshift;pos.heliocentricfloatRAJ2000Right ascension (J2000)degpos.eq.ra;meta.maine_RAJ2000[0.006/0.05]? RAdeg negative uncertainty (G1)degstat.error;pos.eq.rafloatnullableE_RAJ2000[0.006/0.06]? RAdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDEJ2000Declination (J2000)degpos.eq.dec;meta.maine_DEJ2000[0.004/0.06]? DEdeg Negative uncertainty (G1)degstat.error;pos.eq.decfloatnullableE_DEJ2000[0.004/0.06]? DEdeg positive uncertainty (G1)degstat.error;stat.maxfloatnullableDist[1/11] Projected distance (R) between the lens and the group centroidarcminpos.angDistance;pos.lgfloatsigma[220/1010] Group dispersion velocitykm/sphys.veloc.dispersioninte_sigma[90/570]? Negative uncertainty on sigma (G1)km/sstat.errorintnullableE_sigma[50/710]? Positive uncertainty on sigma (G1)km/sstat.error;stat.maxintnullableMvir[1/81]? Virial mass (G2)1e+13solMassphys.massfloatnullablee_Mvir[0.1/39]? Negative uncertainty on Mvir (G1)1e+13solMassstat.errorfloatnullableE_Mvir[0.8/51]? Positive uncertainty on Mvir (G1)1e+13solMassstat.error;stat.maxfloatnullablervir[0.4/2.3] Virial radius r_vir_Mpcphys.size.radiusfloatFlagFlag(s) on Group (G3)meta.code.errorcharJ/ApJ/833/194/table5Algorithmic group membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifiermeta.id;obs.fieldcharGroupGroup identifier (0-31) or supergroup identifier (0-3) or candidate group identifier (i-iv)meta.id;meta.maincharz[0.02/0.8] Galaxy redshiftsrc.redshiftdoublee_z[/0.002] Uncertainty in zstat.error;src.redshiftdoubleRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/833/194/table6Supergroup membersFieldField identifiermeta.id;obs.fieldcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroupGroup identifier (0-31) or supergroup identifier (0-3) or candidate group identifier (i-iv)meta.id;meta.maincharz[0.02/0.8] Galaxy redshiftsrc.redshiftdoublee_z[/0.002] Uncertainty in zstat.error;src.redshiftdoubleRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJ/833/194/table7Visually identified candidate group membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField identifiermeta.id;obs.fieldcharGroupGroup identifier (0-31) or supergroup identifier (0-3) or candidate group identifier (i-iv)meta.id;meta.maincharz[0.02/0.8] Galaxy redshiftsrc.redshiftdoublee_z[/0.002] Uncertainty in zstat.error;src.redshiftdoubleRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlchar