The UZC-SSRS2 group catalog J/AJ/123/2976 ivo://CDS.VizieR/J/AJ/123/2976 doi:10.26093/cds/vizier.51232976 CDS Ramella M. Geller M.J. Pisani A. da Costa L.N. 2023-04-06T16:50:48Z 2002-11-30T09:45:10Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr galaxy-clusters radial-velocity redshifted astronomical-object-identification We apply a friends-of-friends algorithm to the combined Updated Zwicky Catalog (UZC, Cat. <J/PASP/111/438> )and Southern Sky Redshift Survey (SSRS2, Cat. <J/AJ/116/1>) to construct a catalog of 1168 groups of galaxies; 411 of these groups have five or more members within the redshift survey. The group catalog covers 4.69 sr, and all groups exceed the number density contrast threshold, {delta}P/P=80. We demonstrate that the groups catalog is homogeneous across the two underlying redshift surveys; the catalog of groups and their members thus provides a basis for other statistical studies of the large-scale distribution of groups and their physical properties. The median physical properties of the groups are similar to those for groups derived from independent surveys, including the ESO Key Programme and the Las Campanas Redshift Survey. We include tables of groups and their members. 2002AJ....123.2976R https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/123/2976 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/A+A/391/35 : Compact Groups in the UZC galaxy sample (Focardi+, 2002) J/PASP/111/438 : Updated Zwicky catalog (UZC) (Falco+, 1999) J/AJ/116/1 : Southern Sky Redshift Survey (SSRS2) (Da Costa+, 1998) J/AJ/113/483 : Groups of Galaxies (Ramella+ 1997) J/ApJ/534/114 : RASSCALS: X-ray and optical study (Mahdavi+, 2000) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/123/2976 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/123/2976 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/123/2976 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/123/2976 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/123/2976 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/123/2976 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/123/2976/table1 (UZC-SSRS2 Group Catalog) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/2976/table1? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/2976/table1? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/2976/table1? GET text/xml+votable 180.0 50000 true 0.023333 26.190278 0.005555555555555556 Cone search capability for table J/AJ/123/2976/table2 (USGC Member Galaxies) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/2976/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/2976/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/2976/table2? GET text/xml+votable 180.0 50000 true 0.132083 26.305278 0.005555555555555556 5/555 557 568 602 1095 1238 1409 1443 2053 2066-2067 2098 2117 2130 2188 2366-2367 2595 2599 2608 2659 2744 4415 4581 4603 5055 5080 5089 5464 5497 5770 6237 6262-6263 6269 6377 6379 6399 6408 6411 6440 6442-6443 6486 6529 6575 6578 6598 6609 6776-6777 6867 6870 6928 6930-6932 6934-6935 6941 6964-6965 6976 6978-6979 6984 6986 7008-7009 7037 7063 7130 7871 8623 8635 8996 9060-9061 9155 9167 11007 11146 12036 6/9 14 32 34 45 50-51 56 140-141 148-150 167 173 203 225-226 238-239 242 248 548-549 556 558 562 568 572-573 575 580 583 588-589 615 620-621 626 632 647 653 670 688 692 697 700 723 727 733-735 738 743 745 747 749 751 754 757 928 941-943 948-949 951 953-955 1007 1023 2117 2128-2129 2131 2134 2142-2143 2145 2164 2166-2167 2169 2172 2175 2207 2210-2211 2214-2218 2225 2227 2233 2236 2246-2248 2250-2251 2254 2257-2261 2263-2266 2276 2306 2308-2309 2311 2320-2321 2324 2330 2332-2334 2339-2340 2346-2347 2350 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43992 43994-43996 43998 44000-44001 44003 44006 44010-44012 44016-44017 44020-44022 44026 44627 44636 44638-44639 44650 44707 44710 44809 44812 44815 44822 44826 44848 44866 44995 44998 45054-45055 46454 46460 46462 46519 46525 46545 46549 46562 46568-46569 46571-46572 46574 46709 46711 46715 46805 46807 46811 46832-46833 46855 46858 46860-46861 46864-46866 46880 46910 46913 46916 46931 46976 46984-46985 46987-46988 46991 46993 46996 47001 47003 47008-47009 47012 47021 47023 47027-47030 47032 47035 47038 47064 47066 47069 47077 48154 48233 48236 48344 48349-48351 48430 48440 48449 48452-48453 48455-48456 48458-48459 48462 48464 48484 48513 48516 48520 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/123/2976?format=ascii Optical default J/AJ/123/2976/table1 UZC-SSRS2 Group Catalog recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int USGC Identification number (G1) meta.id;meta.main char primary Num Number of member galaxies meta.number int RAJ2000 Hour of Right Ascension (J2000) pos.eq.ra;meta.main DEJ2000 Degree of Declination (J2000) pos.eq.dec;meta.main cz Mean redshift km/s phys.veloc;pos.heliocentric int e_cz The velocity dispersion in cz km/s stat.error int Rad Virial radius in units Mpc/h (2) Mpc phys.size.radius float log(M) Logarithm of the virial mass in solar units log(solMass) phys.mass float log(M/L) Log of the mass-to-light ratio in solar units log(Sun) phys.composition.massLightRatio float
J/AJ/123/2976/table2 USGC Member Galaxies recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int UZC Display the UZC Catalog (J/PASP/111/438) data meta.ref char USGC Identification number (G1) meta.id.parent char Num Number of member galaxies meta.number int RAJ2000 Hour of Right Ascension (J2000) pos.eq.ra;meta.main DEJ2000 Degree of Declination (J2000) pos.eq.dec;meta.main mag Magnitude (UNNN: Zwicky Bmag, SNNN: SSRS2 mag) mag phot.mag float HRV Heliocentric radial velocity km/s phys.veloc;pos.heliocentric int e_HRV Error in HRV km/s stat.error int
J/AJ/123/2976/table3 Cross-references for RPG97 Groups recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RPG97 The Ramella et al. (1997, Cat. <J/AJ/113/483>) group label (1) meta.id char USGC This paper group label (G1) meta.id;meta.main char
J/AJ/123/2976/table4 Cross-references for RASSCALS recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int RASSCALS The RASSCALS (Mahdavi et al., 2000, Cat. <J/ApJ/534/114>) label (1) meta.id char USGC This paper group label (G1) meta.id;meta.main char