J/AJ/123/3018ivo://CDS.VizieR/J/AJ/123/3018doi:10.26093/cds/vizier.51233018CDSMiller N.A.Ledlow M.J.Owen F.N.Hill J.M.2023-04-06T16:50:48Z2006-11-26T16:51:22ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-sourcesredshiftedMultifiber optical spectroscopy has been performed on galaxies in the vicinity of strong, nearby radio galaxies. These radio galaxies were selected from the 3CR and B2 catalogs based on their exclusion from the Abell catalog, which is puzzling given the hypothesis that an external medium is required to confine the radio plasma of such galaxies. Velocities derived from the spectra were used to confirm the existence of groups and poor clusters in the fields of most of the radio galaxies. We find that all radio galaxies with classical Fanaroff-Riley type I morphologies prove to reside in clusters, whereas the other radio galaxies often appear to be recent galaxy-galaxy mergers in regions of low galaxy density. These findings confirm the earlier result that the existence of extended X-ray emission combined with a statistical excess of neighboring galaxies can be used to identify poor clusters associated with radio galaxies.2002AJ....123.3018Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/123/3018CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/36 : The Second Bologna Survey (Colla+ 1970-1974)J/MNRAS/216/173 : Bright extragalactic radio sources at 2.7 GHz (Wall+, 1985)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/123/3018https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/123/3018http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/123/3018https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/123/3018https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/123/3018http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/123/3018GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/123/3018/table1 (3C and B2 non-Abell cluster radio galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3018/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3018/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3018/table1?GETtext/xml+votable180.050000true9.2708325.698890.005555555555555556Cone search capability for table J/AJ/123/3018/table2 (3C/B2 cluster member velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3018/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3018/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3018/table2?GETtext/xml+votable180.050000true8.91291725.6788890.005555555555555556Cone search capability for table J/AJ/123/3018/table3 (Foreground and background galaxy velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/123/3018/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/123/3018/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/123/3018/table3?GETtext/xml+votable180.050000true9.16208325.7905560.0055555555555555565/583 2878 6/18 246 975 986 997 1671 1680 1682 2214-2215 2220 2226-2227 2230 2232-2233 2236 2249-2251 2254 2272-2273 2340-2341 2343 2361 2363 2414 4954 5229 5429 6293 7005 8704-8705 8926-8927 9009 9018 9104 9442-9443 9449 9453 9455 9464 9466 9612-9613 10343 10354-10355 10391 10397 10399 10434 10440 10442 10464-10465 10469 10471 12241 13122 13128 13528-13529 13564 19321 19432 19949 21133 23223 23469 25055 28409 31080 32058-32059 34104 35608 41051 43259 45446https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/123/3018?format=asciiOpticalRadiodefaultJ/AJ/123/3018/table13C and B2 non-Abell cluster radio galaxieszRedshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceRadio galaxy namemeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainObs[Yes No] Indicates whether spectroscopic observations of the radio galaxy field are included in this papermeta.notecharn_Obs[ab] Note on Obs (1)meta.notecharComRadio morphology and brief commentsmeta.notecharRefsReferences for the radio morphology, in refs.dat filemeta.bibcharJ/AJ/123/3018/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/AJ/123/3018/table23C/B2 cluster member velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceRadio galaxy name (G1) (1)meta.id;meta.maincharRAJ2000Galaxy right ascension (J2000.0) (G1)pos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000.0) (G1)pos.eq.dec;meta.maincz? This study heliocentric velocity from cross-correlation of emission lineskm/sphys.veloc;pos.heliocentricintnullablee_cz? rms uncertainty on czkm/sstat.errorintnullablen_cz[c] Note on cz (2)meta.notecharcz2? Prior studies heliocentric velocity, as reported in NEDkm/sphys.veloc;pos.heliocentricintnullablee_cz2? rms uncertainty on cz2km/sstat.errorintnullablen_cz2[a] a: Velocity data from Ledlow et al., 1996AJ....112..388Lmeta.notecharEmLinesEmission lines present (3)meta.notecharJ/AJ/123/3018/table3Foreground and background galaxy velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceRadio galaxy name (G1) (1)meta.id;meta.maincharRAJ2000Galaxy right ascension (J2000.0) (G1)pos.eq.ra;meta.mainDEJ2000Galaxy declination (J2000.0) (G1)pos.eq.dec;meta.maincz? This study heliocentric velocity from cross-correlation of emission lineskm/sphys.veloc;pos.heliocentricintnullablee_cz? rms uncertainty on czkm/sstat.errorintnullablen_cz[c] Note on cz (2)meta.notecharcz2? Prior studies heliocentric velocity, as reported in NEDkm/sphys.veloc;pos.heliocentricintnullablee_cz2? rms uncertainty on cz2km/sstat.errorintnullablen_cz2[a] a: Velocity data from Ledlow et al., 1996AJ....112..388Lmeta.notecharEmLinesEmission lines present (3)meta.notechar