J/MNRAS/274/75ivo://CDS.VizieR/J/MNRAS/274/75doi:10.26093/cds/vizier.72740075CDSCrawford C.S.Edge A.C.Fabian A.C.Allen S.W.Bohringer H.Ebeling H.,McMahon R.G.Voges W.2024-06-25T20:17:22Z2005-06-19T13:43:37ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesredshiftedWe report results from the second stage of an optical follow-up study aimed at determining new redshifts for clusters of galaxies selected from the ROSAT All-Sky Survey. We review the optical properties of all the clusters obtained so far in this programme, which comprises 71 clusters up to a redshift of 0.3. The fraction of central galaxies exhibiting optical line emission and an excess blue continuum is 34%, consistent with smaller, previous, X-ray samples. There is no trend for this fraction to increase with redshift, although we find a clear tendency for the strongest line emitters to have the bluest continua. The probability of the presence of line emission and an excess blue continuum is increased for those galaxies with associated radio sources, although the strength of these features does not appear to be related to the power of the radio emission.1995MNRAS.274...75Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/274/75CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/274/75https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/274/75http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/274/75https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/274/75https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/274/75http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/274/75GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/274/75/table1 (New redshifts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/274/75/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/274/75/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/274/75/table1?GETtext/xml+votable180.050000true10.9667524.4058130.0055555555555555566/3 6 306 361 2920 4672 5099 5715 5743 5881 5931 6092 6441 6522 6873 7242 7804 9168 9476 9727 10151 10526 10691 10717 11978 12253 17797 17840 18800 18894 19941 20095 22007 22792 22830 23023 23324 24041 28622 28663 32362 32503 408039.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/274/75?format=asciiX-rayOpticaldefaultJ/MNRAS/274/75/table1New redshiftsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRXJROSAT denomination (based on J2000 position)meta.id;meta.maincharNote[1/2]? Rank of the X-ray galaxy (1)meta.noteintnullablen_Name[+] +: Not a central dominant galaxy (2)meta.notecharNameOptical namemeta.idcharNote2[1/2]? Rank of the optical galaxy (1)meta.noteintnullableRA1950Optical right ascension (1950)pos.eq.ra;meta.mainDE1950Optical declination (1950)pos.eq.dec;meta.mainu_zem[+] Note on zem (3)meta.code.errorcharzem? Emission redshiftsrc.redshiftfloatnullableu_zabs[+] Note on zabs (3)meta.code.errorcharzabs? Absorption redshiftsrc.redshiftfloatnullableEWHalpha? H{alpha} equivalent width (4)0.1nmspect.line.eqWidth;em.line.Halphafloatnullablee_EWHalpha? rms uncertainty on EWHalpha0.1nmstat.errorfloatnullableS1.4GHz? Radio flux a 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzintnullablen_S1.4GHz[*] *: Radio fluxes extrapolated from 4.85GHz (5)meta.notecharSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)pos.eq.decnullableindexed