J/MNRAS/337/256ivo://CDS.VizieR/J/MNRAS/337/256doi:10.26093/cds/vizier.73370256CDSBalogh M.Bower R.G.Smail I.Ziegler B.L.Davies R.L.Gaztelu A.,Fritz A.2024-06-28T20:16:56Z2003-06-05T08:13:11ZCDS support team

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

cds-question@unistra.frgalaxy-clustersx-ray-sourcesgalaxy-kinematicsline-intensitiesWe present the first spectroscopic survey of intrinsically low X-ray luminosity clusters at z>>0, with Hubble Space Telescope (HST) WFPC2 imaging and spectroscopy from Calar Alto and WHT-LDSS2. We study 172 confirmed cluster members in a sample of ten clusters at 0.23<z<0.3, with LX<~4x10^43^h^-2^erg/s[0.1-2.4keV]. The core of each cluster is imaged with WFPC2 in the F702W filter, and the spectroscopic sample is statistically complete to Mr~-19.0+5logh, within an 11' (~1.8h^-1^Mpc) field. The clusters are dynamically well-separated from the surrounding field and most have velocity distributions consistent with Gaussians. The velocity dispersions range from 350-850km/s, consistent with the local L_X_-{sigma} correlation. All 10 clusters host a bright, giant elliptical galaxy without emission lines, near the centre of the X-ray emission. We measure the equivalent width of two nebular emission lines, [O II] and H{alpha}, and the H{delta} absorption line to classify the cluster members spectrally. Galaxy morphologies are measured from the HST images, using the two-dimensional surface-brightness fitting software GIM2D.2002MNRAS.337..256Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/337/256CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/56/403 : X-ray survey of clusters of galaxies. IV. (Kowalski+, 1984)J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/337/256https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/337/256http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/337/256https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/337/256https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/337/256http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/337/256GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/337/256/table1 (Properties of the 10 clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/337/256/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/337/256/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/337/256/table1?GETtext/xml+votable180.050000true124.7666756.913610.005555555555555556Cone search capability for table J/MNRAS/337/256/table4 (Properties of cluster members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/337/256/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/337/256/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/337/256/table4?GETtext/xml+votable180.050000true124.8242583356.888286940.0055555555555555566/5103 7352 7969-7970 10169 10422 11514 11596https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/337/256?format=asciiX-raydefaultJ/MNRAS/337/256/table1Properties of the 10 clusters<z>Mean redshiftsrc.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster name (HHMM+DD)meta.id;meta.maincharprimarym_Cluster[ab] Multiplicity index on Clustermeta.code.multipcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainsigmaVelocity dispersionkm/sphys.veloc.dispersioninte_sigmarms uncertainty on sigmakm/sstat.errorintLXX-ray luminosity in 10^43^h^-2^erg/s1e+36Wphys.luminosity;em.X-rayfloatn_LX[b] Note for Cl 1444+63 (1)meta.notecharCompCompleteness (2)meta.notefloatNmembNumber of membersmeta.numberintJ/MNRAS/337/256/table4Properties of cluster membersS/NSignal-to-noise ratiostat.snrfloatEW0([OII])? [O II] dereddened equivalent width0.1nmspect.line.eqWidthfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster designation (HHMM+DD) (2)meta.id.part;meta.maincharm_Cluster[a/b ] Multilicity index on Clustermeta.code.multipcharGalGalaxy identification number (1)meta.id.part;meta.mainintn_Gal[a] a: Central, giant elliptical galaxymeta.notecharrmagr magnitudemagphot.mag;em.opt.RfloatRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainB/T? Bulge to total light ratio (GIM2D parameter) in measurement for galaxies observed with HSTphot.flux.sb;arith.ratiofloatnullablee_EW0([OII])? rms uncertainty on EW0([OII])0.1nmstat.errorfloatnullableEW0(Hdelta)? H{delta} dereddened equivalent width0.1nmspect.line.eqWidthfloatnullablee_EW0(Hdelta)? rms uncertainty on EW0(Hdelta)0.1nmstat.errorfloatnullableEW0(Ha+[NII])? H{alpha}+[N II] dereddened equivalent width0.1nmspect.line.eqWidthfloatnullablee_EW0(Ha+[NII])? rms uncertainty on EW0(Ha+[NII])0.1nmstat.errorfloatnullablezRedshfitsrc.redshiftfloat