J/ApJ/679/1144ivo://CDS.VizieR/J/ApJ/679/1144doi:10.26093/cds/vizier.16791144CDSLopez S.Barrientos L.F.Lira P.Padilla N.Gilbank D.G.,Gladders M.D.Maza J.Tejos N.Vidal M.Yee H.K.C.2017-12-05T05:09:38Z2010-11-02T14:57:51ZCDS support team

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

cds-question@unistra.frgalaxy-clustersquasarsredshiftedline-intensitiesWe describe the first optical survey of absorption systems associated with cluster galaxies at z=0.3-0.9. We have cross-correlated quasars from the third data release of the SDSS (Cat. VII/243) with high-redshift cluster/group candidates from the Red-Sequence Cluster Survey (Cat. J/ApJS/157/1). We have found 442 quasar-cluster pairs for which the MgII{lambda}2796, 2803 doublet might be detected at a transverse (physical) distance d<2h^-1^_71_Mpc from the cluster centers. To investigate the incidence dN/dz and equivalent width distribution n(W) of MgII systems at cluster redshifts, two statistical samples were drawn out of these pairs: one made of high-resolution spectroscopic quasar observations (46 pairs), and one made of quasars used in MgII searches found in the literature (375 pairs).2008ApJ...679.1144Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/679/1144CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)J/ApJ/679/239 : Associated MgII absorbers (Vanden+, 2008)J/MNRAS/371/495 : Catalogue of 1806 MgII absorbers from SDSS DR3 (Bouche+,J/ApJ/639/766 : SDSS-DR3 strong MgII absorbers (Prochter+, 2006)J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)J/ApJS/158/161 : Photometric redshift catalog from the RCS (Hsieh+, 2005)J/MNRAS/354/L25 : MgII absorbers in SDSS QSOs (Bouche+, 2004)http://www.rcs2.org/ : RCS2 home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/679/1144https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/679/1144http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/679/1144https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/679/1144https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/679/1144http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/679/1144GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/679/1144/table1 (High-resolution spectroscopic quasar observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/679/1144/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/679/1144/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/679/1144/table1?GETtext/xml+votable180.050000true29.672495-43.41772170.005555555555555556Cone search capability for table J/ApJ/679/1144/table2 (MgII absorber systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/679/1144/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/679/1144/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/679/1144/table2?GETtext/xml+votable180.050000true29.672495-43.41772170.005555555555555556Cone search capability for table J/ApJ/679/1144/table3 (*Galaxy clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/679/1144/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/679/1144/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/679/1144/table3?GETtext/xml+votable180.050000true29.6708333-43.41833330.0055555555555555566/4124 5764 5769 5772 11424 11425 11427 11428 11430 17769 17772 17773 17774 18751 18786 18792 18794 18795 18798 18880 19283 26181 26990 34139 35218 48389 484233.588997330618193e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/679/1144?format=asciiOpticaldefaultJ/ApJ/679/1144/table1High-resolution spectroscopic quasar observationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameQuasar identificationmeta.id;meta.maincharf_Name[b] Flag for newly discovered quasar; named after Chandra fields, no position givenmeta.codechargmagMagnitude in g-bandmagphot.mag;em.opt.BfloatExpTExposure timestime.duration;obs.exposureintS/NMedian signal-to-noise ratio per pixelem.wl.central;stat.medianintObs.DateDate of observationtime.epochnullableDate2? 2nd day of observationtime.epoch;obsintnullableRemarkData from archivemeta.notecharSimbadNameSimbad column added by the CDSmeta.idcharSloanDisplay the SDSS data for this quasarmeta.ref.urlcharDR3SDSS-DR3 quasar data (Schneider et al. 2005, Cat. VII/243)meta.ref.urlcharDR7Display the SDSS quasar DR7 data (Schneider et al. 2010, Cat. VII/260)meta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainnullableJ/ApJ/679/1144/table2MgII absorber systemsNameQuasar identificationmeta.id;meta.maincharzem? Emission redshiftsrc.redshiftfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLOSLine of sight number (G1)meta.idintprimaryzEW? Minimum redshift (1)src.redshiftfloatnullablezabsMgII absorption redshiftsrc.redshiftfloatW2796Rest-frame equivalent width of MgII27960.1nmspect.line.eqWidthfloate_W27961{sigma} error on W27960.1nmstat.errorfloatSimbadNameSimbad column added by the CDSmeta.idcharSloanDisplay the SDSS data for this quasarmeta.ref.urlcharDR3SDSS-DR3 quasar data (Schneider et al. 2005, Cat. VII/243)meta.ref.urlcharDR7Display the SDSS quasar DR7 data (Schneider et al. 2010, Cat. VII/260)meta.ref.urlchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainnullableJ/ApJ/679/1144/table3*Galaxy clustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLOSLine of sight number (G1)meta.idintprimaryNameCluster name (1)meta.id;meta.maincharzCluster redshift from RCS (Cat. J/ApJS/157/1) unless flag in r_z colsrc.redshiftfloatr_z[a-f] Reference for z if not RCS (2)meta.ref;pos.framecharzminMinimum redshift surveyedsrc.redshiftfloatzmaxMaximum redshift surveyedsrc.redshiftfloatdistProjected distance from quasar LOS to cluster coordinatesarcminpos.angDistancefloatdist2Physical distance at z_cluster_ from quasar LOS to cluster coordinates (in h_71_^-1^kpc unit)kpcpos.distancefloatSimbadNameSimbad column added by the CDSmeta.idchar_RAPositions from Simbad (right ascension part)degpos.eq.ra;meta.mainnullable_DEPositions from Simbad (declination part)degpos.eq.dec;meta.mainnullable