J/ApJ/774/40ivo://CDS.VizieR/J/ApJ/774/40doi:10.26093/cds/vizier.17740040CDSAndrews H.Barrientos L.F.Lopez S.Lira P.Padilla N.Gilbank D.G.,Lacerna I.Maureira M.J.Ellingson E.Gladders M.D.Yee H.K.C.2025-02-04T06:39:01Z2015-03-23T15:26:54ZCDS support team

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

cds-question@unistra.frgalaxy-clustersquasarsredshiftedgalaxiesspectroscopyWe present Gemini/GMOS-S multi-object spectroscopy of 31 galaxy cluster candidates at redshifts between 0.2 and 1.0 and centered on QSO sight lines taken from Lopez et al. (Paper I, J/ApJ/679/1144). The targets were selected based on the presence of an intervening MgII absorption system at a similar redshift to that of a galaxy cluster candidate lying at a projected distance <2h_71_^-1^Mpc from the QSO sight line (a "photometric hit"). The absorption systems span rest-frame equivalent widths between 0.015 and 2.028{AA}. The general population of our confirmed absorbing galaxies have luminosities L_B_~L_B_^*^ and mean rest-frame colors (R_c_-z') typical of S_cd_ galaxies.2013ApJ...774...40Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/774/40CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/174 : Morphological type catalog in rich galaxy clusters (Dressler, 1980)J/ApJ/761/112 : High-redshift MgII absorption QSOs with FIRE (Matejek+, 2012)J/ApJ/754/38 : MgII absorption systems for FSRQs (Chand+, 2012)J/ApJ/714/1521 : Spectroscopy of galaxies around distant QSOs (Chen+, 2010)J/ApJ/679/1144 : Galaxy clusters in LOS to background QSOs. I. (Lopez+, 2008)J/MNRAS/371/495 : Catalogue of MgII absorbers from SDSS DR3 (Bouche+, 2006)J/ApJ/641/169 : Spectroscopy in lens fields (Momcheva+, 2006)J/ApJ/625/6 : Galaxy groups in the DEEP2 GRS (Gerke+, 2005)J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)J/AJ/123/1807 : SDSS galaxy clusters redshifts (Goto+, 2002)J/A+A/316/123 : QSO absorber and galaxy evolution (Lindner+ 1996)http://www.sdss.org/ : SDSS home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/774/40https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/774/40http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/774/40https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/774/40https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/774/40http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/774/40GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/774/40/table1 (The 9 QSO fields studied in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/774/40/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/774/40/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/774/40/table1?GETtext/xml+votable180.050000true35.750.86670.005555555555555556Cone search capability for table J/ApJ/774/40/gmosdata (GMOS spectroscopic targets in the 9 QSO fields (tables 3--11))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/774/40/gmosdata?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/774/40/gmosdata?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/774/40/gmosdata?GETtext/xml+votable180.050000true35.73654170.91598890.0055555555555555566/17769 17772-17774 18751 18792 18794 18880 48388-48389https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/774/40?format=asciidefaultJ/ApJ/774/40/table1The 9 QSO fields studied in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldLine of sight identifiermeta.id;meta.maincharzem[0.8/2.1] Redshift of the QSOsrc.redshiftfloatNc[1/6] Number of RCS1 cluster/group candidates lying at d<2h^-1^_71_Mpc from the LOSmeta.numberintzabs[0.2/1.3] Absorption redshift with {delta}z_abs_~10^-4^src.redshiftfloatW2796[0.01/2.1] Rest-frame equivalent width of MgII determined in Paper I0.1nmspect.line.eqWidthfloate_W2796[0.003/0.07] W2796 uncertainty0.1nmstat.errorfloatHitPhotometric hit? (1)meta.codecharf_Hit[*] *: new photo-hitmeta.codecharHit1Photometric hit used in Paper I? (2)meta.codecharNgNumber of spectroscopic object observed in this fieldmeta.numberintnullable_RACoordinates from field names (right ascension part)degpos.eq.ra;meta.main_DECoordinates from field names (declination part)degpos.eq.dec;meta.mainJ/ApJ/774/40/gmosdataGMOS spectroscopic targets in the 9 QSO fields (tables 3--11)Rc-z'[-1.1/3.3]? (Rc-z') color index (1)magphot.color;em.opt.R;em.opt.IfloatnullableRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzgal[0/2.6]? Redshift of the MgII absorbing galaxy (z_gal_=0 for stars)src.redshiftdoublenullablee_zgal[0/0.008]? zgal uncertainty (0 for stars)stat.error;pos.distance;pos.cartesian.zdoublenullableq_zgal[0/3]? Redshift reliability flag (1=the most reliable)meta.code.qual;pos.distance;pos.cartesian.zintnullablez'mag[16.4/25.9]? z' (9100{AA}) band corrected AB magnitude (1)magphot.mag;em.opt.IfloatnullableCommCommentsmeta.noteSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldLine of sight identifierobs.fieldcharSeq[1/55] Running sequence numbermeta.id;meta.mainint