J/ApJS/227/3ivo://CDS.VizieR/J/ApJS/227/3doi:10.26093/cds/vizier.22270003CDSBayliss M.B.Ruel J.Stubbs C.W.Allen S.W.Applegate D.E.,Ashby M.L.N.Bautz M.Benson B.A.Bleem L.E.Bocquet S.Brodwin M.,Capasso R.Carlstrom J.E.Chang C.L.Chiu I.Cho H.-M.Clocchiatti A.,Crawford T.M.Crites A.T.de Haan T.Desai S.Dietrich J.P.,Dobbs M.A.Doucouliagos A.N.Foley R.J.Forman W.R.Garmire G.P.,George E.M.Gladders M.D.Gonzalez A.H.Gupta N.Halverson N.W.,Hlavacek-Larrondo J.Hoekstra H.Holder G.P.Holzapfel W.L.Hou Z.,Hrubes J.D.Huang N.Jones C.Keisler R.Knox L.Lee A.T.,Leitch E.M.von der Linden A.Luong-Van D.Mantz A.Marrone D.P.,McDonald M.McMahon J.J.Meyer S.S.Mocanu L.M.Mohr J.J.Murray S.S.,Padin S.Pryke C.Rapetti D.Reichardt C.L.Rest A.Ruhl J.E.,Saliwanchik B.R.Saro A.Sayre J.T.Schaffer K.K.Schrabback T.,Shirokoff E.Song J.Spieler H.G.Stalder B.Stanford S.A.,Staniszewski Z.Stark A.A.Story K.T.Vanderlinde K.Vieira J.D.,Vikhlinin A.Williamson R.Zenteno A.2019-06-05T14:01:13Z2017-01-25T09:26:18ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesspectroscopysurveysline-intensitiesvisible-astronomysloan-photometryWe present the results of SPT-GMOS, a spectroscopic survey with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South. The targets of SPT-GMOS are galaxy clusters identified in the SPT-SZ survey, a millimeter-wave survey of 2500deg^2^ of the southern sky using the South Pole Telescope (SPT). Multi-object spectroscopic observations of 62 SPT-selected galaxy clusters were performed between 2011 January and 2015 December, yielding spectra with radial velocity measurements for 2595 sources. We identify 2243 of these sources as galaxies, and 352 as stars. Of the galaxies, we identify 1579 as members of SPT-SZ galaxy clusters. The primary goal of these observations was to obtain spectra of cluster member galaxies to estimate cluster redshifts and velocity dispersions. We describe the full spectroscopic data set and resulting data products, including galaxy redshifts, cluster redshifts, and velocity dispersions, and measurements of several well-known spectral indices for each galaxy: the equivalent width, W, of [OII]{lambda}{lambda}3727, 3729 and H-{delta}, and the 4000{AA} break strength, D4000. We use the spectral indices to classify galaxies by spectral type (i.e., passive, post-starburst, star-forming), and we match the spectra against photometric catalogs to characterize spectroscopically observed cluster members as a function of brightness (relative to m*). Finally, we report several new measurements of redshifts for ten bright, strongly lensed background galaxies in the cores of eight galaxy clusters. Combining the SPT-GMOS data set with previous spectroscopic follow-up of SPT-SZ galaxy clusters results in spectroscopic measurements for >100 clusters, or ~20% of the full SPT-SZ sample.2016ApJS..227....3Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/227/3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/49 : XXL Survey: First results (Pierre+, 2016)J/MNRAS/449/4010 : SALT galaxy clusters detected by ACT (Kirk+, 2015)J/ApJS/216/27 : Galaxy clusters discovered in the SPT-SZ survey (Bleem+, 2015)J/ApJ/774/23 : Chandra observations of SPT-SZ clusters (McDonald+, 2013)J/ApJ/772/25 : Massive SZE clusters observations with ACT (Sifon+, 2013)J/ApJ/767/15 : Hectospec Cluster Survey (HeCS) (Rines+, 2013)J/ApJ/763/127 : Galaxy clusters discovered in SPT survey (Reichardt+, 2013)J/ApJ/761/22 : NIR galaxy cluster candidates in the SPT survey (Song+, 2012)J/ApJS/199/34 : Clusters of galaxies in SDSS-III (Wen+, 2012)J/ApJ/684/905 : z>1 gal. clusters from IRAC Shallow Survey (Eisenhardt+, 2008)J/ApJS/172/561 : The 400d cluster Survey (Burenin+, 2007)J/ApJ/660/239 : MaxBCG catalog of galaxy clusters from SDSS (Koester+, 2007)J/AJ/127/2455 : Gemini Deep Deep Survey (GDDS) (Abraham+, 2004)J/ApJS/129/435 : NORAS galaxy cluster survey. I. (Bohringer+, 2000)http://dataverse.harvard.edu/dataverse/SPT_Clusters : SPT Galaxy Clusterhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/227/3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/227/3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/227/3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/227/3https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/227/3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/227/3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/227/3/table3 (SPT-GMOS data products for candidate brightest cluster galaxy spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/227/3/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/227/3/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/227/3/table3?GETtext/xml+votable180.050000true3.342339-49.1400720.005555555555555556Cone search capability for table J/ApJS/227/3/table4 (Giant arc redshift constraints)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/227/3/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/227/3/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/227/3/table4?GETtext/xml+votable180.050000true40.9056667-48.56302780.005555555555555556Cone search capability for table J/ApJS/227/3/table1 (Gemini/GMOS-South observations of SPT-SZ galaxy clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/227/3/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/227/3/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/227/3/table1?GETtext/xml+votable180.050000true3.329167-49.1150.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/ApJS/227/36/33273 33274 33275 33389 33400 33543 33553 33580 33668 33692 33758 33764 33769 33783 33796 33810 33865 33912 33945 33956 33990 34139 34304 34324 34326 34350 34355 34368 34821 34839 34927 34934 34935 35013 35032 35108 35121 35361 35364 35388 35396 39069 45424 45426 45435 45438 45526 45536 45539 45689 45692 45886 45892 45893 45894 45946 45947 45964 46001 46045 46235 46312 46314 46388 46389 46424 46444 46491 46494 46628 46636 46660 474342.381800341673347e-19 3.5010283109654867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/227/3?format=asciiOpticaldefaultJ/ApJS/227/3/table2Spectroscopy of SPT clusters: resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLCluster name (JHHMM+DDMM) (1)meta.id;meta.maincharprimaryf_SPT-CL[ ab] Flag(s) on SPT-CL (2)meta.codecharNgmeta.numberintnullableNlNumber of arcs for this cluster (link to Table 4)meta.numberintnullableNobsmeta.numberintnullableNsp[11/67] Total number of spectra with radial velocity measurementsmeta.numberintNMm[4/44] Number of cluster member galaxiesmeta.numberintz[0.29/1.04] Median cluster redshiftsrc.redshiftfloate_z[0.002/0.02] Uncertainty in zstat.error;src.redshiftfloatsigmaBI[546/1932] Bi-weight derived velocity dispersion estimatekm/sphys.veloc.dispersioninte_sigmaBI[92/724] Uncertainty in sigmaBIkm/sstat.errorintsigmaG[520/1941] Gapper derived velocity dispersion estimatekm/sphys.veloc.dispersioninte_sigmaG[94/747] Uncertainty in sigmaGkm/sstat.errorintA2[0.1/2.2] AD test statistic (3)stat.fit.paramfloatalphaProbability cluster velocity drawn from Gaussian velocity distributionstat.fit.goodnessdoubleSZCatDisplay data from McDonald+, 2013, J/ApJ/774/23; Reichard+, 2013, J/ApJ/763/127 and Song+, 2012, J/ApJ/761/22 if anymeta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlcharJ/ApJS/227/3/table3SPT-GMOS data products for candidate brightest cluster galaxy spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLCluster name (JHHMM+DDMM)meta.id.parentcharGalGalaxy name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharRAJ2000Galaxy Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Galaxy Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainz[0.072/2] Measured galaxy spectroscopic redshiftsrc.redshiftdoublee_z[0/0.003] Uncertainty in zstat.error;src.redshiftdoubleEW-O2[-792/206]? Equivalent width of [OII]3727{AA} line, in Angstroms0.1nmspect.line.eqWidthfloatnullablee_EW-O2[0.4/470]? Uncertainty in EW-O20.1nmstat.error;spect.line.eqWidthfloatnullableEW-Hd[-768/385]? Equivalent width of H{delta} line, in Angstroms0.1nmspect.line.eqWidthfloatnullablee_EW-Hd[0.1/441]? Uncertainty in EW-Hd0.1nmstat.error;spect.line.eqWidthfloatnullableD4000[0.1/21]? Strength of 4000{AA} breakspect.indexfloatnullablee_D4000[0.01/11.2]? Uncertainty in D4000stat.errorfloatnullablermag[17.2/26.2]? r band AB magnitude in SDSS system (1)magphot.mag;em.opt.Rfloatnullableimag[16.6/24]? i band AB magnitude in SDSS system (1)magphot.mag;em.opt.IfloatnullableAssocDataAssociated Data web pagemeta.ref.urlcharFileSpectrum file name in subdirectory "sp"meta.id;meta.filecharSpInteractive spectrum plot from Filemeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJS/227/3/table4Giant arc redshift constraintsn_zNote on z (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLSPT cluster lens identifier (JHHMM+DDMM)meta.id.parentcharArcArc identifiermeta.id;meta.maincharRAJ2000[1/23] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000[41/62] Degree of declination (J2000)pos.eq.dec;meta.mainz[0.6/2.7]? Redshiftsrc.redshiftfloatnullablee_z[0.0002/0.001]? z uncertaintystat.error;src.redshiftfloatnullablezlo[0.8/1.8]? Lower limit on zsrc.redshift;stat.minfloatnullablezup[2.3/3.9]? Upper limit on zsrc.redshift;stat.maxfloatnullableCommSpectral features and commentsinstr.bandwidthSimbadSimbad column added by the CDSmeta.ref.urlcharJ/ApJS/227/3/table1Gemini/GMOS-South observations of SPT-SZ galaxy clustersPIDGemini program IDmeta.id;obscharf_xi[a] Flag on xi (1)meta.codecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLCluster name (JHHMM+DDMM)meta.id;meta.maincharRAJ2000Cluster hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainxi[5/27.5]? Significance {xi} from SPT-SZ surveystat.fit.goodnessfloatnullableMask[1/59] Mask number within the Gemini programmeta.id;instrintGratingGrating usedinstr.setupcharFilterThe order-sorting filter used (if any)instr.setup;instr.filtercharlamC1Lower range of central wavelength {lambda}_C_, in {AA}0.1nmem.wl.central;stat.minintlamC2Upper range of central wavelength {lambda}_C_, in {AA}0.1nmem.wl.central;stat.maxintExp[1500/6600] Total integration time for which the mask was exposedstime.epochint