J/ApJ/761/22ivo://CDS.VizieR/J/ApJ/761/22doi:10.26093/cds/vizier.17610022CDSSong J.Zenteno A.Stalder B.Desai S.Bleem L.E.Aird K.A.,Armstrong R.Ashby M.L.N.Bayliss M.Bazin G.Benson B.A.Bertin E.,Brodwin M.Carlstrom J.E.Chang C.L.Cho H.M.Clocchiatti A.,Crawford T.M.Crites A.T.de Haan T.Dobbs M.A.Dudley J.P.,Foley R.J.George E.M.Gettings D.Gladders M.D.Gonzalez A.H.,Halverson N.W.Harrington N.L.High F.W.Holder G.P.Holzapfel W.L.,Hoover S.Hrubes J.D.Joy M.Keisler R.Knox L.Lee A.T.Leitch E.M.,Liu J.Lueker M.Luong-Van D.Marrone D.P.McDonald M.McMahon J.J.,Mehl J.Meyer S.S.Mocanu L.Mohr J.J.Montroy T.E.Natoli T.,Nurgaliev D.Padin S.Plagge T.Pryke C.Reichardt C.L.Rest A.,Ruel J.Ruhl J.E.Saliwanchik B.R.Saro A.Sayre J.T.Schaffer K.K.,Shaw L.Shirokoff E.Suhada R.Spieler H.G.Stanford S.A.,Staniszewski Z.Stark A.A.Story K.Stubbs C.W.van Engelen A.,Vanderlinde K.Vieira J.D.Williamson R.Zahn O.2017-11-28T13:21:58Z2014-09-04T06:58:58ZCDS support team

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

cds-question@unistra.frgalaxy-clusterssurveysredshiftedphotometrygalaxiesinfrared-sourcesWe present the results of the ground- and space-based optical and near-infrared (NIR) follow-up of 224 galaxy cluster candidates detected with the Sunyaev-Zel'dovich (SZ) effect in the 720deg^2^ of the South Pole Telescope (SPT) survey completed in the 2008 and 2009 observing seasons. We use the optical/NIR data to establish whether each candidate is associated with an overdensity of galaxies and to estimate the cluster redshift. Most photometric redshifts are derived through a combination of three different cluster redshift estimators using red-sequence galaxies, resulting in an accuracy of {Delta}z/(1+z)=0.017, determined through comparison with a subsample of 57 clusters for which we have spectroscopic redshifts. We successfully measure redshifts for 158 systems and present redshift lower limits for the remaining candidates. The redshift distribution of the confirmed clusters extends to z=1.35 with a median of z_med_=0.57. Approximately 18% of the sample with measured redshifts lies at z>0.8. We estimate a lower limit to the purity of this SPT SZ-selected sample by assuming that all unconfirmed clusters are noise fluctuations in the SPT data. We show that the cumulative purity at detection significance {xi}>5 ({xi}>4.5) is >=95% (>=70%). We present the red brightest cluster galaxy (rBCG) positions for the sample and examine the offsets between the SPT candidate position and the rBCG. The radial distribution of offsets is similar to that seen in X-ray-selected cluster samples, providing no evidence that SZ-selected cluster samples include a different fraction of recent mergers from X-ray-selected cluster samples.2012ApJ...761...22Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/761/22CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/88 : Planck Early Release Compact Source Catalogue (Planck, 2011)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/ApJS/209/22 : SSDF survey: IRAC catalogs (Ashby+, 2013)J/ApJ/763/127 : Galaxy clusters discovered in the SPT survey (Reichardt+, 2013)J/ApJ/757/83 : The Blanco Cosmology Survey (BCS) (Desai+, 2012)J/ApJ/742/48 : Blanco survey of the lens BCS J2352-5452 (Buckley-Geer+, 2011)J/ApJ/719/763 : Millimeter-wave sources in the SPT survey (Vieira+, 2010)J/ApJ/716/530 : Mid-IR variability from the SDWFS (Kozlowski+, 2010)J/MNRAS/403/2063 : SXDF X-ray groups and galaxy clusters (Finoguenov+, 2010)J/A+A/499/357 : REFLEX galaxies redshifts (Guzzo+, 2009)J/ApJ/686/966 : Spitzer-FLS catalog of clusters of galaxies (Muzzin+, 2008)J/ApJ/684/905 : Galaxy clusters from IRAC Shallow Survey (Eisenhardt+, 2008)J/ApJ/660/239 : MaxBCG cat. of galaxy clusters from SDSS (Koester+, 2007)J/AJ/134/2398 : Stellar SEDs in SDSS and 2MASS filters (Covey+, 2007)J/ApJS/172/182 : XMM Clusters of galaxies in COSMOS field (Finoguenov+ 2007)J/ApJS/157/1 : Red-Sequence Cluster Survey (Gladders+, 2005)J/A+A/425/367 : REFLEX Galaxy Cluster Survey catalogue (Boehringer+, 2004)J/ApJ/502/558 : Catalog of ROSAT galaxy clusters (Vikhlinin+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/761/22https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/761/22http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/761/22https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/761/22https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/761/22http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/761/22GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/761/22/table3 (All candidates above {xi}=4.5 in 720deg^2^ of the SPT-SZ survey (South Pole Telescope))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/761/22/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/761/22/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/761/22/table3?GETtext/xml+votable180.050000true0.2496-57.80660.0055555555555555565/11471 6/33149 33180 33203 33212 33213 33223 33224 33225 33235 33240 33241 33251 33252 33260 33261 33262 33270 33273 33274 33277 33395 33400 33404 33497 33502 33527 33537 33540 33543 33548 33553 33555 33564 33570 33571 33573 33578 33580 33586 33587 33593 33594 33598 33603 33604 33610 33614 33616 33618 33619 33632 33668 33672 33674 33696 33705 33819 33820 33832 33835 33850 33851 33863 33865 33867 33869 33877 33878 33894 33897 33905 33910 33911 33912 33913 33921 33922 33932 33938 33956 33960 34049 34059 34954 45485 45490 45493 45497 45498 45536 45539 45543 45544 45546 45563 45566 45686 45692 45791 45815 45830 45835 45839 45840 45841 45844 45850 45862 45867 45873 45876 45893 45894 45901 45904 45911 45912 45913 45914 45918 45921 45930 45932 45934 45946 45949 45957 45959 45962 45963 45964 45965 45966 45968 45973 45979 45982 45984 45987 45993 45995 45997 46001 46005 46009 46017 46018 46021 46025 46028 46039 46045 46046 46063 46067 46105 46108 46110 46131 46139 46142 46143 46157 46166 46168 46169 46170 46206 46272 46276 46288 46341 46345 46353 46368 46595 46601 46604 46616 46622 46628 46629 46630 46635 46636 46641 46642 47360 47364 47375 47378 47390 47412 47430 47434https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/761/22?format=asciiOpticalInfrareddefaultJ/ApJ/761/22/table2Spectroscopic follow-upInstInstrument (1)meta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLSPT identification (JHHMM+DDMM)meta.id;meta.maincharDateObservation datetime.epoch;obsnullableNg[2/50]? Number of galaxies used in deriving redshiftsmeta.numberintnullableRefReference(s) (2)meta.ref;pos.framecharJ/ApJ/761/22/table3All candidates above {xi}=4.5 in 720deg^2^ of the SPT-SZ survey (South Pole Telescope)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSPT-CLSPT cluster identification (JHHMM+DDMM)meta.id;meta.maincharprimaryn_SPT-CLNote on SPT-CL cluster (1)meta.notecharSSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-65.2/-44.8] Declination (J2000)degpos.eq.dec;meta.mainxi[4.5/22.1] Detection significance {xi} (2)stat.likelihood;obsfloatz[0.05/1.4]? Spectroscopic redshift (3)src.redshiftfloatnullablel_zcombLimit flag on zcombmeta.code.errorcharzcomb[0.07/1.5] combined redshift, or lower limitsrc.redshift;pos.heliocentricfloate_zcomb[0.02/0.09]? zcomb uncertaintystat.errorfloatnullableq_zcombPhotometric redshift quality flag (1=secure) (4)meta.code.qualcharPNF? NEWFIRM NIR blank field probability (5)%statfloatnullablePSp? Spitzer NIR blank field probability (5)%statfloatnullablePW? WISE NIR blank field probability (5)%statfloatnullableRABdeg? Red brightest cluster galaxy (rBCG) right ascension (J2000)degpos.eq.ranullableDEBdeg? Red brightest cluster galaxy (rBCG) declination (J2000)degpos.eq.decnullableObsImaging reference(s) (6)meta.id;obscharSimbadSimbad column added by the CDSmeta.ref.urlchar