J/ApJ/776/91ivo://CDS.VizieR/J/ApJ/776/91doi:10.26093/cds/vizier.17760091CDSLemze D.Postman M.Genel S.Ford H.C.Balestra I.Donahue M.,Kelson D.Nonino M.Mercurio A.Biviano A.Rosati P.Umetsu K.,Sand D.Koekemoer A.Meneghetti M.Melchior P.Newman A.B.,Bhatti W.A.Voit G.M.Medezinski E.Zitrin A.Zheng W.Broadhurst T.,Bartelmann M.Benitez N.Bouwens R.Bradley L.Coe D.Graves G.,Grillo C.Infante L.Jimenez-Teja Y.Jouvel S.Lahav O.Maoz D.,Merten J.Molino A.Moustakas J.Moustakas L.Ogaz S.Scodeggio M.,Seitz S.2015-05-18T11:37:10Z2015-04-22T15:19:19ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgalaxiesspectroscopyredshiftedWe provide a new observational test for a key prediction of the {Lambda}CDM cosmological model: the contributions of mergers with different halo-to-main-cluster mass ratios to cluster-sized halo growth. We perform this test by dynamically analyzing 7 galaxy clusters, spanning the redshift range 0.13<z_c_<0.45 and caustic mass range 0.4-1.5x10^15^h_0.73_^-1^M_{sun}_, with an average of 293 spectroscopically confirmed bound galaxies to each cluster. The large radial coverage (a few virial radii), which covers the whole infall region, with a high number of spectroscopically identified galaxies enables this new study. For each cluster, we identify bound galaxies. Out of these galaxies, we identify infalling and accreted halos and estimate their masses and their dynamical states. Using the estimated masses, we derive the contribution of different mass ratios to cluster-sized halo growth. For mass ratios between ~0.2 and ~0.7, we find a ~1{sigma} agreement with {Lambda}CDM expectations based on the Millennium simulations I and II. At low mass ratios, <~0.2, our derived contribution is underestimated since the detection efficiency decreases at low masses, ~2x10^14^h_0.73_^-1^M_{sun}_. At large mass ratios, >~0.7, we do not detect halos probably because our sample, which was chosen to be quite X-ray relaxed, is biased against large mass ratios. Therefore, at large mass ratios, the derived contribution is also underestimated.2013ApJ...776...91Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/776/91CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)VII/86 : Groups of Galaxies. I. Nearby Groups (Huchra+ 1982)J/ApJS/208/20 : Nine-year WMAP point source catalogs (Bennett+, 2013)J/ApJ/767/15 : Hectospec Cluster Survey (HeCS) (Rines+, 2013)J/ApJ/757/22 : Strong and weak lensing analysis of A2261 (Coe+, 2012)J/MNRAS/424/2086 : LX-T relation in galaxy clusters (Hilton+, 2012)J/MNRAS/423/1024 : XCS-DR1 Cluster Catalogue (Mehrtens+, 2012)J/ApJS/199/34 : Clusters of galaxies in SDSS-III (Wen+, 2012)J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/ApJS/182/12 : ICM entropy profiles (ACCEPT) (Cavagnolo+, 2009)J/ApJ/660/239 : MaxBCG cat. of 13823 galaxy clusters from SDSS (Koester+, 2007)J/AJ/132/1275 : CIRS (Cluster Infall Regions in the SDSS). I. (Rines+, 2006)J/A+A/448/893 : Photometry & lines of (z~0.2-1.0) galaxies (Lamareille+, 2006)J/AJ/126/2152 : Cluster And Infall Region Nearby Survey. I (Rines+, 2003)J/AJ/124/1266 : Redshift survey around Abell 2199 (Rines+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/776/91https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/776/91http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/776/91https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/776/91https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/776/91http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/776/91GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/776/91/table1 (ClG 2130.4-0000 MMT/Hectospec spectroscopic redshifts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/776/91/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/776/91/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/776/91/table1?GETtext/xml+votable180.050000true322.61463639-0.081653610.005555555555555556Cone search capability for table J/ApJ/776/91/table2 (ACO 611 MMT/Hectospec spectroscopic redshifts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/776/91/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/776/91/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/776/91/table2?GETtext/xml+votable180.050000true120.2032222236.113300560.0055555555555555565/4774 6/6441 6443 6444 6446 19091 19100 19102https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/776/91?format=asciiOpticaldefaultJ/ApJ/776/91/table1ClG 2130.4-0000 MMT/Hectospec spectroscopic redshiftsR13Sources within 2" from Rines+, 2013, J/ApJ/767/15meta.ref.urlintnullablez[-0.001/2.9] Heliocentric redshift (1)src.redshiftdoublee_z[0.00001/0.002] Error in zstat.error;src.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainR[0/38] Tonry & Davis 1979AJ.....84.1511T cross correlation coefficient (R_cross_)stat.correlationfloatJ/ApJ/776/91/table2ACO 611 MMT/Hectospec spectroscopic redshiftse_z[0.00001/0.002] Error in zstat.error;src.redshiftdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainz[-0.001/2.9] Heliocentric redshift (1)src.redshiftdoubleR[0/38] Tonry & Davis 1979AJ.....84.1511T cross correlation coefficient (R_cross_)stat.correlationfloat