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Planck early results. VIII. The all-sky early Sunyaev-Zeldovich cluster sample

P.A.R. Ade N. Aghanim 1 M. Arnaud M. Ashdown J. Aumont 1 C. Baccigalupi A. Balbi A.J. Banday 2 R.B. Barreiro M. Bartelmann J.G. Bartlett 3 E. Battaner R. Battye K. Benabed 4 A. Benoît 5 J.-P. Bernard 2 M. Bersanelli R. Bhatia J.J. Bock A. Bonaldi J.R. Bond J. Borrill F.R. Bouchet 4 M.L. Brown M. Bucher C. Burigana P. Cabella C.M. Cantalupo J.-F. Cardoso 6, 4, 7 P. Carvalho A. Catalano 6, 8 L. Cayon A. Challinor A. Chamballu R.-R. Chary L.-Y. Chiang C. Chiang G. Chon P.R. Christensen E. Churazov D.L. Clements S. Colafrancesco S. Colombi 4 F. Couchot 9 A. Coulais 8 B.P. Crill F. Cuttaia A. da Silva H. Dahle L. Danese R.J. Davis P. de Bernardis G. de Gasperis A. de Rosa G. de Zotti J. Delabrouille 10 J.-M. Delouis 4 F.-X. Désert 11 C. Dickinson J.M. Diego K. Dolag H. Dole 1 S. Donzelli O. Doré U. Dörl M. Douspis 1 X. Dupac G. Efstathiou P. Eisenhardt T.A. Enßlin F. Feroz F. Finelli I. Flores O. Forni 2 P. Fosalba M. Frailis E. Franceschi S. Fromenteau 1, 6 S. Galeotta K. Ganga 6 R.T. Génova-Santos M. Giard 2 G. Giardino Y. Giraud-Héraud 3 J. Gonzalez-Nuevo R. Gonzalez-Riestra K.M. Gorski K.J.B. Grainge Serge Gratton A. Gregorio A. Gruppuso D. Harrison P. Heinämäki S. Henrot-Versillé 9 C. Hernandez-Monteagudo D. Herranz S.R. Hildebrandt 12 E. Hivon 4 M. Hobson W.A. Holmes W. Hovest R. J. Hoyland K.M. Huffenberger G. Hurier 12 N. Hurley-Walker A.H. Jaffe W.C. Jones M. Juvela E. Keihänen R. Keskitalo T.S. Kisner R. Kneissl L. Knox H. Kurki-Suonio Guilaine Lagache 1 J.-M. Lamarre 8 A. Lasenby R.J. Laureijs C.R. Lawrence M. Le Jeune 6 S. Leach R. Leonardi C. Li A. Liddle P.B. Lilje M. Linden-Vørnle M. Lopez-Caniego P.M. Lubin J.F. Macias-Perez 12 C.J. Mactavish B. Maffei D. Maino N. Mandolesi R. Mann M. Maris F. Marleau E. Martınez-Gonzalez S. Masi S. Matarrese F. Matthai P. Mazzotta S. Mei 13 P.R. Meinhold A. Melchiorri J.-B. Melin 14 L. Mendes A. Mennella Subhabrata Mitra M.-A. Miville-Deschênes 1 A. Moneti 4 L. Montier 2 G. Morgante D. Mortlock D. Munshi A. Murphy P. Naselsky F. Nati P. Natoli C.B. Netterfield H.U. Nørgaard-Nielsen F. Noviello 1 D. Novikov I. Novikov M. Olamie S. Osborne F. Pajot 1 F. Pasian G. Patanchon 6 T.J. Pearson O. Perdereau 9 L. Perotto 12 F. Perrotta F. Piacentini M. Piat 6 E. Pierpaoli R. Piffaretti 14 Stéphane Plaszczynski 9 E. Pointecouteau 2 G. Polenta N. Ponthieu 1 T. Poutanen G.W. Pratt G. Prézeau S. Prunet 4 J.-L. Puget 1 J.P. Rachen W.T. Reach R. Rebolo M. Reinecke C. Renault 12 S. Ricciardi T. Riller I. Ristorcelli 2 G. Rocha C. Rosset 6 J.A. Rubino-Martın B. Rusholme E. Saar M. Sandri D. Santos 12 R.D.E. Saunders G. Savini B.M. Schaefer D. Scott M.D. Seiffert P. Shellard G.F. Smoot 6 A. Stanford Jean-Luc Starck 14 F. Stivoli 15 V. Stolyarov Radek Stompor 10 R. Sudiwala R. Sunyaev D. Sutton J.-F. Sygnet 4 N. Taburet 1 J.A. Tauber L. Terenzi L. Toffolatti M. Tomasi J.-P. Torre 1 M. Tristram 9 J. Tuovinen L. Valenziano L. Vibert 1 P. Vielva F. Villa N. Vittorio L.A. Wade B.D. Wandelt 4 J. Weller S.D.M. White M. White D. Yvon 14 A. Zacchei A. Zonca
Abstract : We present the first all-sky sample of galaxy clusters detected blindly by the Planck satellite through the Sunyaev-Zeldovich (SZ) effect from its six highest frequencies. This Early SZ (ESZ) sample of 189 candidates comprises high signal-to-noise clusters, from 6 to 29. Its high reliability (purity above 95%) is further insured by an extensive validation process based on Planck-internal quality assessments and external cross-identification and follow-up observations. Planck provides the first measured SZ signal for about 80% of the 169 ESZ known clusters. Planck further releases 30 new cluster candidates among which 20 are within the ESZ signal-to-noise selection criterion. Eleven of these 20 ESZ candidates are confirmed using XMM-Newton snapshot observations as new clusters, most of them with disturbed morphologies and low luminosities. The ESZ clusters are mostly at moderate redshifts (86% with z below 0.3) and span over a decade in mass, up to the rarest and most massive clusters with masses above 10^15 Msol.
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Submitted on : Tuesday, January 18, 2011 - 5:34:27 PM
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P.A.R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, et al.. Planck early results. VIII. The all-sky early Sunyaev-Zeldovich cluster sample. Astronomy and Astrophysics - A&A, EDP Sciences, 2011, 536, pp.A8. ⟨10.1051/0004-6361/201116459⟩. ⟨in2p3-00557254⟩

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