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

T. Poutanen, P. Natoli, G. Polenta, J.G. Bartlett, M. Bucher, J.-F. Cardoso, A. Catalano, J. Delabrouille, S. Fromenteau, K. Ganga, Y. Giraud-Héraud, M. Le Jeune, G. Patanchon, M. Piat, C. Rosset, G.F. Smoot, R. Stompor, M. Ashdown, M.L. Brown, P. CarvalhoG. Chon, F. Feroz, K.J.B. Grainge, M. Hobson, N. Hurley-Walker, A. Lasenby, M. Olamaie, R.D.E. Saunders, V. Stolyarov, R. Bhatia, R. Kneissl, J.R. Bond, M.-A. Miville-Deschênes, A.J. Banday, J.-P. Bernard, O. Forni, M. Giard, L. Montier, E. Pointecouteau, I. Ristorcelli, J.J. Bock, O. Doré, S.R. Hildebrandt, S. Mei, T.J. Pearson, G. Prézeau, G. Rocha, M.D. Seiffert, H. Dahle, P.B. Lilje, A. Da Silva, A. Challinor, P. Shellard, J.-B. Melin, R. Piffaretti, J.-L. Starck, D. Yvon, Michael Linden-Vørnle, Hans Ulrik Nørgaard-Nielsen, L. Toffolatti, F. Marleau, C.B. Netterfield, D. Scott, E. Pierpaoli, A. Liddle, M. Juvela, E. Keihänen, R. Keskitalo, H. Kurki-Suonio, T. Poutanen, C. Chiang, W.C. Jones, L. Cayón, G.F. Smoot, M. White, L. Knox, A. Stanford, R. Leonardi, P.M. Lubin, P.R. Meinhold, A. Zonca, B.D. Wandelt, S. Matarrese, P. De Bernardis, S. Masi, A. Melchiorri, F. Nati, F. Piacentini, M. Bersanelli, D. Maino, A. Mennella, M. Tomasi, A. Gregorio, P. Natoli, A. Balbi, P. Cabella, G. De Gasperis, P. Mazzotta, N. Vittorio, P.R. Christensen, P. Naselsky, I. Flores-Cacho, R.T. Génova-Santos, R. Rebolo, J.A. Rubiño-Martín, R. Kneissl, R. González-Riestra, X. Dupac, R. Leonardi, L. Mendes, G. Giardino, R.J. Laureijs, R. Leonardi, J.A. Tauber, S. Mei, H. Kurki-Suonio, T. Poutanen, A. Bonaldi, G. De Zotti, S. Colafrancesco, G. Polenta, M. Frailis, S. Galeotta, M. Maris, A. Mennella, F. Pasian, A. Zacchei, C. Burigana, F. Cuttaia, A. De Rosa, F. Finelli, E. Franceschi, A. Gruppuso, N. Mandolesi, G. Morgante, P. Natoli, S. Ricciardi, M. Sandri, L. Terenzi, L. Valenziano, F. Villa, M. Bersanelli, S. Donzelli, D. Maino, M. Tomasi, F. Stivoli, F.-X. Désert, A. Chamballu, D.L. Clements, A.H. Jaffe, D. Mortlock, D. Novikov, R.-R. Chary, K. Ganga, T.J. Pearson, B. Rusholme, A. Benoît, N. Aghanim, J. Aumont, H. Dole, M. Douspis, S. Fromenteau, G. Lagache, M.-A. Miville-Deschênes, F. Noviello, F. Pajot, N. Ponthieu, J.-L. Puget, N. Taburet, J.-P. Torre, L. Vibert, K. Benabed, F.R. Bouchet, J.-F. Cardoso, S. Colombi, J.-M. Delouis, E. Hivon, A. Moneti, S. Prunet, J.-F. Sygnet, B.D. Wandelt, P. Fosalba, L.-Y. Chiang, A. Challinor, G. Efstathiou, S. Gratton, D. Harrison, D. Munshi, D. Sutton, H. Dahle, S. Donzelli, P.B. Lilje, I. Flores-Cacho, R.T. Génova-Santos, S.R. Hildebrandt, R.J. Hoyland, R. Rebolo, J.A. Rubiño-Martín, R.B. Barreiro, J.M. Diego, D. Herranz, M. López-Caniego, E. Martínez-González, P. Vielva, J.G. Bartlett, J.J. Bock, B.P. Crill, O. Doré, P. Eisenhardt, K.M. Górski, W.A. Holmes, R. Keskitalo, C.R. Lawrence, S. Mitra, G. Prézeau, G. Rocha, M.D. Seiffert, L.A. Wade, R. Battye, R.J. Davis, C. Dickinson, B. Maffei, M. Ashdown, M.L. Brown, A. Challinor, K.J.B. Grainge, S. Gratton, D. Harrison, A. Lasenby, C.J. MacTavish, R.D.E. Saunders, D. Sutton, A. Catalano, A. Coulais, J.-M. Lamarre, M. Arnaud, R. Piffaretti, G.W. Pratt, J.-L. Starck, J.-F. Cardoso, S.R. Hildebrandt, G. Hurier, J.F. MacÍas-Pérez, L. Perotto, C. Renault, D. Santos, F. Couchot, S. Henrot-Versillé, O. Perdereau, S. Plaszczynski, M. Tristram, J. Borrill, C.M. Cantalupo, T.S. Kisner, G.F. Smoot, C. Li, A.J. Banday, M. Bartelmann, E. Churazov, K. Dolag, U. Dörl, T.A. Enßlin, C. Hernández-Monteagudo, W. Hovest, C. Li, F. Matthai, J.P. Rachen, M. Reinecke, T. Riller, R. Sunyaev, S.D.M. White, G. Chon, J. Tuovinen, A. Murphy, P.R. Christensen, P. Naselsky, I. Novikov, B.P. Crill, G. Savini, C. Baccigalupi, L. Danese, G. De Zotti, J. González-Nuevo, S. Leach, F. Perrotta, R. Mann, P.A.R. Ade, D. Munshi, R. Sudiwala, E. Churazov, R. Sunyaev, J. Borrill, S. Osborne, E. Saar, P. Heinämäki, M. Bartelmann, B.M. Schaefer, S. Mei, A.J. Banday, J.-P. Bernard, O. Forni, M. Giard, L. Montier, E. Pointecouteau, I. Ristorcelli, W.T. Reach, J. Weller, E. Battaner, K.M. Huffenberger, K.M. Górski

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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 is comprised of 189 candidates, which have a high signal-to-noise ratio ranging from 6 to 29. Its high reliability (purity above 95%) is further ensured by an extensive validation process based on Planck internal quality assessments and by external cross-identification and follow-up observations. Planck provides the first measured SZ signal for about 80% of the 169 previously-known ESZ clusters. Planck furthermore releases 30 new cluster candidates, amongst which 20 meet the ESZ signal-to-noise selection criterion. At the submission date, twelve of the 20 ESZ candidates were confirmed as new clusters, with eleven confirmed using XMM-Newton snapshot observations, 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 more than a decade in mass, up to the rarest and most massive clusters with masses above 1 × 1015 M. © ESO, 2011.
Original languageEnglish
JournalAstronomy & Astrophysics
Volume536
Pages (from-to)A8
ISSN0004-6361
DOIs
Publication statusPublished - 2011

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