Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample
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 10^15 Msol.
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Cite
@article{arxiv.1101.2024,
title = {Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample},
author = {Planck Collaboration and P. A. R. Ade and N. Aghanim and M. Arnaud and M. Ashdown and J. Aumont and C. Baccigalupi and A. Balbi and A. J. Banday and R. B. Barreiro and M. Bartelmann and J. G. Bartlett and E. Battaner and R. Battye and K. Benabed and A. Benoît and J. -P. Bernard and M. Bersanelli and R. Bhatia and J. J. Bock and A. Bonaldi and J. R. Bond and J. Borrill and F. R. Bouchet and M. L. Brown and M. Bucher and C. Burigana and P. Cabella and C. M. Cantalupo and J. -F. Cardoso and P. Carvalho and A. Catalano and L. Cayón and A. Challinor and A. Chamballu and R. -R. Chary and L. -Y Chiang and C. Chiang and G. Chon and P. R. Christensen and E. Churazov and D. L. Clements and S. Colafrancesco and S. Colombi and F. Couchot and A. Coulais and B. P. Crill and F. Cuttaia and A. Da Silva and H. Dahle and L. Danese and R. J. Davis and P. de Bernardis and G. de Gasperis and A. de Rosa and G. de Zotti and J. Delabrouille and J. -M. Delouis and F. -X. Désert and C. Dickinson and J. M. Diego and K. Dolag and H. Dole and S. Donzelli and O. Doré and U. Dörl and M. Douspis and X. Dupac and G. Efstathiou and P. Eisenhardt and T. A. Enßlin and F. Feroz and F. Finelli and I. Flores and O. Forni and P. Fosalba and M. Frailis and E. Franceschi and S. Fromenteau and S. Galeotta and K. Ganga and R. T. Génova-Santos and M. Giard and G. Giardino and Y. Giraud-Héraud and J. González-Nuevo and R. González-Riestra and K. M. Górski and K. J. B. Grainge and S. Gratton and A. Gregorio and A. Gruppuso and D. Harrison and P. Heinämäki and S. Henrot-Versillé and C. Hernández-Monteagudo and D. Herranz and S. R. Hildebrandt and E. Hivon and M. Hobson and W. A. Holmes and W. Hovest and R. J. Hoyland and K. M. Huffenberger and G. Hurier and N. Hurley-Walker and A. H. Jaffe and W. C. Jones and M. Juvela and E. Keihänen and R. Keskitalo and T. S. Kisner and R. Kneissl and L. Knox and H. Kurki-Suonio and G. Lagache and J. -M. Lamarre and A. Lasenby and R. J. Laureijs and C. R. Lawrence and M. Le Jeune and S. Leach and R. Leonardi and C. Li and A. Liddle and P. B. Lilje and M. Linden-Vørnle and M. López-Caniego and P. M. Lubin and J. F. Macías-Pérez and C. J. MacTavish and B. Maffei and D. Maino and N. Mandolesi and R. Mann and M. Maris and F. Marleau and E. Martínez-González and S. Masi and S. Matarrese and F. Matthai and P. Mazzotta and S. Mei and P. R. Meinhold and A. Melchiorri and J. -B. Melin and L. Mendes and A. Mennella and S. Mitra and M. -A. Miville-Deschênes and A. Moneti and L. Montier and G. Morgante and D. Mortlock and D. Munshi and A. Murphy and P. Naselsky and F. Nati and P. Natoli and C. B. Netterfield and H. U. Nørgaard-Nielsen and F. Noviello and D. Novikov and I. Novikov and M. Olamie and S. Osborne and F. Pajot and F. Pasian and G. Patanchon and T. J. Pearson and O. Perdereau and L. Perotto and F. Perrotta and F. Piacentini and M. Piat and E. Pierpaoli and R. Piffaretti and S. Plaszczynski and E. Pointecouteau and G. Polenta and N. Ponthieu and T. Poutanen and G. W. Pratt and G. Prézeau and S. Prunet and J. -L. Puget and J. P. Rachen and W. T. Reach and R. Rebolo and M. Reinecke and C. Renault and S. Ricciardi and T. Riller and I. Ristorcelli and G. Rocha and C. Rosset and J. A. Rubiño-Martín and B. Rusholme and E. Saar and M. Sandri and D. Santos and R. D. E. Saunders and G. Savini and B. M. Schaefer and D. Scott and M. D. Seiffert and P. Shellard and G. F. Smoot and A. Stanford and J. -L. Starck and F. Stivoli and V. Stolyarov and R. Stompor and R. Sudiwala and R. Sunyaev and D. Sutton and J. -F. Sygnet and N. Taburet and J. A. Tauber and L. Terenzi and L. Toffolatti and M. Tomasi and J. -P. Torre and M. Tristram and J. Tuovinen and L. Valenziano and L. Vibert and P. Vielva and F. Villa and N. Vittorio and L. A. Wade and B. D. Wandelt and J. Weller and S. D. M. White and M. White and D. Yvon and A. Zacchei and A. Zonca},
journal= {arXiv preprint arXiv:1101.2024},
year = {2016}
}
Comments
Accepted for publication in a special issue of A&A, 26 pages, this paper is part of a package of papers describing first results of the Planck mission