Planck early results. XII. Cluster Sunyaev-Zeldovich optical scaling relations

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, G. Patanchon, M. Piat, C. Rosset, G.F. Smoot, M. Ashdown, M.L. Brown, G. Chon, M. Hobson, A. LasenbyV. 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, G. Prézeau, G. Rocha, M.D. Seiffert, H. Dahle, 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, 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, R. Leonardi, P.M. Lubin, A. Zonca, B.D. Wandelt, S. Matarrese, P. De Bernardis, S. Masi, A. Melchiorri, 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, 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, K. Ganga, B. Rusholme, A. Benoît, N. Aghanim, J. Aumont, M. Douspis, S. Fromenteau, G. Lagache, M.-A. Miville-Deschênes, F. Noviello, F. Pajot, N. Ponthieu, J.-L. Puget, 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, L.-Y. Chiang, A. Challinor, G. Efstathiou, S. Gratton, D. Harrison, D. Munshi, H. Dahle, S. Donzelli, 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, K.M. Górski, W.A. Holmes, R. Keskitalo, C.R. Lawrence, S. Mitra, I.J. O'Dwyer, G. Prézeau, G. Rocha, M.D. Seiffert, R.J. Davis, B. Maffei, M. Ashdown, M.L. Brown, A. Challinor, S. Gratton, D. Harrison, A. Lasenby, C.J. MacTavish, A. Catalano, A. Coulais, J.-M. Lamarre, M. Arnaud, R. Piffaretti, G.W. Pratt, J.-L. Starck, J.-F. Cardoso, S.R. Hildebrandt, J.F. MacÍas-Pérez, L. Perotto, C. Renault, F. Couchot, S. Henrot-Versillé, O. Perdereau, S. Plaszczynski, M. Tristram, J. Borrill, T.S. Kisner, G.F. Smoot, A.J. Banday, M. Bartelmann, E. Churazov, K. Dolag, U. Dörl, T.A. Enßlin, C. Hernández-Monteagudo, W. Hovest, F. Matthai, 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, D. Munshi, R. Sudiwala, E. Churazov, R. Sunyaev, J. Borrill, S. Osborne, M. Bartelmann, B.M. Schaefer, S. Mei, A.J. Banday, J.-P. Bernard, O. Forni, M. Giard, L. Montier, E. Pointecouteau, I. Ristorcelli, E. Battaner, K.M. Huffenberger, K.M. Górski

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Abstract

We present the Sunyaev-Zeldovich (SZ) signal-to-richness scaling relation (Y500 - N200) for the MaxBCG cluster catalogue. Employing a multi-frequency matched filter on the Planck sky maps, we measure the SZ signal for each cluster by adapting the filter according to weak-lensing calibrated mass-richness relations (N200 - M500). We bin our individual measurements and detect the SZ signal down to the lowest richness systems (N200 = 10) with high significance, achieving a detection of the SZ signal in systems with mass as low as M500 ≈ 5 × 1013 M. The observed Y500 - N200 relation is well modeled by a power law over the full richness range. It has a lower normalisation at given N200 than predicted based on X-ray models and published mass-richness relations. An X-ray subsample, however, does conform to the predicted scaling, and model predictions do reproduce the relation between our measured bin-average SZ signal and measured bin-average X-ray luminosities. At fixed richness, we find an intrinsic dispersion in the Y500 - N200 relation of 60% rising to of order 100% at low richness. Thanks to its all-sky coverage, Planck provides observations for more than 13000 MaxBCG clusters and an unprecedented SZ/optical data set, extending the list of known cluster scaling laws to include SZ-optical properties. The data set offers essential clues for models of galaxy formation. Moreover, the lower normalisation of the SZ-mass relation implied by the observed SZ-richness scaling has important consequences for cluster physics and cosmological studies with SZ clusters. © ESO, 2011.
Original languageEnglish
JournalAstronomy & Astrophysics
Volume536
Pages (from-to)A12
ISSN0004-6361
DOIs
Publication statusPublished - 2011

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