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    Planck intermediate results V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect

    Ade, P.A.R. and Aghanim, N. and Arnaud, M. and Ashdown, M. and Atrio-Barandela, F. and Aumont, J. and Baccigalupi, C. and Balbi, A. and Banday, A.J. and Barreiro, R.B. and Bartlett, J.G. and Battaner, E. and Benabed, K. and Benoit, A. and Bernard, J.-P. and Bersanelli, M. and Bhatia, R. and Bikmaev, I. and Bobin, J. and Böhringer, H. and Bonaldi, A. and Bond, J.R. and Borgani, S. and Borrill, J. and Bouchet, F.R. and Bourdin, H. and Brown, M.L. and Burenin, R. and Burigana, C. and Cabella, P. and Cardoso, J.-F. and Carvalho, P. and Castex, G. and Catalano, A. and Cayon, L. and Chamballu, A. and Chiang, L.-Y. and Chon, G. and Christensen, P.R. and Churazov, E. and Clements, D.L. and Colafrancesco, S. and Colombi, S. and Colombo, L.P.L. and Comis, B. and Coulais, A. and Crill, B.P. and Cuttaia, F. and Da Silva, A. and Dahle, H. and Danese, L. and Davis, R.J. and De Bernardis, P. and de Gasperis, G. and de Zotti, G. and Delabrouille, J. and Démoclès, J. and Desert, F.-X. and Diego, J.M. and Dolag, K. and Dole, H. and Donzelli, S. and Dore, O. and Dorl, U. and Douspis, M. and Dupac, X. and Efstathiou, G. and Enßlin, T.A. and Eriksen, H.K. and Finelli, F. and Flores-Cacho, I. and Forni, O. and Fosalba, P. and Frailis, M. and Franceschi, E. and Frommert, M. and Galeotta, S. and Ganga, K. and Genova-Santos, R.T. and Giard, M. and Giraud-Héraud, Y. and Gonzalez-Nuevo, J. and Gorski, K.M. and Gregorio, A. and Gruppuso, A. and Hansen, F.K. and Harrison, D. and Hempel, A. and Henrot-Versille, S. and Hernandez-Monteagudo, C. and Herranz, D. and Hildebrandt, S.R. and Hivon, E. and Hobson, M. and Holmes, W.A. and Hurier, G. and Jaffe, A.H. and Jaffe, T.R. and Jagemann, T. and Jones, W.C. and Juvela, M. and Keihanen, E. and Khamitov, I. and Kisner, T.S. and Kneissl, R. and Knoche, J. and Knox, L. and Kunz, M. and Kurki-Suonio, H. and Lagache, G. and Lahteenmaki, A. and Lamarre, J.-M. and Lasenby, A. and Lawrence, C.R. and Le Jeune, M. and Leonardi, R. and Liddle, A. and Lilje, P.B. and Lopez-Caniego, M. and Luzzi, G. and Macias-Perez, J.F. and Maino, D. and Mandolesi, N. and Maris, M. and Marleau, F. and Marshall, D.J. and Martinez-Gonzalez, E. and Masi, S. and Massardi, M. and Matarrese, S. and Mazzotta, P. and Mei, S. and Melchiorri, A. and Melin, J.-B. and Mendes, L. and Mennella, A. and Mitra, S. and Miville-Deschenes, M.-A. and Moneti, A. and Montier, L. and Morgante, G. and Mortlock, D. and Munshi, D. and Murphy, J.Anthony and Naselsky, P. and Nati, F. and Natoli, P. and Norgaard-Nielsen, H.U. and Noviello, F. and Novikov, D. and Novikov, I. and Osborne, S. and Pajot, F. and Paoletti, D. and Pasian, F. and Patanchon, G. and Perdereau, O. and Perotto, L. and Perrotta, F. and Piacentini, F. and Piat, M. and Pierpaoli, E. and Piffaretti, R. and Plaszczynski, S. and Pointecouteau, E. and Polenta, G. and Ponthieu, N. and Popa, L. and Poutanen, T. and Pratt, G.W. and Prunet, S. and Puget, J.-L. and Rachen, J.P. and Reach, W.T. and Rebolo, R. and Reinecke, M. and Remazeilles, M. and Renault, C. and Ricciardi, S. and Riller, T. and Ristorcelli, I. and Rocha, G. and Roman, M. and Rosset, C. and Rossetti, M. and Rubino-Martin, J.A. and Rusholme, B. and Sandri, M. and Savini, G. and Scott, D. and Smoot, G.F. and Starck, J.-L. and Sudiwala, R. and Sunyaev, R. and Sutton, D. and Suur-Uski, A.-S. and Sygnet, J.-F. and Tauber, J.A. and Terenzi, L. and Toffolatti, L. and Tomasi, M. and Tristram, M. and Tuovinen, J. and Valenziano, L. and Van Tent, B. and Varis, J. and Vielva, P. and Villa, F. and Vittorio, N. and Wade, L.A. and Wandelt, B.D. and Welikala, N. and White, M. and White, S.D.M. and Yvon, D. and Zacchei, A. and Zonca, A. (2013) Planck intermediate results V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effect. Astronomy & Astrophysics, 550 (A131). ISSN 0004-6361

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    Taking advantage of the all-sky coverage and broadfrequency range of the Planck satellite, we study the Sunyaev-Zeldovich (SZ) and pressure profiles of 62 nearby massive clusters detected at high significance in the 14-month nominal survey. Careful reconstruction of the SZ signal indicates that most clusters are individually detected at least out to R500. By stacking the radial profiles, we have statistically detected the radial SZ signal out to 3 × R500, i.e., at a density contrast of about 50–100, though the dispersion about the mean profile dominates the statistical errors across the whole radial range. Our measurement is fully consistent with previous Planck results on integrated SZ fluxes, further strengthening the agreement between SZ and X-ray measurements inside R500. Correcting for the effects of the Planck beam, we have calculated the corresponding pressure profiles. This new constraint from SZ measurements is consistent with the X-ray constraints from XMM-Newton in the region in which the profiles overlap (i.e., [0.1–1] R500), and is in fairly good agreement with theoretical predictions within the expected dispersion. At larger radii the average pressure profile is slightly flatter than most predictions from numerical simulations. Combining the SZ and X-ray observed profiles into a joint fit to a generalised pressure profile gives best-fit parameters [P0,c500,γ,α,β ] = [6.41,1.81,0.31,1.33,4.13 ] . Using a reasonable hypothesis for the gas temperature in the cluster outskirts we reconstruct from our stacked pressure profile the gas mass fraction profile out to 3 R500. Within the temperature driven uncertainties, our Planck constraints are compatible with the cosmic baryon fraction and expected gas fraction in halos.

    Item Type: Article
    Additional Information: This article has an erratum: []. Appendices are available in electronic form at
    Keywords: Planck Collaboration; cosmology: observations; galaxies: clusters: general; galaxies: clusters: intracluster medium; submillimeter: general; X-rays: general;
    Academic Unit: Faculty of Science and Engineering > Experimental Physics
    Item ID: 14262
    Identification Number:
    Depositing User: Dr. Anthony Murphy
    Date Deposited: 26 Mar 2021 12:12
    Journal or Publication Title: Astronomy & Astrophysics
    Publisher: EDP Sciences
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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