Title: | Planck 2015 results |
Author(s): | Ade, P. A R ; Aghanim, N. ; Arnaud, M. ; Ashdown, M. ; Aumont, J. ; Baccigalupi, C. ; Banday, A. J. ; Barreiro, R. B. ; Bartolo, N. ; Basak, S. ; Battaner, E. ; Benabed, K. ; Benoît, A. ; Benoit-Lévy, A. ; Bernard, J. P. ; Bersanelli, M. ; Bielewicz, P. ; Bock, J. J. ; Bonaldi, A. ; Bonavera, L. ; Bond, J. R. ; Borrill, J. ; Bouchet, F. R. ; Bucher, M. ; Burigana, C. ; Butler, R. C. ; Calabrese, E. ; Cardoso, J. F. ; Catalano, A. ; Challinor, A. ; Chamballu, A. ; Chiang, H. C. ; Christensen, P. R. ; Church, S. ; Clements, D. L. ; Colombi, S. ; Colombo, L. P L ; Combet, C. ; Couchot, F. ; Coulais, A. ; Crill, B. P. ; Curto, A. ; Cuttaia, F. ; Danese, L. ; Davies, R. D. ; Davis, R. J. ; De Bernardis, P. ; De Rosa, A. ; De Zotti, G. ; Delabrouille, J. ; Désert, F. X. ; Diego, J. M. ; Dole, H. ; Donzelli, S. ; Doré, O. ; Douspis, M. ; Ducout, A. ; Dupac, X. ; Efstathiou, G. ; Elsner, F. ; Enßlin, T. A. ; Eriksen, H. K. ; Feeney, S. ; Fergusson, J. ; Finelli, F. ; Forni, O. ; Frailis, M. ; Fraisse, A. A. ; Franceschi, E. ; Frejsel, A. ; Galeotta, S. ; Galli, S. ; Ganga, K. ; Giard, M. ; Giraud-Héraud, Y. ; Gjerløw, E. ; González-Nuevo, J. ; Górski, K. M. ; Gratton, S. ; Gregorio, A. ; Gruppuso, A. ; Gudmundsson, J. E. ; Hansen, F. K. ; Hanson, D. ; Harrison, D. L. ; Henrot-Versillé, S. ; Hernández-Monteagudo, C. ; Herranz, D. ; Hildebrandt, S. R. ; Hivon, E. ; Hobson, M. ; Holmes, W. A. ; Hornstrup, A. ; Hovest, W. ; Huffenberger, K. M. ; Hurier, G. ; Jaffe, A. H. ; Jaffe, T. R. ; Jones, W. C. ; Juvela, M. ; Keihänen, E. ; Keskitalo, R. ; Kisner, T. S. ; Knoche, J. ; Kunz, M. ; Kurki-Suonio, H. ; Lagache, G. ; Lähteenmäki, A. ; Lamarre, J. M. ; Lasenby, A. ; Lattanzi, M. ; Lawrence, C. R. ; Leonardi, R. ; Lesgourgues, J. ; Levrier, F. ; Liguori, M. ; Lilje, P. B. ; Linden-Vørnle, M. ; López-Caniego, M. ; Lubin, P. M. ; Maciás-Pérez, J. F. ; Maggio, G. ; Maino, D. ; Mandolesi, N. ; Mangilli, A. ; Maris, M. ; Martin, P. G. ; Martínez-González, E. ; Masi, S. ; Matarrese, S. ; Mcewen, J. D. ; Mcgehee, P. ; Meinhold, P. R. ; Melchiorri, A. ; Mendes, L. ; Mennella, A. ; Migliaccio, M. ; Mitra, S. ; Miville-Deschênes, M. A. ; Moneti, A. ; Montier, L. ; Morgante, G. ; Mortlock, D. ; Moss, A. ; Munshi, D. ; Murphy, J. A. ; Naselsky, P. ; Nati, F. ; Natoli, P. ; Netterfield, C. B. ; Nørgaard-Nielsen, H. U. ; Noviello, F. ; Novikov, D. ; Novikov, I. ; Oxborrow, C. A. ; Paci, F. ; Pagano, L. ; Pajot, F. ; Paoletti, D. ; Pasian, F. ; Patanchon, G. ; Peiris, H. V. ; Perdereau, O. ; Perotto, L. ; Perrotta, F. ; Pettorino, V. ; Piacentini, F. ; Piat, M. ; Pierpaoli, E. ; Pietrobon, D. ; Plaszczynski, S. ; Pogosyan, D. ; Pointecouteau, E. ; Polenta, G. ; Popa, L. ; Pratt, G. W. ; Prézeau, G. ; Prunet, S. ; Puget, J. L. ; Rachen, J. P. ; Rebolo, R. ; Reinecke, M. ; Remazeilles, M. ; Renault, C. ; Renzi, A. ; Ristorcelli, I. ; Rocha, G. ; Rosset, C. ; Rossetti, M. ; Roudier, G. ; Rowan-Robinson, M. ; Rubinõ-Martín, J. A. ; Rusholme, B. ; Sandri, M. ; Santos, D. ; Savelainen, M. ; Savini, G. ; Scott, D. ; Seiffert, M. D. ; Shellard, E. P S ; Spencer, L. D. ; Stolyarov, V. ; Stompor, R. ; Sudiwala, R. ; Sutton, D. ; Suur-Uski, A. S. ; Sygnet, J. F. ; Tauber, J. A. ; Terenzi, L. ; Toffolatti, L. ; Tomasi, M. ; Tristram, M. ; Tucci, M. ; Tuovinen, J. ; Valenziano, L. ; Valiviita, J. ; Van Tent, F. ; Vielva, P. ; Villa, F. ; Wade, L. A. ; Wandelt, B. D. ; Wehus, I. K. ; Yvon, D. ; Zacchei, A. ; Zonca, A. |
Date: | 2016-10-01 |
Language: | en |
Pages: | 21 |
Department: | Cardiff University Université Paris 13 Centre National de la Recherche Scientifique (CNRS) Kavli Institute for Cosmology Cambridge International School for Advanced Studies IRAP Universidad de Cantabria Sapienza University of Rome Instituto Carlos I de Física Teórica y Computacional Institut national de physique nucléaire et de physique des particules INAF/IASF Milano Jet Propulsion Laboratory University of Manchester University of Oviedo University of Toronto University of California Berkeley Universite Paris Sorbonne - Paris IV Université Sorbonne Paris Cité Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna University of Oxford Telecom ParisTech Princeton University Niels Bohr Institute Stanford University Imperial College London Université Paris-Sud LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres Jodrell Bank Centre for Astrophysics Università La Sapienza Urbanización Villafranca Del Castillo University of Cambridge Max-Planck-Institut für Astrophysik University of Oslo Osservatorio Astronomico di Trieste University of Chicago University of Warsaw Stockholm University McGill University Danmarks Tekniske Universitet Florida State University University of Helsinki Lawrence Berkeley National Laboratory Department of Radio Science and Engineering Centro de Gestão e Estudos Estratégicos CERN University of California Santa Barbara University College London California Institute of Technology University of Nottingham National University of Ireland, Galway RAS - P.N. Lebedev Physics Institute Institut für Theoretische Astrophysik University of Southern California University of Alberta Osservatorio Astronomico Roma Institute for Space Sciences Instituto de Astrofísica de Canarias Università di Roma Tor Vergata University of British Columbia Special Astrophysical Observatory of the Russian Academy of Sciences European Space Research and Technology Centre Università degli Studi eCampus University of Geneva Trinity College Dublin Université Paris Diderot |
Series: | Astronomy and Astrophysics, Volume 594 |
ISSN: | 0004-6361 1432-0746 |
DOI-number: | 10.1051/0004-6361/201525829 |
Keywords: | Cosmic background radiation, Cosmological parameters, Cosmology: observations, Gravitation, Methods: data analysis, Methods: statistical |
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Ade , P A R , Aghanim , N , Arnaud , M , Ashdown , M , Aumont , J , Baccigalupi , C , Banday , A J , Barreiro , R B , Bartolo , N , Basak , S , Battaner , E , Benabed , K , Benoît , A , Benoit-Lévy , A , Bernard , J P , Bersanelli , M , Bielewicz , P , Bock , J J , Bonaldi , A , Bonavera , L , Bond , J R , Borrill , J , Bouchet , F R , Bucher , M , Burigana , C , Butler , R C , Calabrese , E , Cardoso , J F , Catalano , A , Challinor , A , Chamballu , A , Chiang , H C , Christensen , P R , Church , S , Clements , D L , Colombi , S , Colombo , L P L , Combet , C , Couchot , F , Coulais , A , Crill , B P , Curto , A , Cuttaia , F , Danese , L , Davies , R D , Davis , R J , De Bernardis , P , De Rosa , A , De Zotti , G , Delabrouille , J , Désert , F X , Diego , J M , Dole , H , Donzelli , S , Doré , O , Douspis , M , Ducout , A , Dupac , X , Efstathiou , G , Elsner , F , Enßlin , T A , Eriksen , H K , Feeney , S , Fergusson , J , Finelli , F , Forni , O , Frailis , M , Fraisse , A A , Franceschi , E , Frejsel ,A , Galeotta , S , Galli , S , Ganga , K , Giard , M , Giraud-Héraud , Y , Gjerløw , E , González-Nuevo , J , Górski , K M , Gratton , S , Gregorio , A , Gruppuso , A , Gudmundsson , J E , Hansen , F K , Hanson , D , Harrison , D L , Henrot-Versillé , S , Hernández-Monteagudo , C , Herranz , D , Hildebrandt , S R , Hivon , E , Hobson , M , Holmes , W A , Hornstrup , A , Hovest , W , Huffenberger , K M , Hurier , G , Jaffe , A H , Jaffe , T R , Jones , W C , Juvela , M , Keihänen , E , Keskitalo , R , Kisner , T S , Knoche , J , Kunz , M , Kurki-Suonio , H , Lagache , G , Lähteenmäki , A , Lamarre , J M , Lasenby , A , Lattanzi , M , Lawrence , C R , Leonardi , R , Lesgourgues , J , Levrier , F , Liguori , M , Lilje , P B , Linden-Vørnle , M , López-Caniego , M , Lubin , P M , Maciás-Pérez , J F , Maggio , G , Maino , D , Mandolesi , N , Mangilli , A , Maris , M , Martin , P G , Martínez-González , E , Masi , S , Matarrese , S , Mcewen , J D , Mcgehee , P , Meinhold , P R , Melchiorri , A , Mendes , L , Mennella , A , Migliaccio , M , Mitra , S , Miville-Deschênes , M A , Moneti , A , Montier , L , Morgante , G , Mortlock , D , Moss , A , Munshi , D , Murphy , J A , Naselsky , P , Nati , F , Natoli , P , Netterfield , C B , Nørgaard-Nielsen , H U , Noviello , F , Novikov , D , Novikov , I , Oxborrow , C A , Paci , F , Pagano , L , Pajot , F , Paoletti , D , Pasian , F , Patanchon , G , Peiris , H V , Perdereau , O , Perotto , L , Perrotta , F , Pettorino , V , Piacentini , F , Piat , M , Pierpaoli , E , Pietrobon , D , Plaszczynski , S , Pogosyan , D , Pointecouteau , E , Polenta , G , Popa , L , Pratt , G W , Prézeau , G , Prunet , S , Puget , J L , Rachen , J P , Rebolo , R , Reinecke , M , Remazeilles , M , Renault , C , Renzi , A , Ristorcelli , I , Rocha , G , Rosset , C , Rossetti , M , Roudier , G , Rowan-Robinson , M , Rubinõ-Martín , J A , Rusholme , B , Sandri , M , Santos , D , Savelainen , M , Savini , G , Scott , D , Seiffert , M D , Shellard , E P S , Spencer , L D , Stolyarov , V , Stompor , R , Sudiwala , R , Sutton , D , Suur-Uski , A S , Sygnet , J F , Tauber , J A , Terenzi , L , Toffolatti , L , Tomasi , M , Tristram , M , Tucci , M , Tuovinen , J , Valenziano , L , Valiviita , J , Van Tent , F , Vielva , P , Villa , F , Wade , L A , Wandelt , B D , Wehus , I K , Yvon , D , Zacchei , A & Zonca , A 2016 , ' Planck 2015 results : XVIII. Background geometry and topology of the Universe ' , Astronomy and Astrophysics , vol. 594 , A18 . https://doi.org/10.1051/0004-6361/201525829 |
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Abstract:Maps of cosmic microwave background (CMB) temperature and polarization from the 2015 release of Planck data provide the highestquality full-sky view of the surface of last scattering available to date. This enables us to detect possible departures from a globally isotropic cosmology. We present the first searches using CMB polarization for correlations induced by a possible non-trivial topology with a fundamental domain that intersects, or nearly intersects, the last-scattering surface (at comoving distance χrec), both via a direct scan for matched circular patterns at the intersections and by an optimal likelihood calculation for specific topologies. We specialize to flat spaces with cubic toroidal (T3) and slab (T1) topologies, finding that explicit searches for the latter are sensitive to other topologies with antipodal symmetry. These searches yield no detection of a compact topology with a scale below the diameter of the last-scattering surface. The limits on the radius i of the largest sphere inscribed in the fundamental domain (at log-likelihood ratio Δ >-5 relative to a simply-connected flat Planck best-fit model) are: i > 0.97 χrec for the T3 cubic torus; and i > 0.56 χrec for the T1 slab. The limit for the T3 cubic torus from the matched-circles search is numerically equivalent, i > 0.97 χrec at 99% confidence level from polarization data alone. We also perform a Bayesian search for an anisotropic global Bianchi VIIh geometry. In the non-physical setting, where the Bianchi cosmology is decoupled from the standard cosmology, Planck temperature data favour the inclusion of a Bianchi component with a Bayes factor of at least 2.3 units of log-evidence. However, the cosmological parameters that generate this pattern are in strong disagreement with those found from CMB anisotropy data alone. Fitting the induced polarization pattern for this model to the Planck data requires an amplitude of-0.10 ± 0.04 compared to the value of + 1 if the model were to be correct. In the physically motivated setting, where the Bianchi parameters are coupled and fitted simultaneously with the standard cosmological parameters, we find no evidence for a Bianchi VIIh cosmology and constrain the vorticity of such models to (ω/H)0 < 7.6 × 10-10 (95% CL).
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