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 Universite Paris 13 CNRS Centre National de la Recherche Scientifique Kavli Institute for Cosmology Cambridge International School for Advanced Studies IRAP Instituto de Física de Cantabria (CSIC-Universidad de Cantabria) Universit'a di Rome Sapienza Instituto Carlos I de Física Teórica y Computacional CNRS/IN2P3 INAF/IASF Milano Jet Propulsion Laboratory, California Institute of Technology University of Manchester University of Oviedo University of Toronto University of California at Berkeley Universite Paris Sorbonne - Paris IV Université Sorbonne Paris Cité INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna University of Oxford Télécom ParisTech Princeton University Niels Bohr Institute Stanford University Imperial College London Universite Paris-Sud LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres Department of Mathematics and Systems Analysis 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 at Santa Barbara University College London California Institute of Technology University of Nottingham National University of Ireland, Galway RAS - Pn Lebedev Physics Institute Institut für Theoretische Astrophysik University of Southern California University of Alberta Osservatorio Astronomico Roma Institute for Space Sciences Instituto Astrofisico de Canarias Università di Roma Tor Vergata Department of Applied Physics University of British Columbia Special Astrophysical Observatory, Russian Academy of Sciences ESTEC - European Space Research and Technology Centre Università degli Studi e-Campus Université de Genève Trinity College Dublin Université Paris Diderot |
Series: | Astronomy and Astrophysics, Volume 594 |
ISSN: | 0004-6361 1432-0746 |
DOI-number: | 10.1051/0004-6361/201525829 |
Subject: | Astronomy and Astrophysics, Space and Planetary Science, 115 Astronomy and space science |
Keywords: | Cosmic background radiation, Cosmological parameters, Cosmology: observations, Gravitation, Methods: data analysis, Methods: statistical, Astronomy and Astrophysics, Space and Planetary Science, 115 Astronomy and space science |
|
|
This publication is imported from Aalto University Research information portal: https://research.aalto.fi
> View this publication in Research information portal > Other link related to publication (Research information portal) |
|
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 . DOI: 10.1051/0004-6361/201525829 |
|
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).
|
|
|
|
|
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |
Page content by: Aalto University Learning Centre | Privacy policy of the service | About this site