Planck 2015 results XVIII. Background geometry and topology of the Universe

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Ade, P. A. R. (author)

Planck 2015 results XVIII. Background geometry and topology of the Universe

Article/chapterEnglish2016

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2016-09-20
EDP Sciences,2016
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:su-140350
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-140350URI
https://doi.org/10.1051/0004-6361/201525829DOI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

Maps of cosmic microwave background (CMB) temperature and polarization from the 2015 release of Planck data provide the highest quality 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 chi(rec)), 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 R-i of the largest sphere inscribed in the fundamental domain (at log-likelihood ratio Delta ln L > -5 relative to a simply-connected flat Planck best-fit model) are: R-i > 0.97 chi(rec) for the T3 cubic torus; and R-i > 0.56 chi(rec) for the T1 slab. The limit for the T3 cubic torus from the matched-circles search is numerically equivalent, R-i > 0.97 chi(rec) 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 (omega/H)(0) < 7.6 x 10(-10) (95% CL).

Subject headings and genre

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
cosmic background radiation
cosmology: observations
cosmological parameters
gravitation
methods: data analysis
methods:statistical

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Aghanim, N. (author)
Arnaud, M. (author)
Ashdown, M. (author)
Aumont, J. (author)
Baccigalupi, C. (author)
Banday, A. J. (author)
Barreiro, R. B. (author)
Bartolo, N. (author)
Basak, S. (author)
Battaner, E. (author)
Benabed, K. (author)
Benoit, A. (author)
Benoit-Levy, A. (author)
Bernard, J-P. (author)
Bersanelli, M. (author)
Bielewicz, P. (author)
Bock, J. J. (author)
Bonaldi, A. (author)
Bonavera, L. (author)
Bond, J. R. (author)
Borrill, J. (author)
Bouchet, F. R. (author)
Bucher, M. (author)
Burigana, C. (author)
Butler, R. C. (author)
Calabrese, E. (author)
Cardoso, J. -F. (author)
Catalano, A. (author)
Challinor, A. (author)
Chamballu, A. (author)
Chiang, H. C. (author)
Christensen, P. R. (author)
Church, S. (author)
Clements, D. L. (author)
Colombi, S. (author)
Colombo, L. P. L. (author)
Combet, C. (author)
Couchot, F. (author)
Coulais, A. (author)
Crill, B. P. (author)
Curto, A. (author)
Cuttaia, F. (author)
Danese, L. (author)
Davies, R. D. (author)
Davis, R. J. (author)
de Bernardis, P. (author)
de Rosa, A. (author)
de Zotti, G. (author)
Delabrouille, J. (author)
Desert, F. -X. (author)
Diego, J. M. (author)
Dole, H. (author)
Donzelli, S. (author)
Dore, O. (author)
Douspis, M. (author)
Ducout, A. (author)
Dupac, X. (author)
Efstathiou, G. (author)
Elsner, F. (author)
Ensslin, T. A. (author)
Eriksen, H. K. (author)
Feeney, S. (author)
Fergusson, J. (author)
Finelli, F. (author)
Forni, O. (author)
Frailis, M. (author)
Fraisse, A. A. (author)
Franceschi, E. (author)
Frejse, A. (author)
Galeotta, S. (author)
Galli, S. (author)
Ganga, K. (author)
Giard, M. (author)
Giraud-Heraud, Y. (author)
Gjerlow, E. (author)
Gonzalez-Nuevo, J. (author)
Gorski, K. M. (author)
Gratton, S. (author)
Gregorio, A. (author)
Gruppuso, A. (author)
Gudmundsson, Jón E.Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Nordiska institutet för teoretisk fysik (Nordita),Princeton University, USA(Swepub:su)jgudm (author)
Hansen, F. K. (author)
Hanson, D. (author)
Harrison, D. L. (author)
Henrot-Versille, S. (author)
Hernandez-Monteagudo, C. (author)
Herranz, D. (author)
Hildebrandt, S. R. (author)
Hivon, E. (author)
Hobson, M. (author)
Holmes, W. A. (author)
Hornstrup, A. (author)
Hovest, W. (author)
Huffenberger, K. M. (author)
Hurier, G. (author)
Jaffe, A. H. (author)
Jaffe, T. R. (author)
Jones, W. C. (author)
Juvela, M. (author)
Keihanen, E. (author)
Keskitalo, R. (author)
Kisner, T. S. (author)
Knoche, J. (author)
Kunz, M. (author)
Kurki-Suonio, H. (author)
Lagache, G. (author)
Lahteenmaki, A. (author)
Lamarre, J. -M. (author)
Lasenby, A. (author)
Lattanzi, M. (author)
Lawrence, C. R. (author)
Leonardi, R. (author)
Lesgourgues, J. (author)
Levrier, F. (author)
Liguori, M. (author)
Lilje, P. B. (author)
Linden-Vornle, M. (author)
Lopez-Caniego, M. (author)
Lubin, P. M. (author)
Macias-Perez, J. F. (author)
Maggio, G. (author)
Maino, D. (author)
Mandolesi, N. (author)
Mangilli, A. (author)
Maris, M. (author)
Martin, P. G. (author)
Martinez-Gonzalez, E. (author)
Masi, S. (author)
Matarrese, S. (author)
McEwen, J. D. (author)
McGehee, P. (author)
Meinhold, P. R. (author)
Melchiorri, A. (author)
Mendes, L. (author)
Mennella, A. (author)
Migliaccio, M. (author)
Mitra, S. (author)
Miville-Deschenes, M. -A. (author)
Moneti, A. (author)
Montier, L. (author)
Morgante, G. (author)
Mortlock, D. (author)
Moss, A. (author)
Munshi, D. (author)
Murphy, J. A. (author)
Naselsky, P. (author)
Nati, F. (author)
Natoli, P. (author)
Netterfield, C. B. (author)
Norgaard-Nielsen, H. U. (author)
Noviello, F. (author)
Novikov, D. (author)
Novikov, I. (author)
Oxborrow, C. A. (author)
Paci, F. (author)
Pagano, L. (author)
Pajot, F. (author)
Paoletti, D. (author)
Pasian, F. (author)
Patanchon, G. (author)
Peiris, H. V. (author)
Perdereau, O. (author)
Perotto, L. (author)
Perrotta, F. (author)
Pettorino, V. (author)
Piacentini, F. (author)
Piat, M. (author)
Pierpaoli, E. (author)
Pietrobon, D. (author)
Plaszczynski, S. (author)
Pogosyan, D. (author)
Pointecouteau, E. (author)
Polenta, G. (author)
Popa, L. (author)
Pratt, G. W. (author)
Prezeau, G. (author)
Prunet, S. (author)
Puget, J. -L. (author)
Rachen, J. P. (author)
Rebolo, R. (author)
Reinecke, M. (author)
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Renault, C. (author)
Renzi, A. (author)
Ristorcelli, I. (author)
Rocha, G. (author)
Rosset, C. (author)
Rossetti, M. (author)
Roudier, G. (author)
Rowan-Robinson, M. (author)
Rubino-Martin, J. A. (author)
Rusholme, B. (author)
Sandri, M. (author)
Santos, D. (author)
Savelainen, M. (author)
Savini, G. (author)
Scott, D. (author)
Seiffert, M. D. (author)
Shellard, E. P. S. (author)
Spencer, L. D. (author)
Stolyarov, V. (author)
Stompor, R. (author)
Sudiwala, R. (author)
Sutton, D. (author)
Suur-Uski, A. -S. (author)
Sygnet, J. -F. (author)
Tauber, J. A. (author)
Terenzi, L. (author)
Toffolatti, L. (author)
Tomasi, M. (author)
Tristram, M. (author)
Tucci, M. (author)
Tuovinen, J. (author)
Valenziano, L. (author)
Valiviita, J. (author)
Van Tent, F. (author)
Vielva, P. (author)
Villa, F. (author)
Wade, L. A. (author)
Wandelt, B. D. (author)
Wehus, I. K. (author)
Yvon, D. (author)
Zacchei, A. (author)
Zonca, A. (author)
Stockholms universitetFysikum (creator_code:org_t)

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By the author/editor: Ade, P. A. R.; Aghanim, N.; Arnaud, M.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; show more...; Banday, A. J.; Barreiro, R. B.; Bartolo, N.; Basak, S.; Battaner, E.; Benabed, K.; Benoit, A.; Benoit-Levy, 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. ...; 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.; Desert, F. -X.; Diego, J. M.; Dole, H.; Donzelli, S.; Dore, 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.; Frejse, A.; Galeotta, S.; Galli, S.; Ganga, K.; Giard, M.; Giraud-Heraud, Y ...; Gjerlow, E.; Gonzalez-Nuevo, ...; Gorski, K. M.; Gratton, S.; Gregorio, A.; Gruppuso, A.; Gudmundsson, Jón ...; Hansen, F. K.; Hanson, D.; Harrison, D. L.; Henrot-Versille, ...; Hernandez-Montea ...; Herranz, D.; Hildebrandt, S. ...; Hivon, E.; Hobson, M.; Holmes, W. A.; Hornstrup, A.; Hovest, W.; Huffenberger, K. ...; Hurier, G.; Jaffe, A. H.; Jaffe, T. R.; Jones, W. C.; Juvela, M.; Keihanen, E.; Keskitalo, R.; Kisner, T. S.; Knoche, J.; Kunz, M.; Kurki-Suonio, H.; Lagache, G.; Lahteenmaki, A.; Lamarre, J. -M.; Lasenby, A.; Lattanzi, M.; Lawrence, C. R.; Leonardi, R.; Lesgourgues, J.; Levrier, F.; Liguori, M.; Lilje, P. B.; Linden-Vornle, M ...; Lopez-Caniego, M ...; Lubin, P. M.; Macias-Perez, J. ...; Maggio, G.; Maino, D.; Mandolesi, N.; Mangilli, A.; Maris, M.; Martin, P. G.; Martinez-Gonzale ...; Masi, S.; Matarrese, S.; McEwen, J. D.; McGehee, P.; Meinhold, P. R.; Melchiorri, A.; Mendes, L.; Mennella, A.; Migliaccio, M.; Mitra, S.; Miville-Deschene ...; Moneti, A.; Montier, L.; Morgante, G.; Mortlock, D.; Moss, A.; Munshi, D.; Murphy, J. A.; Naselsky, P.; Nati, F.; Natoli, P.; Netterfield, C. ...; Norgaard-Nielsen ...; 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.; Prezeau, 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, ...; Rubino-Martin, J ...; Rusholme, B.; Sandri, M.; Santos, D.; Savelainen, M.; Savini, G.; Scott, D.; Seiffert, M. D.; Shellard, E. P. ...; 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.; show less...

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