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Planck intermediate results: XLIX. Parity-violation constraints from polarization data

Aghanim, N.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A. J.; Barreiro, R. B.; Bartolo, N.; Basak, S.; Benabed, K.; Bernard, J.-P.; Bersanelli, M.; Bielewicz, P.; Bonavera, L.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Burigana, C.; Calabrese, E.; Cardoso, J.-F.; Carron, J.; Chiang, H. C.; Colombo, L. P. L.; Comis, B.; Contreras, D.; Couchot, F.; Coulais, A.; Crill, B. P.; Curto, A.; Cuttaia, F.; de Bernardis, P.; de Rosa, A.; de Zotti, G.; Delabrouille, J.; Désert, F.-X.; Di Valentino, E.; Dickinson, C.; Diego, J. M.; Doré, O.; Ducout, A.; Dupac, X.; Dusini, S.; Elsner, F.; Enßlin, T. A.; Eriksen, Hans Kristian Kamfjord; Fantaye, Yabebal Tadesse; Finelli, F.; Forastieri, F.; Frailis, M.; Franceschi, E.; Frolov, A; Galeotta, S; Galli, S; Ganga, K; Genova-Santos, RT; Gerbino, M; Giraud-Heraud, Y; Gonzalez-Nuevo, J; Gorski, KM; Gruppuso, A; Gudmundsson, JE; Hansen, Frode Kristian; Henrot-Versille, S; Herranz, D; Hivon, E; Huang, Z; Jaffe, AH; Jones, WC; Keihänen, E; Keskitalo, R; Kiiveri, K; Krachmalnicoff, N; Kunz, M; Kurki-Suonio, H; Lamarre, JM; Langer, M; Lasenby, A; Lattanzi, M; Lawrence, CR; Le Jeune, M; Leahy, JP; Levrier, F; Liguori, M; Lilje, Per Barth; Lindholm, V; Lopez-Caniego, M; Ma, YZ; MacIas-Perez, JF; Maggio, G; Maino, D; Mandolesi, N; Maris, M; Martin, PG; Martinez-Gonzalez, E; Matarrese, S; Mauri, N; McEwen, JD; Meinhold, PR; Melchiorri, A; Mennella, A; Migliaccio, M; Miville-Deschenes, MA; Molinari, D; Moneti, A; Morgante, G; Moss, A; Natoli, P; Pagano, L; Paoletti, D; Patanchon, G; Patrizii, L; Perotto, L; Pettorino, V; Piacentini, F; Polastri, L; Polenta, G; Rachen, JP; Racine, Benjamin; Reinecke, M; Remazeilles, M; Renzi, A; Rocha, G; Rosset, C; Rossetti, M; Roudier, G; Rubino-Martin, JA; Ruiz-Granados, B; Sandri, M; Savelainen, M; Scott, D; Sirignano, C; Sirri, G; Spencer, LD; Suur-Uski, AS; Tauber, JA; Tavagnacco, D; Tenti, M; Toffolatti, L; Tomasi, M; Tristram, M; Trombetti, T; Valiviita, J; Van Tent, F; Vielva, P; Villa, F; Vittorio, N; Wandelt, BD; Wehus, Ingunn Kathrine; Zacchei, A; Zonca, A
Journal article; PublishedVersion; Peer reviewed
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Intermediate_XLIX.pdf (1.386Mb)
Year
2016
Permanent link
http://urn.nb.no/URN:NBN:no-58110

CRIStin
1440168

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Appears in the following Collection
  • Institutt for teoretisk astrofysikk [690]
  • CRIStin høstingsarkiv [15189]
Original version
Astronomy and Astrophysics. 2016, 596:A110, DOI: http://dx.doi.org/10.1051/0004-6361/201629018
Abstract
Parity-violating extensions of the standard electromagnetic theory cause in vacuo rotation of the plane of polarization of propagating photons. This effect, also known as cosmic birefringence, has an impact on the cosmic microwave background (CMB) anisotropy angular power spectra, producing non-vanishing T–B and E–B correlations that are otherwise null when parity is a symmetry. Here we present new constraints on an isotropic rotation, parametrized by the angle α, derived from Planck 2015 CMB polarization data. To increase the robustness of our analyses, we employ two complementary approaches, in harmonic space and in map space, the latter based on a peak stacking technique. The two approaches provide estimates for α that are in agreement within statistical uncertainties and are very stable against several consistency tests.Considering the T–B and E–B information jointly, we find from the harmonic analysis and from the stacking approach. These constraints are compatible with no parity violation and are dominated by the systematic uncertainty in the orientation of Planck’s polarization-sensitive bolometers.
 
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