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dc.date.accessioned2021-01-23T19:52:20Z
dc.date.available2021-01-23T19:52:20Z
dc.date.created2021-01-14T13:54:25Z
dc.date.issued2020
dc.identifier.citationAkrami Cheghasiahi, Yashar Ashdown, M. Aumont, J. Baccigalupi, Carlo Ballardini, M. Banday, Anthony J. Barreiro, R. B. Bartolo, Nicola Basak, S. Benabed, K. Bernard, J.-P. Bersanelli, Marco Bielewicz, Pawel Bond, John Richard Borrill, J. Bouchet, F. R. Boulanger, F. Bracco, A. Bucher, Martin Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Chiang, H. C. Combet, C. Crill, B. P. de Bernardis, P. de Zotti, G. Delabrouille, Jacques Delouis, J.-M. Di Valentino, E. Dickinson, C. Diego, J. M. Ducout, A. Dupac, X. Efstathiou, G. Elsner, F. Enßlin, T. A. Falgarone, E. Fantaye, Yabebal Tadesse Ferrière, K. Finelli, Fabio Forastieri, F. Frailis, M. Fraisse, A. A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R. T. Ghosh, T. González-Nuevo, J. Górski, Krzysztof M. Gruppuso, A. Gudmundsson, Jon E. Guillet, V. Handley, W. Hansen, Frode Kristian Herranz, D. Huang, Z. Jaffe, A. H. Jones, W. C. Keihänen, Elina Keskitalo, R. Kiiveri, K Kim, J. Krachmalnicoff, N. Kunz, Martin Kurki-Suonio, Hannu Lamarre, J.-M. Lasenby, A. Le Jeune, M Levrier, F. Liguori, Michele Lilje, Per Barth Lindholm, V López-Caniego, M. Lubin, P. M. Ma, Y.-Z. Macías-Pérez, J. F. Maggio, G. Maino, Davide Mandolesi, N Mangilli, A Martin, P. G. Martínez-González, E. Matarrese, Sabino McEwen, J. D. Meinhold, P. R. Melchiorri, A Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D Moneti, A Montier, L Morgante, G Natoli, P Pagano, L. Paoletti, D. Pettorino, V. Piacentini, F Polenta, G. Puget, J.-L. Rachen, J. P. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Rosset, C Roudier, G. Rubiño-Martín, J. A. Ruiz-Granados, B. Salvati, L Sandri, M Savelainen, M. Scott, Douglas Soler, J. D. Spencer, L. D. Tauber, J. A. Tavagnacco, D. Toffolatti, L. Tomasi, M. Trombetti, T. Väliviita, Jussi-Pekka Vansyngel, F. Van Tent, B. Vielva, P. Villa, F. Vittorio, N. Wehus, Ingunn Kathrine Zacchei, A Zonca, A. . Planck 2018 results: XI. Polarized dust foregrounds. Astronomy and Astrophysics (A & A). 2020, 641
dc.identifier.urihttp://hdl.handle.net/10852/82560
dc.description.abstractThe study of polarized dust emission has become entwined with the analysis of the cosmic microwave background (CMB) polarization in the quest for the curl-like B -mode polarization from primordial gravitational waves and the low-multipole E -mode polarization associated with the reionization of the Universe. We used the new Planck PR3 maps to characterize Galactic dust emission at high latitudes as a foreground to the CMB polarization and use end-to-end simulations to compute uncertainties and assess the statistical significance of our measurements. We present Planck EE , BB , and TE power spectra of dust polarization at 353 GHz for a set of six nested high-Galactic-latitude sky regions covering from 24 to 71% of the sky. We present power-law fits to the angular power spectra, yielding evidence for statistically significant variations of the exponents over sky regions and a difference between the values for the EE and BB spectra, which for the largest sky region are α E E  = −2.42 ± 0.02 and α B B  = −2.54 ± 0.02, respectively. The spectra show that the TE correlation and E/B power asymmetry discovered by Planck extend to low multipoles that were not included in earlier Planck polarization papers due to residual data systematics. We also report evidence for a positive TB dust signal. Combining data from Planck and WMAP, we have determined the amplitudes and spectral energy distributions (SEDs) of polarized foregrounds, including the correlation between dust and synchrotron polarized emission, for the six sky regions as a function of multipole. This quantifies the challenge of the component-separation procedure that is required for measuring the low- ℓ reionization CMB E -mode signal and detecting the reionization and recombination peaks of primordial CMB B modes. The SED of polarized dust emission is fit well by a single-temperature modified black-body emission law from 353 GHz to below 70 GHz. For a dust temperature of 19.6 K, the mean dust spectral index for dust polarization is β d P = 1.53±0.02. The difference between indices for polarization and total intensity is β d P − β d I = 0.05±0.03. By fitting multi-frequency cross-spectra between Planck data at 100, 143, 217, and 353 GHz, we examine the correlation of the dust polarization maps across frequency. We find no evidence for a loss of correlation and provide lower limits to the correlation ratio that are tighter than values we derive from the correlation of the 217- and 353 GHz maps alone. If the Planck limit on decorrelation for the largest sky region applies to the smaller sky regions observed by sub-orbital experiments, then frequency decorrelation of dust polarization might not be a problem for CMB experiments aiming at a primordial B -mode detection limit on the tensor-to-scalar ratio r  ≃ 0.01 at the recombination peak. However, the Planck sensitivity precludes identifying how difficult the component-separation problem will be for more ambitious experiments targeting lower limits on r .
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titlePlanck 2018 results: XI. Polarized dust foregrounds
dc.typeJournal article
dc.creator.authorAkrami Cheghasiahi, Yashar
dc.creator.authorAshdown, M.
dc.creator.authorAumont, J.
dc.creator.authorBaccigalupi, Carlo
dc.creator.authorBallardini, M.
dc.creator.authorBanday, Anthony J.
dc.creator.authorBarreiro, R. B.
dc.creator.authorBartolo, Nicola
dc.creator.authorBasak, S.
dc.creator.authorBenabed, K.
dc.creator.authorBernard, J.-P.
dc.creator.authorBersanelli, Marco
dc.creator.authorBielewicz, Pawel
dc.creator.authorBond, John Richard
dc.creator.authorBorrill, J.
dc.creator.authorBouchet, F. R.
dc.creator.authorBoulanger, F.
dc.creator.authorBracco, A.
dc.creator.authorBucher, Martin
dc.creator.authorBurigana, C.
dc.creator.authorCalabrese, E.
dc.creator.authorCardoso, J.-F.
dc.creator.authorCarron, J.
dc.creator.authorChiang, H. C.
dc.creator.authorCombet, C.
dc.creator.authorCrill, B. P.
dc.creator.authorde Bernardis, P.
dc.creator.authorde Zotti, G.
dc.creator.authorDelabrouille, Jacques
dc.creator.authorDelouis, J.-M.
dc.creator.authorDi Valentino, E.
dc.creator.authorDickinson, C.
dc.creator.authorDiego, J. M.
dc.creator.authorDucout, A.
dc.creator.authorDupac, X.
dc.creator.authorEfstathiou, G.
dc.creator.authorElsner, F.
dc.creator.authorEnßlin, T. A.
dc.creator.authorFalgarone, E.
dc.creator.authorFantaye, Yabebal Tadesse
dc.creator.authorFerrière, K.
dc.creator.authorFinelli, Fabio
dc.creator.authorForastieri, F.
dc.creator.authorFrailis, M.
dc.creator.authorFraisse, A. A.
dc.creator.authorFranceschi, E.
dc.creator.authorFrolov, A.
dc.creator.authorGaleotta, S.
dc.creator.authorGalli, S.
dc.creator.authorGanga, K.
dc.creator.authorGénova-Santos, R. T.
dc.creator.authorGhosh, T.
dc.creator.authorGonzález-Nuevo, J.
dc.creator.authorGórski, Krzysztof M.
dc.creator.authorGruppuso, A.
dc.creator.authorGudmundsson, Jon E.
dc.creator.authorGuillet, V.
dc.creator.authorHandley, W.
dc.creator.authorHansen, Frode Kristian
dc.creator.authorHerranz, D.
dc.creator.authorHuang, Z.
dc.creator.authorJaffe, A. H.
dc.creator.authorJones, W. C.
dc.creator.authorKeihänen, Elina
dc.creator.authorKeskitalo, R.
dc.creator.authorKiiveri, K
dc.creator.authorKim, J.
dc.creator.authorKrachmalnicoff, N.
dc.creator.authorKunz, Martin
dc.creator.authorKurki-Suonio, Hannu
dc.creator.authorLamarre, J.-M.
dc.creator.authorLasenby, A.
dc.creator.authorLe Jeune, M
dc.creator.authorLevrier, F.
dc.creator.authorLiguori, Michele
dc.creator.authorLilje, Per Barth
dc.creator.authorLindholm, V
dc.creator.authorLópez-Caniego, M.
dc.creator.authorLubin, P. M.
dc.creator.authorMa, Y.-Z.
dc.creator.authorMacías-Pérez, J. F.
dc.creator.authorMaggio, G.
dc.creator.authorMaino, Davide
dc.creator.authorMandolesi, N
dc.creator.authorMangilli, A
dc.creator.authorMartin, P. G.
dc.creator.authorMartínez-González, E.
dc.creator.authorMatarrese, Sabino
dc.creator.authorMcEwen, J. D.
dc.creator.authorMeinhold, P. R.
dc.creator.authorMelchiorri, A
dc.creator.authorMigliaccio, M.
dc.creator.authorMiville-Deschênes, M.-A.
dc.creator.authorMolinari, D
dc.creator.authorMoneti, A
dc.creator.authorMontier, L
dc.creator.authorMorgante, G
dc.creator.authorNatoli, P
dc.creator.authorPagano, L.
dc.creator.authorPaoletti, D.
dc.creator.authorPettorino, V.
dc.creator.authorPiacentini, F
dc.creator.authorPolenta, G.
dc.creator.authorPuget, J.-L.
dc.creator.authorRachen, J. P.
dc.creator.authorReinecke, M.
dc.creator.authorRemazeilles, M.
dc.creator.authorRenzi, A.
dc.creator.authorRocha, G.
dc.creator.authorRosset, C
dc.creator.authorRoudier, G.
dc.creator.authorRubiño-Martín, J. A.
dc.creator.authorRuiz-Granados, B.
dc.creator.authorSalvati, L
dc.creator.authorSandri, M
dc.creator.authorSavelainen, M.
dc.creator.authorScott, Douglas
dc.creator.authorSoler, J. D.
dc.creator.authorSpencer, L. D.
dc.creator.authorTauber, J. A.
dc.creator.authorTavagnacco, D.
dc.creator.authorToffolatti, L.
dc.creator.authorTomasi, M.
dc.creator.authorTrombetti, T.
dc.creator.authorVäliviita, Jussi-Pekka
dc.creator.authorVansyngel, F.
dc.creator.authorVan Tent, B.
dc.creator.authorVielva, P.
dc.creator.authorVilla, F.
dc.creator.authorVittorio, N.
dc.creator.authorWehus, Ingunn Kathrine
dc.creator.authorZacchei, A
dc.creator.authorZonca, A.
cristin.unitcode185,15,3,0
cristin.unitnameInstitutt for teoretisk astrofysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1871383
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy and Astrophysics (A & A)&rft.volume=641&rft.spage=&rft.date=2020
dc.identifier.jtitleAstronomy and Astrophysics (A & A)
dc.identifier.volume641
dc.identifier.pagecount33
dc.identifier.doihttps://doi.org/10.1051/0004-6361/201832618
dc.identifier.urnURN:NBN:no-85422
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0004-6361
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/82560/2/aa32618-18.pdf
dc.type.versionPublishedVersion
cristin.articleidA11


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