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dc.date.accessioned2021-01-17T20:06:59Z
dc.date.available2021-01-17T20:06:59Z
dc.date.created2021-01-08T11:11:20Z
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. Bersanelli, Marco Bielewicz, Pawel Bond, John Richard Borrill, J. Bouchet, F. R. Boulanger, F. Bucher, Martin Burigana, C. Calabrese, E. Cardoso, J.-F. Carron, J. Casaponsa, B. Challinor, A. Colombo, L. P. L. Combet, C. Crill, B. P. Cuttaia, F. de Bernardis, P. de Rosa, A. de Zotti, G. Delabrouille, Jacques Delouis, J.-M. Di Valentino, E. Dickinson, C. Diego, J. M. Donzelli, Simona Doré, O. Ducout, A. Dupac, X. Efstathiou, G. Elsner, F. Enßlin, T. A. Eriksen, Hans Kristian Kamfjord Falgarone, E. Fernández-Cobos, R Finelli, Fabio Forastieri, F. Frailis, M. Fraisse, A. A. Franceschi, E. Frolov, A. Galeotta, S. Galli, S. Ganga, K. Génova-Santos, R. T. Gerbino, M. Ghosh, T. González-Nuevo, J. Górski, Krzysztof M. Gratton, S. Gruppuso, A. Gudmundsson, Jon E. Handley, W. Hansen, Frode Kristian Helou, G. Herranz, D. Hildebrandt, S. R. Huang, Z. Jaffe, A. H. Karakci, Ata Keihänen, Elina Keskitalo, R. Kiiveri, K Kim, J. Kisner, T. S. Krachmalnicoff, N. Kunz, Martin Kurki-Suonio, Hannu Lagache, G Lamarre, J.-M. Lasenby, A Lattanzi, M Lawrence, C. R. 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 Marcos-Caballero, A Maris, M. Martin, P. G. Martínez‑González, E. Matarrese, Sabino Mauri, N. McEwen, J. D. Meinhold, P. R. Melchiorri, A Mennella, A Migliaccio, M. Miville-Deschênes, M.-A. Molinari, D Moneti, A Montier, L Morgante, G Natoli, P Oppizzi, F Pagano, L. Paoletti, D. Partridge, B Peel, M. Pettorino, V. Piacentini, F Polenta, G. Puget, J.-L. Rachen, J. P. Reinecke, M. Remazeilles, M. Renzi, A. Rocha, G. Roudier, G. Rubiño-Martín, J. A. Ruiz-Granados, B. Salvati, L Sandri, M Savelainen, M. Scott, Douglas Seljebotn, Dag Sverre Sirignano, C. Spencer, L. D. Suur-Uski, A.-S. Tauber, J. A. Tavagnacco, D. Tenti, M. Thommesen, Harald Toffolatti, L. Tomasi, M. Trombetti, T. Väliviita, Jussi-Pekka Van Tent, B. Vielva, P. Villa, F. Vittorio, N. Wandelt, B. D. Wehus, Ingunn Kathrine Zacchei, Andrea Zonca, A. . Planck 2018 results: IV. Diffuse component separation. Astronomy and Astrophysics (A & A). 2020, 641
dc.identifier.urihttp://hdl.handle.net/10852/82282
dc.description.abstractWe present full-sky maps of the cosmic microwave background (CMB) and polarized synchrotron and thermal dust emission, derived from the third set of Planck frequency maps. These products have significantly lower contamination from instrumental systematic effects than previous versions. The methodologies used to derive these maps follow closely those described in earlier papers, adopting four methods ( Commander , NILC , SEVEM , and SMICA ) to extract the CMB component, as well as three methods ( Commander , GNILC , and SMICA ) to extract astrophysical components. Our revised CMB temperature maps agree with corresponding products in the Planck 2015 delivery, whereas the polarization maps exhibit significantly lower large-scale power, reflecting the improved data processing described in companion papers; however, the noise properties of the resulting data products are complicated, and the best available end-to-end simulations exhibit relative biases with respect to the data at the few percent level. Using these maps, we are for the first time able to fit the spectral index of thermal dust independently over 3° regions. We derive a conservative estimate of the mean spectral index of polarized thermal dust emission of β d  = 1.55  ±  0.05, where the uncertainty marginalizes both over all known systematic uncertainties and different estimation techniques. For polarized synchrotron emission, we find a mean spectral index of β s  = −3.1  ±  0.1, consistent with previously reported measurements. We note that the current data processing does not allow for construction of unbiased single-bolometer maps, and this limits our ability to extract CO emission and correlated components. The foreground results for intensity derived in this paper therefore do not supersede corresponding Planck 2015 products. For polarization the new results supersede the corresponding 2015 products in all respects.
dc.languageEN
dc.titlePlanck 2018 results: IV. Diffuse component separation
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.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.authorBucher, Martin
dc.creator.authorBurigana, C.
dc.creator.authorCalabrese, E.
dc.creator.authorCardoso, J.-F.
dc.creator.authorCarron, J.
dc.creator.authorCasaponsa, B.
dc.creator.authorChallinor, A.
dc.creator.authorColombo, L. P. L.
dc.creator.authorCombet, C.
dc.creator.authorCrill, B. P.
dc.creator.authorCuttaia, F.
dc.creator.authorde Bernardis, P.
dc.creator.authorde Rosa, A.
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.authorDonzelli, Simona
dc.creator.authorDoré, O.
dc.creator.authorDucout, A.
dc.creator.authorDupac, X.
dc.creator.authorEfstathiou, G.
dc.creator.authorElsner, F.
dc.creator.authorEnßlin, T. A.
dc.creator.authorEriksen, Hans Kristian Kamfjord
dc.creator.authorFalgarone, E.
dc.creator.authorFernández-Cobos, R
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.authorGerbino, M.
dc.creator.authorGhosh, T.
dc.creator.authorGonzález-Nuevo, J.
dc.creator.authorGórski, Krzysztof M.
dc.creator.authorGratton, S.
dc.creator.authorGruppuso, A.
dc.creator.authorGudmundsson, Jon E.
dc.creator.authorHandley, W.
dc.creator.authorHansen, Frode Kristian
dc.creator.authorHelou, G.
dc.creator.authorHerranz, D.
dc.creator.authorHildebrandt, S. R.
dc.creator.authorHuang, Z.
dc.creator.authorJaffe, A. H.
dc.creator.authorKarakci, Ata
dc.creator.authorKeihänen, Elina
dc.creator.authorKeskitalo, R.
dc.creator.authorKiiveri, K
dc.creator.authorKim, J.
dc.creator.authorKisner, T. S.
dc.creator.authorKrachmalnicoff, N.
dc.creator.authorKunz, Martin
dc.creator.authorKurki-Suonio, Hannu
dc.creator.authorLagache, G
dc.creator.authorLamarre, J.-M.
dc.creator.authorLasenby, A
dc.creator.authorLattanzi, M
dc.creator.authorLawrence, C. R.
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.authorMarcos-Caballero, A
dc.creator.authorMaris, M.
dc.creator.authorMartin, P. G.
dc.creator.authorMartínez‑González, E.
dc.creator.authorMatarrese, Sabino
dc.creator.authorMauri, N.
dc.creator.authorMcEwen, J. D.
dc.creator.authorMeinhold, P. R.
dc.creator.authorMelchiorri, A
dc.creator.authorMennella, 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.authorOppizzi, F
dc.creator.authorPagano, L.
dc.creator.authorPaoletti, D.
dc.creator.authorPartridge, B
dc.creator.authorPeel, M.
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.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.authorSeljebotn, Dag Sverre
dc.creator.authorSirignano, C.
dc.creator.authorSpencer, L. D.
dc.creator.authorSuur-Uski, A.-S.
dc.creator.authorTauber, J. A.
dc.creator.authorTavagnacco, D.
dc.creator.authorTenti, M.
dc.creator.authorThommesen, Harald
dc.creator.authorToffolatti, L.
dc.creator.authorTomasi, M.
dc.creator.authorTrombetti, T.
dc.creator.authorVäliviita, Jussi-Pekka
dc.creator.authorVan Tent, B.
dc.creator.authorVielva, P.
dc.creator.authorVilla, F.
dc.creator.authorVittorio, N.
dc.creator.authorWandelt, B. D.
dc.creator.authorWehus, Ingunn Kathrine
dc.creator.authorZacchei, Andrea
dc.creator.authorZonca, A.
cristin.unitcode185,15,3,0
cristin.unitnameInstitutt for teoretisk astrofysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1867605
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.pagecount74
dc.identifier.doihttps://doi.org/10.1051/0004-6361/201833881
dc.identifier.urnURN:NBN:no-85179
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn0004-6361
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/82282/2/aa33881-18.pdf
dc.type.versionPublishedVersion
cristin.articleidA4


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