Planck 2018 results VII. Isotropy and statistics of the CMB

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Akrami, Y. (author)

Planck 2018 results VII. Isotropy and statistics of the CMB

Article/chapterEnglish2020

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2020-09-11
EDP Sciences,2020
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:su-186404
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-186404URI
https://doi.org/10.1051/0004-6361/201935201DOI

Supplementary language notes

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

Analysis of the Planck 2018 data set indicates that the statistical properties of the cosmic microwave background (CMB) temperature anisotropies are in excellent agreement with previous studies using the 2013 and 2015 data releases. In particular, they are consistent with the Gaussian predictions of the Lambda CDM cosmological model, yet also confirm the presence of several so-called anomalies on large angular scales. The novelty of the current study, however, lies in being a first attempt at a comprehensive analysis of the statistics of the polarization signal over all angular scales, using either maps of the Stokes parameters, Q and U, or the E-mode signal derived from these using a new methodology (which we describe in an appendix). Although remarkable progress has been made in reducing the systematic effects that contaminated the 2015 polarization maps on large angular scales, it is still the case that residual systematics (and our ability to simulate them) can limit some tests of non-Gaussianity and isotropy. However, a detailed set of null tests applied to the maps indicates that these issues do not dominate the analysis on intermediate and large angular scales (i.e., l less than or similar to 400). In this regime, no unambiguous detections of cosmological non-Gaussianity, or of anomalies corresponding to those seen in temperature, are claimed. Notably, the stacking of CMB polarization signals centred on the positions of temperature hot and cold spots exhibits excellent agreement with the Lambda CDM cosmological model, and also gives a clear indication of how Planck provides state-of-the-art measurements of CMB temperature and polarization on degree scales.

Subject headings and genre

NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
cosmology: observations
cosmic background radiation
polarization
methods: data analysis
methods: statistical

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Ashdown, M. (author)
Aumont, J. (author)
Baccigalupi, C. (author)
Ballardini, M. (author)
Banday, A. J. (author)
Barreiro, R. B. (author)
Bartolo, N. (author)
Basak, S. (author)
Benabed, K. (author)
Bersanelli, M. (author)
Bielewicz, P. (author)
Bock, J. J. (author)
Bond, J. R. (author)
Borrill, J. (author)
Bouchet, F. R. (author)
Boulanger, F. (author)
Bucher, M. (author)
Burigana, C. (author)
Butler, R. C. (author)
Calabrese, E. (author)
Cardoso, J. -F. (author)
Casaponsa, B. (author)
Chiang, H. C. (author)
Colombo, L. P. L. (author)
Combet, C. (author)
Contreras, D. (author)
Crill, B. P. (author)
de Bernardis, P. (author)
de Zotti, G. (author)
Delabrouille, J. (author)
Delouis, J. -M. (author)
Di Valentino, E. (author)
Diego, J. M. (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)
Fantaye, Y. (author)
Fernandez-Cobos, R. (author)
Finelli, F. (author)
Frailis, M. (author)
Fraisse, A. A. (author)
Franceschi, E. (author)
Frolov, A. (author)
Galeotta, S. (author)
Galli, S. (author)
Ganga, K. (author)
Genova-Santos, R. T. (author)
Gerbino, MartinaStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mgerb (author)
Ghosh, T. (author)
Gonzalez-Nuevo, J. (author)
Gorski, K. M. (author)
Gruppuso, A. (author)
Gudmundsson, Jón E.Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Princeton University, USA(Swepub:su)jgudm (author)
Hamann, J. (author)
Handley, W. (author)
Hansen, F. K. (author)
Herranz, D. (author)
Hivon, E. (author)
Huang, Z. (author)
Jaffe, A. H. (author)
Jones, W. C. (author)
Keihanen, E. (author)
Keskitalo, R. (author)
Kiiveri, K. (author)
Kim, J. (author)
Krachmalnico, N. (author)
Kunz, M. (author)
Kurki-Suonio, H. (author)
Lagache, G. (author)
Lamarre, J. -M. (author)
Lasenby, A. (author)
Lattanzi, M. (author)
Lawrence, C. R. (author)
Le Jeune, M. (author)
Levrier, F. (author)
Liguori, M. (author)
Lilje, P. B. (author)
Lindholm, V. (author)
Lopez-Caniego, M. (author)
Ma, Y. -Z. (author)
Macias-Perez, J. F. (author)
Maggio, G. (author)
Maino, D. (author)
Mandolesi, N. (author)
Mangilli, A. (author)
Marcos-Caballero, A. (author)
Maris, M. (author)
Martin, P. G. (author)
Martinez-Gonzalez, E. (author)
Matarrese, S. (author)
Mauri, N. (author)
McEwen, J. D. (author)
Meinhold, P. R. (author)
Mennella, A. (author)
Migliaccio, M. (author)
Miville-Deschenes, M. -A. (author)
Molinari, D. (author)
Moneti, A. (author)
Montier, L. (author)
Morgante, G. (author)
Moss, A. (author)
Natoli, P. (author)
Pagano, L. (author)
Paoletti, D. (author)
Partridge, B. (author)
Perrotta, F. (author)
Pettorino, V. (author)
Piacentini, F. (author)
Polenta, G. (author)
Puget, J. -L. (author)
Rachen, J. P. (author)
Reinecke, M. (author)
Remazeilles, M. (author)
Renzi, A. (author)
Rocha, G. (author)
Rosset, C. (author)
Roudier, G. (author)
Rubino-Martin, J. A. (author)
Ruiz-Granados, B. (author)
Salvati, L. (author)
Savelainen, M. (author)
Scott, D. (author)
Shellard, E. P. S. (author)
Sirignano, C. (author)
Sunyaev, R. (author)
Suur-Uski, A. -S. (author)
Tauber, J. A. (author)
Tavagnacco, D. (author)
Tenti, M. (author)
Olatti, L. To Ff (author)
Tomasi, M. (author)
Trombetti, T. (author)
Valenziano, L. (author)
Valiviita, J. (author)
Van Tent, B. (author)
Vielva, P. (author)
Villa, F. (author)
Vittorio, N. (author)
Wandelt, B. D. (author)
Wehus, I. K. (author)
Zacchei, A. (author)
Zibin, J. P. (author)
Zonca, A. (author)
Stockholms universitetFysikum (creator_code:org_t)

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By the author/editor: Akrami, Y.; Ashdown, M.; Aumont, J.; Baccigalupi, C.; Ballardini, M.; Banday, A. J.; show more...; Barreiro, R. B.; Bartolo, N.; Basak, S.; Benabed, K.; Bersanelli, M.; Bielewicz, P.; Bock, J. J.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Boulanger, F.; Bucher, M.; Burigana, C.; Butler, R. C.; Calabrese, E.; Cardoso, J. -F.; Casaponsa, B.; Chiang, H. C.; Colombo, L. P. L ...; Combet, C.; Contreras, D.; Crill, B. P.; de Bernardis, P.; de Zotti, G.; Delabrouille, J.; Delouis, J. -M.; Di Valentino, E.; Diego, J. M.; Dore, O.; Douspis, M.; Ducout, A.; Dupac, X.; Efstathiou, G.; Elsner, F.; Ensslin, T. A.; Eriksen, H. K.; Fantaye, Y.; Fernandez-Cobos, ...; Finelli, F.; Frailis, M.; Fraisse, A. A.; Franceschi, E.; Frolov, A.; Galeotta, S.; Galli, S.; Ganga, K.; Genova-Santos, R ...; Gerbino, Martina; Ghosh, T.; Gonzalez-Nuevo, ...; Gorski, K. M.; Gruppuso, A.; Gudmundsson, Jón ...; Hamann, J.; Handley, W.; Hansen, F. K.; Herranz, D.; Hivon, E.; Huang, Z.; Jaffe, A. H.; Jones, W. C.; Keihanen, E.; Keskitalo, R.; Kiiveri, K.; Kim, J.; Krachmalnico, N.; Kunz, M.; Kurki-Suonio, H.; Lagache, G.; Lamarre, J. -M.; Lasenby, A.; Lattanzi, M.; Lawrence, C. R.; Le Jeune, M.; Levrier, F.; Liguori, M.; Lilje, P. B.; Lindholm, V.; Lopez-Caniego, M ...; Ma, Y. -Z.; Macias-Perez, J. ...; Maggio, G.; Maino, D.; Mandolesi, N.; Mangilli, A.; Marcos-Caballero ...; Maris, M.; Martin, P. G.; Martinez-Gonzale ...; Matarrese, S.; Mauri, N.; McEwen, J. D.; Meinhold, P. R.; Mennella, A.; Migliaccio, M.; Miville-Deschene ...; Molinari, D.; Moneti, A.; Montier, L.; Morgante, G.; Moss, A.; Natoli, P.; Pagano, L.; Paoletti, D.; Partridge, B.; Perrotta, F.; Pettorino, V.; Piacentini, F.; Polenta, G.; Puget, J. -L.; Rachen, J. P.; Reinecke, M.; Remazeilles, M.; Renzi, A.; Rocha, G.; Rosset, C.; Roudier, G.; Rubino-Martin, J ...; Ruiz-Granados, B ...; Salvati, L.; Savelainen, M.; Scott, D.; Shellard, E. P. ...; Sirignano, C.; Sunyaev, R.; Suur-Uski, A. -S ...; Tauber, J. A.; Tavagnacco, D.; Tenti, M.; Olatti, L. To Ff; Tomasi, M.; Trombetti, T.; Valenziano, L.; Valiviita, J.; Van Tent, B.; Vielva, P.; Villa, F.; Vittorio, N.; Wandelt, B. D.; Wehus, I. K.; Zacchei, A.; Zibin, J. P.; Zonca, A.; show less...

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