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  Planck 2018 results - VII. Isotropy and statistics of the CMB

Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., et al. (2020). Planck 2018 results - VII. Isotropy and statistics of the CMB. Astronomy and Astrophysics, 641: A7. doi:10.1051/0004-6361/201935201.

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Akrami, Y., Autor
Ashdown, M., Autor
Aumont, J., Autor
Baccigalupi, C., Autor
Ballardini, M., Autor
Banday, A. J., Autor
Barreiro, R. B., Autor
Bartolo, N., Autor
Basak, S., Autor
Benabed, K., Autor
Bersanelli, M., Autor
Bielewicz, P., Autor
Bock, J. J., Autor
Bond, J. R., Autor
Borrill, J., Autor
Bouchet, F. R., Autor
Boulanger, F., Autor
Bucher, M., Autor
Burigana, C., Autor
Butler, R. C., Autor
Calabrese, E., AutorCardoso, J.-F., AutorCasaponsa, B., AutorChiang, H. C., AutorColombo, L. P. L., AutorCombet, C., AutorContreras, D., AutorCrill, B. P., Autorde Bernardis, P., Autorde Zotti, G., AutorDelabrouille, J., AutorDelouis, J.-M., AutorValentino, E. Di, AutorDiego, J. M., AutorDoré, O., AutorDouspis, M., AutorDucout, A., AutorDupac, X., AutorEfstathiou, G., AutorElsner, F.1, Autor           Enßlin, T. A.2, Autor           Eriksen, H. K., AutorFantaye, Y., AutorFernandez-Cobos, R., AutorFinelli, F., AutorFrailis, M., AutorFraisse, A. A., AutorFranceschi, E., AutorFrolov, A., AutorGaleotta, S., AutorGalli, S., AutorGanga, K., AutorGénova-Santos, R. T., AutorGerbino, M., AutorGhosh, T., AutorGonzález-Nuevo, J., AutorGórski, K. M., AutorGruppuso, A., AutorGudmundsson, J. E., AutorHamann, J., AutorHandley, W., AutorHansen, F. K., AutorHerranz, D., AutorHivon, E., AutorHuang, Z., AutorJaffe, A. H. , AutorJones, W. C., AutorKeihänen, E., AutorKeskitalo, R., AutorKiiveri, K., AutorKim, J.3, Autor           Krachmalnico, N., AutorKunz, M., AutorKurki-Suonio, H., AutorLagache, G., AutorLamarre, J.-M., AutorLasenby, A., AutorLattanzi, M., AutorLawrence, C. R., AutorLe Jeune, M., AutorLevrier, F., AutorLiguori, M., AutorLilje, P. B., AutorLindholm, V., AutorLópez-Caniego, M., AutorMa, Y.-Z., AutorMacías-Pérez, J. F., AutorMaggio, G., AutorMaino, D., AutorMandolesi, N., AutorMangilli, A., AutorMarcos-Caballero, A., AutorMaris, M., AutorMartin, P. G., AutorMartínez-González, E., AutorMatarrese, S., AutorMauri, N., AutorMcEwen, J. D., AutorMeinhold, P. R., AutorMennella, A., AutorMigliaccio, M., AutorMiville-Deschênes, M.-A., AutorMolinari, D., AutorMoneti, A., AutorMontier, L., AutorMorgante, G., AutorMoss, A., AutorNatoli, P., AutorPagano, L., AutorPaoletti, D., AutorPartridge, B., AutorPerrotta, F., AutorPettorino, V., AutorPiacentini, F., AutorPolenta, G., AutorPuget, J.-L., AutorRachen, J. P., AutorReinecke, M.2, Autor           Remazeilles, M., AutorRenzi, A., AutorRocha, G., AutorRosset, C., AutorRoudier, G., AutorRubiño-Martín, J. A., AutorRuiz-Granados, B., AutorSalvati, L., AutorSavelainen, M., AutorScott, D., AutorShellard, E. P. S., AutorSirignano, C., AutorSunyaev, R.3, Autor           Suur-Uski, A.-S., AutorTauber, J. A., AutorTavagnacco, D., AutorTenti, M., AutorToffolatti, L., AutorTomasi, M., AutorTrombetti, T., AutorValenziano, L., AutorValiviita, J., AutorTent, B. Van, AutorVielva, P., AutorVilla, F., AutorVittorio, N., AutorWandelt, B. D., AutorWehus, I. K., AutorZacchei, A., AutorZibin, J. P., AutorZonca, and A., Autor mehr..
Affiliations:
1Cosmology, MPI for Astrophysics, Max Planck Society, ou_159876              
2Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              
3High Energy Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159881              

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 Zusammenfassung: 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 ΛCDM 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 ≲ 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 ΛCDM 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.

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Sprache(n): eng - English
 Datum: 2020-09-11
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1051/0004-6361/201935201
Anderer: LOCALID: 3276763
 Art des Abschluß: -

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Titel: Astronomy and Astrophysics
  Andere : Astron. Astrophys.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: France : EDP Sciences S A
Seiten: - Band / Heft: 641 Artikelnummer: A7 Start- / Endseite: - Identifikator: ISSN: 1432-0746
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1