Planck 2018 results: IX. Constraints on primordial non-Gaussianity

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorAkrami, Y.en_US
dc.contributor.authorArroja, F.en_US
dc.contributor.authorAshdown, M.en_US
dc.contributor.authorAumont, J.en_US
dc.contributor.authorBaccigalupi, C.en_US
dc.contributor.authorBallardini, M.en_US
dc.contributor.authorBanday, A. J.en_US
dc.contributor.authorBarreiro, R. B.en_US
dc.contributor.authorBartolo, N.en_US
dc.contributor.authorBasak, S.en_US
dc.contributor.authorBenabed, K.en_US
dc.contributor.authorBernard, J. P.en_US
dc.contributor.authorBersanelli, M.en_US
dc.contributor.authorBielewicz, P.en_US
dc.contributor.authorBond, J. R.en_US
dc.contributor.authorBorrill, J.en_US
dc.contributor.authorBouchet, F. R.en_US
dc.contributor.authorBucher, M.en_US
dc.contributor.authorBurigana, C.en_US
dc.contributor.authorButler, R. C.en_US
dc.contributor.authorCalabrese, E.en_US
dc.contributor.authorCardoso, J. F.en_US
dc.contributor.authorCasaponsa, B.en_US
dc.contributor.authorChallinor, A.en_US
dc.contributor.authorChiang, H. C.en_US
dc.contributor.authorColombo, L. P.L.en_US
dc.contributor.authorCombet, C.en_US
dc.contributor.authorCrill, B. P.en_US
dc.contributor.authorCuttaia, F.en_US
dc.contributor.authorDe Bernardis, P.en_US
dc.contributor.authorDe Rosa, A.en_US
dc.contributor.authorDe Zotti, G.en_US
dc.contributor.authorDelabrouille, J.en_US
dc.contributor.authorDelouis, J. M.en_US
dc.contributor.authorDi Valentino, E.en_US
dc.contributor.authorDiego, J. M.en_US
dc.contributor.authorDoré, O.en_US
dc.contributor.authorDouspis, M.en_US
dc.contributor.authorDucout, A.en_US
dc.contributor.authorDupac, X.en_US
dc.contributor.authorDusini, S.en_US
dc.contributor.authorEfstathiou, G.en_US
dc.contributor.authorElsner, F.en_US
dc.contributor.authorEnßlin, T. A.en_US
dc.contributor.authorEriksen, H. K.en_US
dc.contributor.authorFantaye, Y.en_US
dc.contributor.authorFergusson, J.en_US
dc.contributor.authorFernandez-Cobos, R.en_US
dc.contributor.authorFinelli, F.en_US
dc.contributor.authorFrailis, M.en_US
dc.contributor.authorFraisse, A. A.en_US
dc.contributor.authorFranceschi, E.en_US
dc.contributor.authorFrolov, A.en_US
dc.contributor.authorGaleotta, S.en_US
dc.contributor.authorGalli, S.en_US
dc.contributor.authorGanga, K.en_US
dc.contributor.authorGénova-Santos, R. T.en_US
dc.contributor.authorGerbino, M.en_US
dc.contributor.authorGonzález-Nuevo, J.en_US
dc.contributor.authorGórski, K. M.en_US
dc.contributor.authorGratton, S.en_US
dc.contributor.authorGruppuso, A.en_US
dc.contributor.authorGudmundsson, J. E.en_US
dc.contributor.authorHamann, J.en_US
dc.contributor.authorHandley, W.en_US
dc.contributor.authorHansen, F. K.en_US
dc.contributor.authorHerranz, D.en_US
dc.contributor.authorHivon, E.en_US
dc.contributor.authorHuang, Z.en_US
dc.contributor.authorJaffe, A. H.en_US
dc.contributor.authorJones, W. C.en_US
dc.contributor.authorJung, G.en_US
dc.contributor.authorKeihänen, E.en_US
dc.contributor.authorKeskitalo, R.en_US
dc.contributor.authorKiiveri, K.en_US
dc.contributor.authorKim, Jaiseungen_US
dc.contributor.authorKrachmalnicoff, N.en_US
dc.contributor.authorKunz, M.en_US
dc.contributor.authorKurki-Suonio, H.en_US
dc.contributor.authorLamarre, J. M.en_US
dc.contributor.authorLasenby, A.en_US
dc.contributor.authorLattanzi, M.en_US
dc.contributor.authorLawrence, C. R.en_US
dc.contributor.authorLe Jeune, M.en_US
dc.contributor.authorLevrier, F.en_US
dc.contributor.authorLewis, A.en_US
dc.contributor.authorLiguori, M.en_US
dc.contributor.authorLilje, P. B.en_US
dc.contributor.authorLindholm, V.en_US
dc.contributor.authorLópez-Caniego, M.en_US
dc.contributor.authorMa, Y. Z.en_US
dc.contributor.authorMaciás-Pérez, J. F.en_US
dc.contributor.authorMaggio, G.en_US
dc.contributor.authorMaino, D.en_US
dc.contributor.authorMandolesi, N.en_US
dc.contributor.authorMarcos-Caballero, A.en_US
dc.contributor.authorMaris, M.en_US
dc.contributor.authorMartin, P. G.en_US
dc.contributor.authorMartínez-González, E.en_US
dc.contributor.authorMatarrese, S.en_US
dc.contributor.authorMauri, N.en_US
dc.contributor.authorMcEwen, J. D.en_US
dc.contributor.authorMeerburg, P. D.en_US
dc.contributor.authorMeinhold, P. R.en_US
dc.contributor.authorMelchiorri, A.en_US
dc.contributor.authorMennella, A.en_US
dc.contributor.authorMigliaccio, M.en_US
dc.contributor.authorMiville-Deschênes, M. A.en_US
dc.contributor.authorMolinari, D.en_US
dc.contributor.authorMoneti, A.en_US
dc.contributor.authorMontier, L.en_US
dc.contributor.authorMorgante, G.en_US
dc.contributor.authorMoss, A.en_US
dc.contributor.authorMünchmeyer, M.en_US
dc.contributor.authorNatoli, P.en_US
dc.contributor.authorOppizzi, F.en_US
dc.contributor.authorPagano, L.en_US
dc.contributor.authorPaoletti, D.en_US
dc.contributor.authorPartridge, B.en_US
dc.contributor.authorPatanchon, G.en_US
dc.contributor.authorPerrotta, F.en_US
dc.contributor.authorPettorino, V.en_US
dc.contributor.authorPiacentini, F.en_US
dc.contributor.authorPolenta, G.en_US
dc.contributor.authorPuget, J. L.en_US
dc.contributor.authorRachen, J. P.en_US
dc.contributor.authorRacine, B.en_US
dc.contributor.authorReinecke, M.en_US
dc.contributor.authorRemazeilles, M.en_US
dc.contributor.authorRenzi, A.en_US
dc.contributor.authorRocha, G.en_US
dc.contributor.authorRubiño-Martín, J. A.en_US
dc.contributor.authorRuiz-Granados, B.en_US
dc.contributor.authorSalvati, L.en_US
dc.contributor.authorSavelainen, M.en_US
dc.contributor.authorScott, D.en_US
dc.contributor.authorShellard, E. P.S.en_US
dc.contributor.authorShiraishi, M.en_US
dc.contributor.authorSirignano, C.en_US
dc.contributor.authorSirri, G.en_US
dc.contributor.authorSmith, K.en_US
dc.contributor.authorSpencer, L. D.en_US
dc.contributor.authorStanco, L.en_US
dc.contributor.authorSunyaev, R.en_US
dc.contributor.authorSuur-Uski, A. S.en_US
dc.contributor.authorTauber, J. A.en_US
dc.contributor.authorTavagnacco, D.en_US
dc.contributor.authorTenti, M.en_US
dc.contributor.authorToffolatti, L.en_US
dc.contributor.authorTomasi, M.en_US
dc.contributor.authorTrombetti, T.en_US
dc.contributor.authorValiviita, J.en_US
dc.contributor.authorVan Tent, B.en_US
dc.contributor.authorVielva, P.en_US
dc.contributor.authorVilla, F.en_US
dc.contributor.authorVittorio, N.en_US
dc.contributor.authorWandelt, B. D.en_US
dc.contributor.authorWehus, I. K.en_US
dc.contributor.authorZacchei, A.en_US
dc.contributor.authorZonca, A.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.organizationÉcole normale supérieureen_US
dc.contributor.organizationUniversity of Lisbonen_US
dc.contributor.organizationUniversity of Cambridgeen_US
dc.contributor.organizationUniversité Paul Sabatier Toulouse IIIen_US
dc.contributor.organizationInternational School for Advanced Studiesen_US
dc.contributor.organizationUniversity of the Western Capeen_US
dc.contributor.organizationIRAPen_US
dc.contributor.organizationUniversidad de Cantabriaen_US
dc.contributor.organizationUniversity of Padovaen_US
dc.contributor.organizationIndian Institute of Science Education and Research Thiruvananthapuramen_US
dc.contributor.organizationInstitut d 'Astrophysique de Parisen_US
dc.contributor.organizationUniversity of Milanen_US
dc.contributor.organizationNational Centre for Nuclear Researchen_US
dc.contributor.organizationUniversity of Torontoen_US
dc.contributor.organizationLawrence Berkeley National Laboratoryen_US
dc.contributor.organizationUniversité Pierre et Marie Curieen_US
dc.contributor.organizationUniversity of Ferraraen_US
dc.contributor.organizationNational Research Council of Italyen_US
dc.contributor.organizationCardiff Universityen_US
dc.contributor.organizationUniversity of KwaZulu-Natalen_US
dc.contributor.organizationInstitut national de physique nucléaire et de physique des particulesen_US
dc.contributor.organizationCalifornia Institute of Technologyen_US
dc.contributor.organizationSapienza University of Romeen_US
dc.contributor.organizationINAF - Osservatorio Astronomico di Padovaen_US
dc.contributor.organizationUniversité de Bretagne Occidentaleen_US
dc.contributor.organizationUniversity of Manchesteren_US
dc.contributor.organizationUniversité Paris-Suden_US
dc.contributor.organizationUniversity of Tokyoen_US
dc.contributor.organizationEuropean Space Astronomy Centreen_US
dc.contributor.organizationNational Institute for Nuclear Physicsen_US
dc.contributor.organizationMax-Planck-Institut für Astrophysiken_US
dc.contributor.organizationUniversity of Osloen_US
dc.contributor.organizationAfrican Institute for Mathematical Sciencesen_US
dc.contributor.organizationOsservatorio Astronomico di Triesteen_US
dc.contributor.organizationPrinceton Universityen_US
dc.contributor.organizationSimon Fraser Universityen_US
dc.contributor.organizationUniversity of La Lagunaen_US
dc.contributor.organizationUnited States Department of Energyen_US
dc.contributor.organizationUniversity of Oviedoen_US
dc.contributor.organizationJet Propulsion Laboratoryen_US
dc.contributor.organizationUniversity of New South Walesen_US
dc.contributor.organizationSun Yat-sen Universityen_US
dc.contributor.organizationImperial College Londonen_US
dc.contributor.organizationUniversity of Helsinkien_US
dc.contributor.organizationUMR 7095en_US
dc.contributor.organizationUniversity of Sussexen_US
dc.contributor.organizationUniversity College Londonen_US
dc.contributor.organizationUniversity of California, Santa Barbaraen_US
dc.contributor.organizationUniversity of Rome Tor Vergataen_US
dc.contributor.organizationUniversité Paris-Saclayen_US
dc.contributor.organizationUniversity of Nottinghamen_US
dc.contributor.organizationHaverford Collegeen_US
dc.contributor.organizationAgenzia Spaziale Italianaen_US
dc.contributor.organizationRadboud University Nijmegenen_US
dc.contributor.organizationUniversity of British Columbiaen_US
dc.contributor.organizationPerimeter Institute for Theoretical Physicsen_US
dc.contributor.organizationEuropean Space Research and Technology Centreen_US
dc.contributor.organizationUniversità degli studi di Triesteen_US
dc.contributor.organizationIstituto di Astrofisica Spaziale e Fisica Cosmica di Bolognaen_US
dc.contributor.organizationUniversity of California, San Diegoen_US
dc.date.accessioned2020-10-23T10:09:02Z
dc.date.available2020-10-23T10:09:02Z
dc.date.issued2020-09-01en_US
dc.description.abstractWe analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtained from separable template-fitting, binned, and optimal modal bispectrum estimators, finding consistent values for the local, equilateral, and orthogonal bispectrum amplitudes. Our combined temperature and polarization analysis produces the following final results: flocalNL= -0.9 ± 5.1; fequilNL= -26 ± 47; and forthoNL= -38 ± 24 (68% CL, statistical). These results include low-multipole (4 ≤ ℓ < 40) polarization data that are not included in our previous analysis. The results also pass an extensive battery of tests (with additional tests regarding foreground residuals compared to 2015), and they are stable with respect to our 2015 measurements (with small fluctuations, at the level of a fraction of a standard deviation, which is consistent with changes in data processing). Polarizationonly bispectra display a significant improvement in robustness; they can now be used independently to set primordial NG constraints with a sensitivity comparable to WMAP temperature-based results and they give excellent agreement. In addition to the analysis of the standard local, equilateral, and orthogonal bispectrum shapes, we consider a large number of additional cases, such as scale-dependent feature and resonance bispectra, isocurvature primordial NG, and parity-breaking models, where we also place tight constraints but do not detect any signal. The nonprimordial lensing bispectrum is, however, detected with an improved significance compared to 2015, excluding the null hypothesis at 3.5σ. Beyond estimates of individual shape amplitudes, we also present model-independent reconstructions and analyses of the Planck CMB bispectrum. Our final constraint on the local primordial trispectrum shape is glocalNL= (-5.8 ± 6.5) × 104(68% CL, statistical), while constraints for other trispectrum shapes are also determined. Exploiting the tight limits on various bispectrum and trispectrum shapes, we constrain the parameter space of different early-Universe scenarios that generate primordial NG, including general single-field models of inflation, multi-field models (e.g. curvaton models), models of inflation with axion fields producing parity-violation bispectra in the tensor sector, and inflationary models involving vector-like fields with directionally-dependent bispectra. Our results provide a high-precision test for structure-formation scenarios, showing complete agreement with the basic picture of the CDM cosmology regarding the statistics of the initial conditions, with cosmic structures arising from adiabatic, passive, Gaussian, and primordial seed perturbations.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationAkrami, Y, Arroja, F, 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, Bond, J R, Borrill, J, Bouchet, F R, Bucher, M, Burigana, C, Butler, R C, Calabrese, E, Cardoso, J F, Casaponsa, B, Challinor, A, Chiang, H C, Colombo, L P L, Combet, C, Crill, B P, Cuttaia, F, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Delouis, J M, Di Valentino, E, Diego, J M, Doré, O, Douspis, M, Ducout, A, Dupac, X, Dusini, S, Efstathiou, G, Elsner, F, Enßlin, T A, Eriksen, H K, Fantaye, Y, Fergusson, J, Fernandez-Cobos, R, Finelli, F, Frailis, M, Fraisse, A A, Franceschi, E, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Génova-Santos, R T, Gerbino, M, González-Nuevo, J, Górski, K M, Gratton, S, Gruppuso, A, Gudmundsson, J E, Hamann, J, Handley, W, Hansen, F K, Herranz, D, Hivon, E, Huang, Z, Jaffe, A H, Jones, W C, Jung, G, Keihänen, E, Keskitalo, R, Kiiveri, K, Kim, J, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lamarre, J M, Lasenby, A, Lattanzi, M, Lawrence, C R, Le Jeune, M, Levrier, F, Lewis, A, Liguori, M, Lilje, P B, Lindholm, V, López-Caniego, M, Ma, Y Z, Maciás-Pérez, J F, Maggio, G, Maino, D, Mandolesi, N, Marcos-Caballero, A, Maris, M, Martin, P G, Martínez-González, E, Matarrese, S, Mauri, N, McEwen, J D, Meerburg, P D, Meinhold, P R, Melchiorri, A, Mennella, A, Migliaccio, M, Miville-Deschênes, M A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Moss, A, Münchmeyer, M, Natoli, P, Oppizzi, F, Pagano, L, Paoletti, D, Partridge, B, Patanchon, G, Perrotta, F, Pettorino, V, Piacentini, F, Polenta, G, Puget, J L, Rachen, J P, Racine, B, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, Rubiño-Martín, J A, Ruiz-Granados, B, Salvati, L, Savelainen, M, Scott, D, Shellard, E P S, Shiraishi, M, Sirignano, C, Sirri, G, Smith, K, Spencer, L D, Stanco, L, Sunyaev, R, Suur-Uski, A S, Tauber, J A, Tavagnacco, D, Tenti, M, Toffolatti, L, Tomasi, M, Trombetti, T, Valiviita, J, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wandelt, B D, Wehus, I K, Zacchei, A & Zonca, A 2020, ' Planck 2018 results : IX. Constraints on primordial non-Gaussianity ', Astronomy and Astrophysics, vol. 641, 9 . https://doi.org/10.1051/0004-6361/201935891en
dc.identifier.doi10.1051/0004-6361/201935891en_US
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.otherPURE UUID: 7a45c502-1e01-4b0b-ad53-8ff96f335a31en_US
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dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/47063
dc.identifier.urnURN:NBN:fi:aalto-202010235950
dc.language.isoenen
dc.publisherEDP SCIENCES
dc.relation.ispartofseriesAstronomy and Astrophysicsen
dc.relation.ispartofseriesVolume 641en
dc.rightsopenAccessen
dc.subject.keywordCosmic background radiationen_US
dc.subject.keywordCosmology: observationsen_US
dc.subject.keywordCosmology: theoryen_US
dc.subject.keywordEarly Universeen_US
dc.subject.keywordInflationen_US
dc.subject.keywordMethods: data analysisen_US
dc.titlePlanck 2018 results: IX. Constraints on primordial non-Gaussianityen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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