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Planck 2018 results. VI. Cosmological parameters

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cam.issuedOnline2020-09-11
cam.orpheus.successMon Sep 21 10:13:57 BST 2020 - The item has an open VoR version.
dc.contributor.authorCollaboration, Planck
dc.contributor.authorAghanim, N
dc.contributor.authorAkrami, Y
dc.contributor.authorAshdown, M
dc.contributor.authorAumont, J
dc.contributor.authorBaccigalupi, C
dc.contributor.authorBallardini, M
dc.contributor.authorBanday, AJ
dc.contributor.authorBarreiro, RB
dc.contributor.authorBartolo, N
dc.contributor.authorBasak, S
dc.contributor.authorBattye, R
dc.contributor.authorBenabed, K
dc.contributor.authorBernard, J-P
dc.contributor.authorBersanelli, M
dc.contributor.authorBielewicz, P
dc.contributor.authorBock, JJ
dc.contributor.authorBond, JR
dc.contributor.authorBorrill, J
dc.contributor.authorBouchet, FR
dc.contributor.authorBoulanger, F
dc.contributor.authorBucher, M
dc.contributor.authorBurigana, C
dc.contributor.authorButler, RC
dc.contributor.authorCalabrese, E
dc.contributor.authorCardoso, J-F
dc.contributor.authorCarron, J
dc.contributor.authorChallinor, A
dc.contributor.authorChiang, HC
dc.contributor.authorChluba, J
dc.contributor.authorColombo, LPL
dc.contributor.authorCombet, C
dc.contributor.authorContreras, D
dc.contributor.authorCrill, BP
dc.contributor.authorCuttaia, F
dc.contributor.authorBernardis, P de
dc.contributor.authorZotti, G de
dc.contributor.authorDelabrouille, J
dc.contributor.authorDelouis, J-M
dc.contributor.authorValentino, E Di
dc.contributor.authorDiego, JM
dc.contributor.authorDoré, O
dc.contributor.authorDouspis, M
dc.contributor.authorDucout, A
dc.contributor.authorDupac, X
dc.contributor.authorDusini, S
dc.contributor.authorEfstathiou, G
dc.contributor.authorElsner, F
dc.contributor.authorEnßlin, TA
dc.contributor.authorEriksen, HK
dc.contributor.authorFantaye, Y
dc.contributor.authorFarhang, M
dc.contributor.authorFergusson, J
dc.contributor.authorFernandez-Cobos, R
dc.contributor.authorFinelli, F
dc.contributor.authorForastieri, F
dc.contributor.authorFrailis, M
dc.contributor.authorFraisse, AA
dc.contributor.authorFranceschi, E
dc.contributor.authorFrolov, A
dc.contributor.authorGaleotta, S
dc.contributor.authorGalli, S
dc.contributor.authorGanga, K
dc.contributor.authorGénova-Santos, RT
dc.contributor.authorGerbino, M
dc.contributor.authorGhosh, T
dc.contributor.authorGonzález-Nuevo, J
dc.contributor.authorGórski, KM
dc.contributor.authorGratton, S
dc.contributor.authorGruppuso, A
dc.contributor.authorGudmundsson, JE
dc.contributor.authorHamann, J
dc.contributor.authorHandley, W
dc.contributor.authorHansen, FK
dc.contributor.authorHerranz, D
dc.contributor.authorHildebrandt, SR
dc.contributor.authorHivon, E
dc.contributor.authorHuang, Z
dc.contributor.authorJaffe, AH
dc.contributor.authorJones, WC
dc.contributor.authorKarakci, A
dc.contributor.authorKeihänen, E
dc.contributor.authorKeskitalo, R
dc.contributor.authorKiiveri, K
dc.contributor.authorKim, J
dc.contributor.authorKisner, TS
dc.contributor.authorKnox, L
dc.contributor.authorKrachmalnicoff, N
dc.contributor.authorKunz, M
dc.contributor.authorKurki-Suonio, H
dc.contributor.authorLagache, G
dc.contributor.authorLamarre, J-M
dc.contributor.authorLasenby, A
dc.contributor.authorLattanzi, M
dc.contributor.authorLawrence, CR
dc.contributor.authorJeune, M Le
dc.contributor.authorLemos, P
dc.contributor.authorLesgourgues, J
dc.contributor.authorLevrier, F
dc.contributor.authorLewis, A
dc.contributor.authorLiguori, M
dc.contributor.authorLilje, PB
dc.contributor.authorLilley, M
dc.contributor.authorLindholm, V
dc.contributor.authorLópez-Caniego, M
dc.contributor.authorLubin, PM
dc.contributor.authorMa, Y-Z
dc.contributor.authorMacías-Pérez, JF
dc.contributor.authorMaggio, G
dc.contributor.authorMaino, D
dc.contributor.authorMandolesi, N
dc.contributor.authorMangilli, A
dc.contributor.authorMarcos-Caballero, A
dc.contributor.authorMaris, M
dc.contributor.authorMartin, PG
dc.contributor.authorMartinelli, M
dc.contributor.authorMartínez-González, E
dc.contributor.authorMatarrese, S
dc.contributor.authorMauri, N
dc.contributor.authorMcEwen, JD
dc.contributor.authorMeinhold, PR
dc.contributor.authorMelchiorri, A
dc.contributor.authorMennella, A
dc.contributor.authorMigliaccio, M
dc.contributor.authorMillea, M
dc.contributor.authorMitra, S
dc.contributor.authorMiville-Deschênes, M-A
dc.contributor.authorMolinari, D
dc.contributor.authorMontier, L
dc.contributor.authorMorgante, G
dc.contributor.authorMoss, A
dc.contributor.authorNatoli, P
dc.contributor.authorNørgaard-Nielsen, HU
dc.contributor.authorPagano, L
dc.contributor.authorPaoletti, D
dc.contributor.authorPartridge, B
dc.contributor.authorPatanchon, G
dc.contributor.authorPeiris, HV
dc.contributor.authorPerrotta, F
dc.contributor.authorPettorino, V
dc.contributor.authorPiacentini, F
dc.contributor.authorPolastri, L
dc.contributor.authorPolenta, G
dc.contributor.authorPuget, J-L
dc.contributor.authorRachen, JP
dc.contributor.authorReinecke, M
dc.contributor.authorRemazeilles, M
dc.contributor.authorRenzi, A
dc.contributor.authorRocha, G
dc.contributor.authorRosset, C
dc.contributor.authorRoudier, G
dc.contributor.authorRubiño-Martín, JA
dc.contributor.authorRuiz-Granados, B
dc.contributor.authorSalvati, L
dc.contributor.authorSandri, M
dc.contributor.authorSavelainen, M
dc.contributor.authorScott, D
dc.contributor.authorShellard, EPS
dc.contributor.authorSirignano, C
dc.contributor.authorSirri, G
dc.contributor.authorSpencer, LD
dc.contributor.authorSunyaev, R
dc.contributor.authorSuur-Uski, A-S
dc.contributor.authorTauber, JA
dc.contributor.authorTavagnacco, D
dc.contributor.authorTenti, M
dc.contributor.authorToffolatti, L
dc.contributor.authorTomasi, M
dc.contributor.authorTrombetti, T
dc.contributor.authorValenziano, L
dc.contributor.authorValiviita, J
dc.contributor.authorTent, B Van
dc.contributor.authorVibert, L
dc.contributor.authorVielva, P
dc.contributor.authorVilla, F
dc.contributor.authorVittorio, N
dc.contributor.authorWandelt, BD
dc.contributor.authorWehus, IK
dc.contributor.authorWhite, M
dc.contributor.authorWhite, SDM
dc.contributor.authorZacchei, A
dc.contributor.authorZonca, A
dc.contributor.orcidChallinor, Anthony [0000-0003-3479-7823]
dc.contributor.orcidFergusson, James [0000-0003-4820-171X]
dc.contributor.orcidHandley, William [0000-0002-5866-0445]
dc.contributor.orcidLasenby, Anthony [0000-0002-8208-6332]
dc.date.accessioned2020-09-16T08:05:12Z
dc.date.available2020-09-16T08:05:12Z
dc.date.issued2020
dc.description.abstractWe present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-parameter $\Lambda$CDM cosmology having a power-law spectrum of adiabatic scalar perturbations (denoted "base $\Lambda$CDM" in this paper), from polarization, temperature, and lensing, separately and in combination. A combined analysis gives dark matter density $\Omega_c h^2 = 0.120\pm 0.001$, baryon density $\Omega_b h^2 = 0.0224\pm 0.0001$, scalar spectral index $n_s = 0.965\pm 0.004$, and optical depth $\tau = 0.054\pm 0.007$ (in this abstract we quote $68\,\%$ confidence regions on measured parameters and $95\,\%$ on upper limits). The angular acoustic scale is measured to $0.03\,\%$ precision, with $100\theta_*=1.0411\pm 0.0003$. These results are only weakly dependent on the cosmological model and remain stable, with somewhat increased errors, in many commonly considered extensions. Assuming the base-$\Lambda$CDM cosmology, the inferred late-Universe parameters are: Hubble constant $H_0 = (67.4\pm 0.5)$km/s/Mpc; matter density parameter $\Omega_m = 0.315\pm 0.007$; and matter fluctuation amplitude $\sigma_8 = 0.811\pm 0.006$. We find no compelling evidence for extensions to the base-$\Lambda$CDM model. Combining with BAO we constrain the effective extra relativistic degrees of freedom to be $N_{\rm eff} = 2.99\pm 0.17$, and the neutrino mass is tightly constrained to $\sum m_\nu< 0.12$eV. The CMB spectra continue to prefer higher lensing amplitudes than predicted in base -$\Lambda$CDM at over $2\,\sigma$, which pulls some parameters that affect the lensing amplitude away from the base-$\Lambda$CDM model; however, this is not supported by the lensing reconstruction or (in models that also change the background geometry) BAO data. (Abridged)
dc.identifier.doi10.17863/CAM.33675
dc.identifier.eissn1432-0746
dc.identifier.issn0004-6361
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/310335
dc.language.isoeng
dc.publisherEDP Sciences
dc.publisher.urlhttp://dx.doi.org/10.1051/0004-6361/201833910
dc.subjectcosmic background radiation
dc.subjectcosmological parameters
dc.titlePlanck 2018 results. VI. Cosmological parameters
dc.typeArticle
dcterms.dateAccepted2020-03-20
prism.endingPageA6
prism.publicationNameAstronomy and Astrophysics
prism.startingPageA6
prism.volume641
pubs.funder-project-idScience and Technology Facilities Council (ST/L000636/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/M007065/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/P000673/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/N000927/1)
rioxxterms.licenseref.startdate2020-03-20
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
rioxxterms.versionVoR
rioxxterms.versionofrecord10.1051/0004-6361/201833910

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