<i>Planck</i>2018 results
Y. AkramiInstitute of Theoretical Astrophysics, University of Oslo, Blindern, Oslo, NorwayF. ArrojaInstituto de Astrofísica e Ciências do Espaço, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, PortugalM. AshdownAstrophysics Group, Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UKJ. AumontUniversité de Toulouse, UPS-OMP, IRAP, 31028 Toulouse Cedex 4, FranceC. BaccigalupiSISSA, Astrophysics Sector, Via Bonomea 265, 34136 Trieste, ItalyM. BallardiniDepartment of Physics & Astronomy, University of the Western Cape, Cape Town 7535, South AfricaA. J. BandayCNRS, IRAP, 9 Av. Colonel Roche, BP 44346, 31028 Toulouse Cedex 4, FranceR. B. BarreiroInstituto de Física de Cantabria (CSIC-Universidad de Cantabria), Avda. de los Castros s/n, Santander, SpainN. BartoloDipartimento di Fisica e Astronomia G. Galilei, Universit degli Studi di Padova, Via Marzolo 8, 35131 Padova, ItalyS. BasakSchool of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, Kerala, IndiaK. BenabedInstitut d'Astrophysique de Paris, CNRS (UMR7095), 98bis boulevard Arago, 75014 Paris, FranceJ.-P. BernardCNRS, IRAP, 9 Av. Colonel Roche, BP 44346, 31028 Toulouse Cedex 4, FranceM. BersanelliINAF/IASF Milano, Via E. Bassini 15, Milano, ItalyP. BielewiczSISSA, Astrophysics Sector, Via Bonomea 265, 34136 Trieste, ItalyJ. J. BockCalifornia Institute of Technology, Pasadena, CA, USAJ. R. BondCITA, University of Toronto, 60 St. George St., Toronto, ON M5S 3H8, CanadaJ. BorrillComputational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USAF. R. BouchetInstitut d'Astrophysique de Paris, CNRS (UMR7095), 98bis boulevard Arago, 75014 Paris, FranceF. BoulangerInstitut d'Astrophysique de Paris, CNRS (UMR7095), 98bis boulevard Arago, 75014 Paris, FranceM. BucherAPC, AstroParticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/lrfu, Observatoire de Paris, Sorbonne Paris Cité, 10 rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, FranceC. BuriganaDipartimento di Fisica e Scienze della Terra, Universit di Ferrara, Via Saragat 1, 44122 Ferrara, Italy 31 Dipartimento di Fisica, Universit La Sapienza, P.le A. Moro 2, Roma, Italy 32 Dipartimento di Fisica, Universit degli Studi di Milano, Via Celo-ria, 16, Milano, Italy 33 Dipartimento di Fisica, Universit degli Studi di Trieste, Via A. Valerio 2, Trieste, Italy 34 Dipartimento di Fisica, Universit di Roma Tor Vergata, Via della Ricerca Scientifica, 1, Roma, Italy 35 European Space Agency, ESAC, Planck Science Office, Camino bajo del Castillo,R. C. ButlerINAF – OAS Bologna, Istituto Nazionale di Astrofisica – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Area della Ricerca del CNR, Via Gobetti 101, 40129 Bologna, ItalyE. CalabreseSchool of Physics and Astronomy, Cardiff University, Queens Buildings, The Parade, Cardiff CF24 3AA, UKJ.-F. CardosoInstitut d'Astrophysique de Paris, CNRS (UMR7095), 98bis boulevard Arago, 75014 Paris, FranceJ. CarronDepartment of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, UKA. ChallinorCentre for Theoretical Cosmology, DAMTP, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UKH. C. ChiangAstrophysics & Cosmology Research Unit, School of Mathemat-ics, Statistics & Computer Science, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South AfricaL. P. L. ColomboDipartimento di Fisica, Università degli Studi di Milano, Via Celoria, 16, Milano, ItalyC. CombetLaboratoire de Physique Subatomique et Cosmologie, Université Grenoble-Alpes, CNRS/IN2P3, 53 rue des Martyrs, 38026 Grenoble Cedex, FranceD. ContrerasDepartment of Physics & Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC, CanadaB. P. CrillCalifornia Institute of Technology, Pasadena, CA, USAF. CuttaiaINAF – OAS Bologna, Istituto Nazionale di Astrofisica – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Area della Ricerca del CNR, Via Gobetti 101, 40129 Bologna, ItalyP. de BernardisDipartimento di Fisica, Università La Sapienza, P.le A. Moro 2, Roma, ItalyG. de ZottiINAF – Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, ItalyJ. DelabrouilleAPC, AstroParticule et Cosmologie, Universit Paris Diderot,J.‐M. DelouisUPMC Univ. Paris 06, UMR7095, 98bis boulevard Arago, 75014 Paris, FranceE. Di ValentinoJodrell Bank Centre for Astrophysics, Alan Turing Building, School of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, UKJ. M. DiegoInstituto de Física de Cantabria (CSIC-Universidad de Cantabria), Avda. de los Castros s/n, Santander, SpainS. DonzelliINAF/IASF Milano, Via E. Bassini 15, Milano, ItalyO. DoréJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, USAM. DouspisInstitut d'Astrophysique Spatiale, CNRS, Univ. Paris-Sud, Université Paris-Saclay, Bât. 121, 91405 Orsay Cedex, FranceA. DucoutImperial College London, Astrophysics group, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UKX. DupacEuropean Space Agency, ESAC, Planck Science Office, Camino bajo del Castillo, s/n, Urbanización Villafranca del Castillo, Villanueva de la Cañada, Madrid, SpainS. DusiniIstituto Nazionale di Fisica Nucleare, Sezione di Padova, Via Marzolo 8, 35131 Padova, ItalyG. EfstathiouInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKF. ElsnerMax-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, GermanyT. A. EnßlinMax-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, GermanyH. K. EriksenInstitute of Theoretical Astrophysics, University of Oslo, Blindern, Oslo, NorwayY. FantayeAfrican Institute for Mathematical Sciences, 6-8 Melrose Road, Muizenberg, Cape Town, South AfricaJ. FergussonCentre for Theoretical Cosmology, DAMTP, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, UKR. Fernández-CobosInstituto de Física de Cantabria (CSIC-Universidad de Cantabria), Avda. de los Castros s/n, Santander, SpainF. Finelli⋆INFN, Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, ItalyF. ForastieriDipartimento di Fisica e Scienze della Terra, Universit di Ferrara, Via Saragat 1, 44122 Ferrara, Italy 31 Dipartimento di Fisica, Universit La Sapienza, P.le A. Moro 2, Roma, Italy 32 Dipartimento di Fisica, Universit degli Studi di Milano, Via Celo-ria, 16, Milano, Italy 33 Dipartimento di Fisica, Universit degli Studi di Trieste, Via A. Valerio 2, Trieste, Italy 34 Dipartimento di Fisica, Universit di Roma Tor Vergata, Via della Ricerca Scientifica, 1, Roma, Italy 35 European Space Agency, ESAC, Planck Science Office, Camino bajo del Castillo,M. FrailisINAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, Trieste, ItalyE. FranceschiINAF – OAS Bologna, Istituto Nazionale di Astrofisica – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Area della Ricerca del CNR, Via Gobetti 101, 40129 Bologna, ItalyA. FrolovSimon Fraser University, Department of Physics, 8888 University Drive, Burnaby, BC, CanadaS. GaleottaINAF – Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, Trieste, ItalyS. GalliKavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USAK GangaAPC, AstroParticule et Cosmologie, Universit Paris Diderot,C. GauthierAPC, AstroParticule et Cosmologie, Universit Paris Diderot,R. T. Génova-SantosDepartamento de Astrofísica, Universidad de La Laguna (ULL), 38206 La Laguna, Tenerife, SpainM. GerbinoThe Oskar Klein Centre for Cosmoparticle Physics, Department of Physics, Stockholm University, AlbaNova 106 91, Stockholm, SwedenT. GhoshCahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USAJ. González-NuevoDepartamento de Física, Universidad de Oviedo, C/ Federico García Lorca, 18, Oviedo, SpainK. M. GórskiJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, USAS. GrattonInstitute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKA. GruppusoINAF – OAS Bologna, Istituto Nazionale di Astrofisica – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Area della Ricerca del CNR, Via Gobetti 101, 40129 Bologna, ItalyJ. E. GudmundssonDepartment of Physics, Princeton University, Princeton, NJ, USAJ. HamannSchool of Physics, The University of New South Wales, Sydney, NSW 2052, AustraliaWill HandleyAstrophysics Group, Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UKF. K. HansenInstitute of Theoretical Astrophysics, University of Oslo, Blindern, Oslo, NorwayD. HerranzInstituto de Física de Cantabria (CSIC-Universidad de Cantabria), Avda. de los Castros s/n, Santander, SpainE. HivonInstitut d'Astrophysique de Paris, CNRS (UMR7095), 98bis boulevard Arago, 75014 Paris, FranceDeanna C. HooperInstitut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, GermanyZhiqi HuangSchool of Physics and Astronomy, Sun Yat-sen University, 2 Daxue Rd, Tangjia, Zhuhai, PR ChinaA. H. JaffeImperial College London, Astrophysics group, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UKW. C. JonesDepartment of Physics, Princeton University, Princeton, NJ, USAE. KeihänenDepartment of Physics, Gustaf Hällströmin katu 2a, University of Helsinki, Helsinki, FinlandR. KeskitaloComputational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA, USAK. KiiveriDepartment of Physics, Gustaf Hllstrmin katu 2a, University of Helsinki, Helsinki, FinlandJ. KimMax-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching, GermanyT. S. KisnerLawrence Berkeley National Laboratory, Berkeley, CA, USAN. KrachmalnicoffSISSA, Astrophysics Sector, Via Bonomea 265, 34136 Trieste, ItalyM. KunzAfrican Institute for Mathematical Sciences, 6-8 Melrose Road, Muizenberg, Cape Town, South AfricaH. Kurki‐SuonioDepartment of Physics, Gustaf Hllstrmin katu 2a, University of Helsinki, Helsinki, FinlandG. LagacheAix Marseille Univ., CNRS, CNES, LAM, Marseille, FranceJ.–M. LamarreLERMA, CNRS, Observatoire de Paris, 61 avenue de l'Observatoire, Paris, FranceA. LasenbyAstrophysics Group, Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, UKM. LattanziDipartimento di Fisica e Scienze della Terra, Universit di Ferrara, Via Saragat 1, 44122 Ferrara, Italy 31 Dipartimento di Fisica, Universit La Sapienza, P.le A. Moro 2, Roma, Italy 32 Dipartimento di Fisica, Universit degli Studi di Milano, Via Celo-ria, 16, Milano, Italy 33 Dipartimento di Fisica, Universit degli Studi di Trieste, Via A. Valerio 2, Trieste, Italy 34 Dipartimento di Fisica, Universit di Roma Tor Vergata, Via della Ricerca Scientifica, 1, Roma, Italy 35 European Space Agency, ESAC, Planck Science Office, Camino bajo del Castillo,C. R. LawrenceJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, USAM. Le JeuneAPC, AstroParticule et Cosmologie, Universit Paris Diderot,J. LesgourguesInstitut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, 52056 Aachen, GermanyF. LevrierLERMA, CNRS, Observatoire de Paris, 61 avenue de l'Observatoire, Paris, FranceAntony LewisDepartment of Physics and Astronomy, University of Sussex, Brighton BN1 9QH, UKM. LiguoriDipartimento di Fisica e Astronomia G. Galilei, Universit degli Studi di Padova, Via Marzolo 8, 35131 Padova, ItalyP. B. LiljeInstitute of Theoretical Astrophysics, University of Oslo, Blindern, Oslo, NorwayV. LindholmDepartment of Physics, Gustaf Hllstrmin katu 2a, University of Helsinki, Helsinki, FinlandM. López-CaniegoEuropean Space Agency, ESAC, Planck Science Office, Camino bajo del Castillo, s/n, Urbanización Villafranca del Castillo, Villanueva de la Cañada, Madrid, SpainP. M. LubinDepartment of Physics, University of California, Santa Barbara, CA, USAYin-Zhe MaSchool of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
2019en
ABI
Annotatsiya
We report on the implications for cosmic inflation of the 2018 release of the Planck cosmic microwave background (CMB) anisotropy measurements. The results are fully consistent with those reported using the data from the two previous Planck cosmological releases, but have smaller uncertainties thanks to improvements in the characterization of polarization at low and high multipoles. Planck temperature, polarization, and lensing data determine the spectral index of scalar perturbations to be n s = 0.9649 ± 0.0042 at 68% CL. We find no evidence for a scale dependence of n s , either as a running or as a running of the running. The Universe is found to be consistent with spatial flatness with a precision of 0.4% at 95% CL by combining Planck with a compilation of baryon acoustic oscillation data. The Planck 95% CL upper limit on the tensor-to-scalar ratio, r 0.002 < 0.10, is further tightened by combining with the BICEP2/Keck Array BK15 data to obtain r 0.002 < 0.056. In the framework of standard single-field inflationary models with Einstein gravity, these results imply that: (a) the predictions of slow-roll models with a concave potential, V ″( ϕ ) < 0, are increasingly favoured by the data; and (b) based on two different methods for reconstructing the inflaton potential, we find no evidence for dynamics beyond slow roll. Three different methods for the non-parametric reconstruction of the primordial power spectrum consistently confirm a pure power law in the range of comoving scales 0.005 Mpc −1 ≲ k ≲ 0.2 Mpc −1 . A complementary analysis also finds no evidence for theoretically motivated parameterized features in the Planck power spectra. For the case of oscillatory features that are logarithmic or linear in k , this result is further strengthened by a new combined analysis including the Planck bispectrum data. The new Planck polarization data provide a stringent test of the adiabaticity of the initial conditions for the cosmological fluctuations. In correlated, mixed adiabatic and isocurvature models, the non-adiabatic contribution to the observed CMB temperature variance is constrained to 1.3%, 1.7%, and 1.7% at 95% CL for cold dark matter, neutrino density, and neutrino velocity, respectively. Planck power spectra plus lensing set constraints on the amplitude of compensated cold dark matter-baryon isocurvature perturbations that are consistent with current complementary measurements. The polarization data also provide improved constraints on inflationary models that predict a small statistically anisotropic quadupolar modulation of the primordial fluctuations. However, the polarization data do not support physical models for a scale-dependent dipolar modulation. All these findings support the key predictions of the standard single-field inflationary models, which will be further tested by future cosmological observations.
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