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Planck 2018 results. X. Constraints on inflation
- Source :
- Astronomy & Astrophysics. Vol 641, Sep 2020. A10, UCrea Repositorio Abierto de la Universidad de Cantabria, Universidad de Cantabria (UC), Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2020, 641, pp.A10. ⟨10.1051/0004-6361/201833887⟩, Astronomy & astrophysics, 641:A10. EDP Sciences, Collaboration, P, Akrami, 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, 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, Carron, J, Challinor, A, Chiang, H C, Colombo, L P L, Combet, C, Contreras, D, Crill, B P, Cuttaia, F, de Bernardis, P, de Zotti, G, Delabrouille, J, Delouis, J-M, Di Valentino, E, Diego, J M, Donzelli, S, 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, Forastieri, F, Frailis, M, Franceschi, E, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Gauthier, C, Génova-Santos, R T, Gerbino, M, Ghosh, T, González-Nuevo, J, Górski, K M, Gratton, S, Gruppuso, A, Gudmundsson, J E, Hamann, J, Handley, W, Hansen, F K, Herranz, D, Hivon, E, Hooper, D C, Huang, Z, Jaffe, A H, Jones, W C, Keihänen, E, Keskitalo, R, Kiiveri, K, Kim, J, Kisner, T S, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, C R, Le Jeune, M, Lesgourgues, J, Levrier, F, Lewis, A, Liguori, M, Lilje, P B, Lindholm, V, López-Caniego, M, Lubin, P M, Ma, Y-Z, Macías-Pérez, J F, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, 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, Mitra, S, Miville-Deschênes, M-A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Moss, A, Münchmeyer, M, Natoli, P, Nørgaard-Nielsen, H U, Pagano, L, Paoletti, D, Partridge, B, Patanchon, G, Peiris, H V, Perrotta, F, Pettorino, V, Piacentini, F, Polastri, L, Polenta, G, Puget, J-L, Rachen, J P, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, Rosset, C, Roudier, G, Rubiño-Martín, J A, Ruiz-Granados, B, Salvati, L, Sandri, M, Savelainen, M, Scott, D, Shellard, E P S, Shiraishi, M, Sirignano, C, Sirri, G, Spencer, L D, 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, White, S D M, Zacchei, A, Zibin, J P & Zonca, A 2020, ' Planck 2018 results: X. Constraints on inflation ', Astronomy and Astrophysics, vol. 641, A10 . https://doi.org/10.1051/0004-6361/201833887, WOS:000571763700010, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 641, pp.A10. ⟨10.1051/0004-6361/201833887⟩, RUO: Repositorio Institucional de la Universidad de Oviedo, Universidad de Oviedo (UNIOVI), Digital.CSIC. Repositorio Institucional del CSIC, instname, Collaboration, P; Akrami, Y; Arroja, F; Ashdown, M; Aumont, J; Baccigalupi, C; et al.(2018). Planck 2018 results. X. Constraints on inflation. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/8tv594cm, Astronomy & Astrophysics, 641, pp. 1-61, RUO. Repositorio Institucional de la Universidad de Oviedo, Astronomy & Astrophysics, 641, 1-61
- Publication Year :
- 2018
- Publisher :
- arXiv, 2018.
-
Abstract
- Planck Collaboration: et al.<br />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 ns = 0.9649 ± 0.0042 at 68% CL. We find no evidence for a scale dependence of ns, 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, r0.002 < 0.10, is further tightened by combining with the BICEP2/Keck Array BK15 data to obtain r0.002 < 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.<br />The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MINECO, JA, and RES (Spain); Tekes, AoF, and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); ERC and PRACE (EU).
- Subjects :
- cosmological model
inflaton: potential
Astronomy
cosmic background radiation: polarization
cosmic background radiation
Cosmic background radiation
01 natural sciences
7. Clean energy
expansion: multipole
Cosmic background radiation - Inflation
010303 astronomy & astrophysics
Settore FIS/05
slow-roll approximation
Cosmic background radiation, Inflation
BICEP
inflation: model
perturbation: scalar
DENSITY PERTURBATIONS
scale dependence
astro-ph.CO
Astrophysics - Cosmology and Nongalactic Astrophysics
temperature: anisotropy
satellite: Planck
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
NATURAL INFLATION
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
NO
power spectrum: primordial
power spectrum: scalar
Settore FIS/05 - Astronomia e Astrofisica
gravitation: lens
0103 physical sciences
LARGE-SCALE STRUCTURE
inflation
UNIVERSE SCENARIO
010308 nuclear & particles physics
ISOCURVATURE PERTURBATIONS
Computer Science::Information Retrieval
fluctuation: primordial
Astronomy and Astrophysics
115 Astronomy, Space science
Inflation
boundary condition
bispectrum
MICROWAVE BACKGROUND ANISOTROPIES
13. Climate action
Space and Planetary Science
gravitation
PHASE-TRANSITION
PRE-BIG-BANG
BAYESIAN-INFERENCE
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
BARYON ACOUSTIC-OSCILLATIONS
cosmic background radiation: anisotropy
Subjects
Details
- ISSN :
- 00046361 and 14320746
- Database :
- OpenAIRE
- Journal :
- Astronomy & Astrophysics. Vol 641, Sep 2020. A10, UCrea Repositorio Abierto de la Universidad de Cantabria, Universidad de Cantabria (UC), Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2020, 641, pp.A10. ⟨10.1051/0004-6361/201833887⟩, Astronomy & astrophysics, 641:A10. EDP Sciences, Collaboration, P, Akrami, 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, 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, Carron, J, Challinor, A, Chiang, H C, Colombo, L P L, Combet, C, Contreras, D, Crill, B P, Cuttaia, F, de Bernardis, P, de Zotti, G, Delabrouille, J, Delouis, J-M, Di Valentino, E, Diego, J M, Donzelli, S, 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, Forastieri, F, Frailis, M, Franceschi, E, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Gauthier, C, Génova-Santos, R T, Gerbino, M, Ghosh, T, González-Nuevo, J, Górski, K M, Gratton, S, Gruppuso, A, Gudmundsson, J E, Hamann, J, Handley, W, Hansen, F K, Herranz, D, Hivon, E, Hooper, D C, Huang, Z, Jaffe, A H, Jones, W C, Keihänen, E, Keskitalo, R, Kiiveri, K, Kim, J, Kisner, T S, Krachmalnicoff, N, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J-M, Lasenby, A, Lattanzi, M, Lawrence, C R, Le Jeune, M, Lesgourgues, J, Levrier, F, Lewis, A, Liguori, M, Lilje, P B, Lindholm, V, López-Caniego, M, Lubin, P M, Ma, Y-Z, Macías-Pérez, J F, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, 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, Mitra, S, Miville-Deschênes, M-A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Moss, A, Münchmeyer, M, Natoli, P, Nørgaard-Nielsen, H U, Pagano, L, Paoletti, D, Partridge, B, Patanchon, G, Peiris, H V, Perrotta, F, Pettorino, V, Piacentini, F, Polastri, L, Polenta, G, Puget, J-L, Rachen, J P, Reinecke, M, Remazeilles, M, Renzi, A, Rocha, G, Rosset, C, Roudier, G, Rubiño-Martín, J A, Ruiz-Granados, B, Salvati, L, Sandri, M, Savelainen, M, Scott, D, Shellard, E P S, Shiraishi, M, Sirignano, C, Sirri, G, Spencer, L D, 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, White, S D M, Zacchei, A, Zibin, J P & Zonca, A 2020, ' Planck 2018 results: X. Constraints on inflation ', Astronomy and Astrophysics, vol. 641, A10 . https://doi.org/10.1051/0004-6361/201833887, WOS:000571763700010, Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 641, pp.A10. ⟨10.1051/0004-6361/201833887⟩, RUO: Repositorio Institucional de la Universidad de Oviedo, Universidad de Oviedo (UNIOVI), Digital.CSIC. Repositorio Institucional del CSIC, instname, Collaboration, P; Akrami, Y; Arroja, F; Ashdown, M; Aumont, J; Baccigalupi, C; et al.(2018). Planck 2018 results. X. Constraints on inflation. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/8tv594cm, Astronomy & Astrophysics, 641, pp. 1-61, RUO. Repositorio Institucional de la Universidad de Oviedo, Astronomy & Astrophysics, 641, 1-61
- Accession number :
- edsair.doi.dedup.....436155719e5c94ee4f1f80197a364104
- Full Text :
- https://doi.org/10.48550/arxiv.1807.06211