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Planck 2015 results. XX. Constraints on inflation
- Source :
- NASA Astrophysics Data System, Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), Astronomy & Astrophysics, 594, 1-65, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 594, pp.A20. ⟨10.1051/0004-6361/201525898⟩, Scopus, RUO. Repositorio Institucional de la Universidad de Oviedo, instname, Astronomy & Astrophysics, 594, October, pp. 1-65, Astronomy and Astrophysics-A&A, 2016, 594, pp.A20. ⟨10.1051/0004-6361/201525898⟩, Ade, P A R, Aghanim, N, Arnaud, M, Arroja, F, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, A J, Barreiro, R B, Bartolo, N, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, J P, Bersanelli, M, Bielewicz, P, Bock, J J, Bonaldi, A, Bonavera, L, Bond, J R, Borrill, J, Bouchet, F R, Boulanger, F, Bucher, M, Burigana, C, Butler, R C, Calabrese, E, Cardoso, J F, Catalano, A, Challinor, A, Chamballu, A, Chary, R R, Chiang, H C, Christensen, P R, Church, S, Clements, D L, Colombi, S, Colombo, L P L, Combet, C, Contreras, D, Couchot, F, Coulais, A, Crill, B P, Curto, A, Cuttaia, F, Danese, L, Davies, R D, Davis, R J, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Désert, F X, Diego, J M, Dole, H, Donzelli, S, Doré, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, T A, Eriksen, H K, Fergusson, J, Finelli, F, Forni, O, Frailis, M, Fraisse, A A, Franceschi, E, Frejsel, A, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Gauthier, C, Giard, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, K M, Gratton, S, Gregorio, A, Gruppuso, A, Gudmundsson, J E, Hamann, J, Handley, W, Hansen, F K, Hanson, D, Harrison, D L, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S R, Hivon, E, Hobson, M, Holmes, W A, Hornstrup, A, Hovest, W, Huang, Z, Huffenberger, K M, Hurier, G, Jaffe, A H, Jaffe, T R, Jones, W C, Juvela, M, Keihänen, E, Keskitalo, R, Kim, J, Kisner, T S, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J M, Lasenby, A, Lattanzi, M, Lawrence, C R, Leonardi, R, Lesgourgues, J, Levrier, F, Lewis, A M, Liguori, M, Lilje, P B, Linden-Vørnle, M, López-Caniego, M, Lubin, P M, Ma, Y Z, Maciás-Pérez, J F, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Maris, M, Martin, P G, Martínez-González, E, Masi, S, Matarrese, S, Mcgehee, P, Meinhold, P R, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, M A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Münchmeyer, M, Munshi, D, Murphy, J A, Naselsky, P, Nati, F, Natoli, P, Netterfield, C B, Nørgaard-Nielsen, H U, Noviello, F, Novikov, D, Novikov, I, Oxborrow, C A, Paci, F, Pagano, L, Pajot, F, Paladini, R, Pandolfi, S, Paoletti, D, Pasian, F, Patanchon, G, Pearson, T J, Peiris, H V, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Popa, L, Pratt, G W, Prézeau, G, Prunet, S, Puget, J L, Rachen, J P, Reach, W T, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Renzi, A, Ristorcelli, I, Rocha, G, Rosset, C, Rossetti, M, Roudier, G, Rowan-Robinson, M, Rubinõ-Martín, J A, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Seiffert, M D, Shellard, E P S, Shiraishi, M, Spencer, L D, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A S, Sygnet, J F, Tauber, J A, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Trombetti, T, Tucci, M, Tuovinen, J, Valenziano, L, Valiviita, J, Van Tent, B, Vielva, P, Villa, F, Wade, L A, Wandelt, B D, Wehus, I K, White, M, Yvon, D, Zacchei, A, Zibin, J P & Zonca, A 2016, ' Planck 2015 results: XX. Constraints on inflation ', Astronomy and Astrophysics, vol. 594, A20 . https://doi.org/10.1051/0004-6361/201525898, Digibug. Repositorio Institucional de la Universidad de Granada, Consejo Superior de Investigaciones Científicas (CSIC)
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Abstract
- 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). A description of the Planck Collaboration and a list of its members, indicating which technical or scientific activities they have been involved in, can be found at http://www.cosmos.esa.int/web/planck/ planck-collaboration. This research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231. Part of this work was undertaken at the STFC DiRAC HPC Facilities at the University of Cambridge, funded by UK BIS National E-infrastructure capital grants. We gratefully acknowledge the IN2P3 Computer Center (http://cc.in2p3.fr) for providing a significant amount of the computing resources and services needed for this work.<br />We present the implications for cosmic inflation of the Planck measurements of the cosmic microwave background (CMB) anisotropies in both temperature and polarization based on the full Planck survey, which includes more than twice the integration time of the nominal survey used for the 2013 release papers. The Planck full mission temperature data and a first release of polarization data on large angular scales measure the spectral index of curvature perturbations to be ns = 0.968 ± 0.006 and tightly constrain its scale dependence to dns/dln k = −0.003 ± 0.007 when combined with the Planck lensing likelihood. When the Planck high-` polarization data are included, the results are consistent and uncertainties are further reduced. The upper bound on the tensor-to-scalar ratio is r0.002 < 0.11 (95% CL). This upper limit is consistent with the B-mode polarization constraint r < 0.12 (95% CL) obtained from a joint analysis of the BICEP2/Keck Array and Planck data. These results imply that V(φ) ∝ φ 2 and natural inflation are now disfavoured compared to models predicting a smaller tensor-to-scalar ratio, such as R 2 inflation. We search for several physically motivated deviations from a simple power-law spectrum of curvature perturbations, including those motivated by a reconstruction of the inflaton potential not relying on the slow-roll approximation. We find that such models are not preferred, either according to a Bayesian model comparison or according to a frequentist simulation-based analysis. Three independent methods reconstructing the primordial power spectrum consistently recover a featureless and smooth PR(k) over the range of scales 0.008 Mpc−1<br />Planck (http://www.esa.int/Planck) is a project of the European Space Agency (ESA) with instruments provided by two scientific consortia funded by ESA member states and led by Principal Investigators from France and Italy, telescope reflectors provided through a collaboration between ESA and a scientific consortium led and funded by Denmark, and additional contributions from NASA (USA).
- Subjects :
- Inflation
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Astronomy
Astrophysics
Cosmic background radiation
01 natural sciences
Early Universe
010303 astronomy & astrophysics
GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
media_common
QB
Physics
Planck temperature
Physical Sciences
astro-ph.CO
symbols
Astrophysics - Cosmology and Nongalactic Astrophysics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
media_common.quotation_subject
NATURAL INFLATION
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
Astronomy & Astrophysics
NO
symbols.namesake
Theoretical physics
Settore FIS/05 - Astronomia e Astrofisica
theory [Cosmology]
LARGE-SCALE STRUCTURE
0103 physical sciences
Planck
Cosmology: theory
Astronomy and Astrophysics
Space and Planetary Science
Science & Technology
010308 nuclear & particles physics
COSMOLOGICAL PERTURBATIONS
Astronomy and Astrophysic
0201 Astronomical And Space Sciences
TENSOR PERTURBATIONS
13. Climate action
PROBE WMAP OBSERVATIONS
PRE-BIG-BANG
2-FIELD INFLATION
MICROWAVE BACKGROUND POLARIZATION
BARYON ACOUSTIC-OSCILLATIONS
EXPANDING UNIVERSE
cosmic background radiation
cosmology: theory
early Universe
inflation
Subjects
Details
- ISSN :
- 00046361 and 14320746
- Database :
- OpenAIRE
- Journal :
- NASA Astrophysics Data System, Digibug: Repositorio Institucional de la Universidad de Granada, Universidad de Granada (UGR), Astronomy & Astrophysics, 594, 1-65, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, EDP Sciences, 2016, 594, pp.A20. ⟨10.1051/0004-6361/201525898⟩, Scopus, RUO. Repositorio Institucional de la Universidad de Oviedo, instname, Astronomy & Astrophysics, 594, October, pp. 1-65, Astronomy and Astrophysics-A&A, 2016, 594, pp.A20. ⟨10.1051/0004-6361/201525898⟩, Ade, P A R, Aghanim, N, Arnaud, M, Arroja, F, Ashdown, M, Aumont, J, Baccigalupi, C, Ballardini, M, Banday, A J, Barreiro, R B, Bartolo, N, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, J P, Bersanelli, M, Bielewicz, P, Bock, J J, Bonaldi, A, Bonavera, L, Bond, J R, Borrill, J, Bouchet, F R, Boulanger, F, Bucher, M, Burigana, C, Butler, R C, Calabrese, E, Cardoso, J F, Catalano, A, Challinor, A, Chamballu, A, Chary, R R, Chiang, H C, Christensen, P R, Church, S, Clements, D L, Colombi, S, Colombo, L P L, Combet, C, Contreras, D, Couchot, F, Coulais, A, Crill, B P, Curto, A, Cuttaia, F, Danese, L, Davies, R D, Davis, R J, De Bernardis, P, De Rosa, A, De Zotti, G, Delabrouille, J, Désert, F X, Diego, J M, Dole, H, Donzelli, S, Doré, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, T A, Eriksen, H K, Fergusson, J, Finelli, F, Forni, O, Frailis, M, Fraisse, A A, Franceschi, E, Frejsel, A, Frolov, A, Galeotta, S, Galli, S, Ganga, K, Gauthier, C, Giard, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, K M, Gratton, S, Gregorio, A, Gruppuso, A, Gudmundsson, J E, Hamann, J, Handley, W, Hansen, F K, Hanson, D, Harrison, D L, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S R, Hivon, E, Hobson, M, Holmes, W A, Hornstrup, A, Hovest, W, Huang, Z, Huffenberger, K M, Hurier, G, Jaffe, A H, Jaffe, T R, Jones, W C, Juvela, M, Keihänen, E, Keskitalo, R, Kim, J, Kisner, T S, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J M, Lasenby, A, Lattanzi, M, Lawrence, C R, Leonardi, R, Lesgourgues, J, Levrier, F, Lewis, A M, Liguori, M, Lilje, P B, Linden-Vørnle, M, López-Caniego, M, Lubin, P M, Ma, Y Z, Maciás-Pérez, J F, Maggio, G, Maino, D, Mandolesi, N, Mangilli, A, Maris, M, Martin, P G, Martínez-González, E, Masi, S, Matarrese, S, Mcgehee, P, Meinhold, P R, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, M A, Molinari, D, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Münchmeyer, M, Munshi, D, Murphy, J A, Naselsky, P, Nati, F, Natoli, P, Netterfield, C B, Nørgaard-Nielsen, H U, Noviello, F, Novikov, D, Novikov, I, Oxborrow, C A, Paci, F, Pagano, L, Pajot, F, Paladini, R, Pandolfi, S, Paoletti, D, Pasian, F, Patanchon, G, Pearson, T J, Peiris, H V, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Popa, L, Pratt, G W, Prézeau, G, Prunet, S, Puget, J L, Rachen, J P, Reach, W T, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Renzi, A, Ristorcelli, I, Rocha, G, Rosset, C, Rossetti, M, Roudier, G, Rowan-Robinson, M, Rubinõ-Martín, J A, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Seiffert, M D, Shellard, E P S, Shiraishi, M, Spencer, L D, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A S, Sygnet, J F, Tauber, J A, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Trombetti, T, Tucci, M, Tuovinen, J, Valenziano, L, Valiviita, J, Van Tent, B, Vielva, P, Villa, F, Wade, L A, Wandelt, B D, Wehus, I K, White, M, Yvon, D, Zacchei, A, Zibin, J P & Zonca, A 2016, ' Planck 2015 results: XX. Constraints on inflation ', Astronomy and Astrophysics, vol. 594, A20 . https://doi.org/10.1051/0004-6361/201525898, Digibug. Repositorio Institucional de la Universidad de Granada, Consejo Superior de Investigaciones Científicas (CSIC)
- Accession number :
- edsair.doi.dedup.....38d95200d22cbf6ea1e781c193bbe31f