Authors
Planck Collaboration, PAR Ade, N Aghanim, C Armitage-Caplan, M Arnaud, M Ashdown, F Atrio-Barandela, J Aumont, C Baccigalupi, AJ Banday, RB Barreiro, JG Bartlett, N Bartolo, E Battaner, K Benabed, A Benoit, A Benoit-Levy, JP Bernard, M Bersanelli, P Bielewicz, J Bobin, JJ Bock, A Bonaldi, JR Bond, J Borrill, FR Bouchet, M Bridges, M Bucher, C Burigana, RC Butler, E Calabrese, JF Cardoso, A Catalano, A Challinor, A Chamballu, HC Chiang, LY Chiang, PR Christensen, S Church, DL Clements, S Colombi, LPL Colombo, F Couchot, A Coulais, BP Crill, A Curto, F Cuttaia, L Danese, RD Davies, RJ Davis, PD Bernardis, AD Rosa, GD Zotti, J Delabrouille, JM Delouis, FX Desert, C Dickinson, JM Diego, H Dole, S Donzelli, O Dore, M Douspis, J Dunkley, X Dupac, G Efstathiou, TA Ensslin, HK Eriksen, F Finelli, O Forni, M Frailis, E Franceschi, S Galeotta, K Ganga, C Gauthier, M Giard, G Giardino, Y Giraud-Hiraud, J Gonzalez-Nuevo, KM Gorski, S Gratton, A Gregorio, A Gruppuso, J Hamann, FK Hansen, D Hanson, D Harrison, S Henrot-Versille, C Hernandez-Monteagudo, D Herranz, SR Hildebrandt, E Hivon, M Hobson, WA Holmes, A Hornstrup, W Hovest, KM Huffenberger, AH Jaffe, TR Jaffe, WC Jones, M Juvela, E Keihanen, R Keskitalo, TS Kisner, R Kneissl, J Knoche, L Knox, M Kunz, H Kurki-Suonio, G Lagache, A Lahteenmaki, JM Lamarre, A Lasenby, RJ Laureijs, CR Lawrence, S Leach, JP Leahy, R Leonardi, J Lesgourgues, A Lewis, M Liguori, PB Lilje, M Linden-Vernle, M Lopez-Caniego, PM Lubin, JF Macias-Perez, B Maffei, D Maino, N Mandolesi, M Maris, DJ Marshall, PG Martin, E Martinez-Gonzalez, S Masi, M Massardi, S Matarrese, F Matthai, P Mazzotta, PR Meinhold, A Melchiorri, L Mendes, A Mennella, M Migliaccio, S Mitra, MA Miville-Deschenes, A Moneti, L Montier, G Morgante, D Mortlock, A Moss, D Munshi
Publication date
2013/3/20
Journal
Astron. Astrophys.
Volume
571
Pages
A22-A22
Publisher
EDP Sciences
Description
We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combined with the WMAP large-angle polarization, constrain the scalar spectral index to be ns= 0.9603±0.0073, ruling out exact scale invariance at over 5sigma. Planck establishes an upper bound on the tensor-to-scalar ratio of r< 0.11 (95% CL). The Planck data thus shrink the space of allowed standard inflationary models, preferring potentials with V''< 0. Exponential potential models, the simplest hybrid inflationary models, and monomial potential models of degree n>= 2 do not provide a good fit to the data. Planck does not find statistically significant running of the scalar spectral index, obtaining dns/dlnk=-0.0134±0.0090. We verify these conclusions through a numerical analysis, which makes no slow-roll approximation, and carry out a Bayesian parameter estimation and …
Total citations
Scholar articles
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