Authors
Peter AR Ade, N Aghanim, M Arnaud, M Ashdown, J Aumont, C Baccigalupi, AJ Banday, RB Barreiro, Nicola Bartolo, E Battaner, R Battye, K Benabed, Alain Benoit, A Benoit-Lévy, J-P Bernard, M Bersanelli, P Bielewicz, JJ Bock, A Bonaldi, L Bonavera, JR Bond, J Borrill, FR Bouchet, M Bucher, C Burigana, RC Butler, Erminia Calabrese, J-F Cardoso, A Catalano, A Challinor, A Chamballu, HC Chiang, PR Christensen, S Church, DL Clements, S Colombi, LPL Colombo, C Combet, F Couchot, A Coulais, BP Crill, A Curto, F Cuttaia, Luigi Danese, RD Davies, RJ Davis, Paolo de Bernardis, A De Rosa, Giulia De Zotti, J Delabrouille, F-X Desert, JM Diego, H Dole, SIMONA Donzelli, O Doré, M Douspis, A Ducout, X Dupac, G Efstathiou, F Elsner, TA Enßlin, HK Eriksen, J Fergusson, F Finelli, O Forni, M Frailis, AA Fraisse, E Franceschi, A Frejsel, S Galeotta, S Galli, K Ganga, M Giard, Y Giraud-Héraud, Eirik Gjerløw, J Gonzalez-Nuevo, KM Górski, S Gratton, Anna Gregorio, A Gruppuso, Jón E Gudmundsson, Frode Kristian Hansen, D Hanson, DL Harrison, A Heavens, G Helou, S Henrot-Versille, C Hernandez-Monteagudo, D Herranz, SR Hildebrandt, E Hivon, M Hobson, WA Holmes, Allan Hornstrup, W Hovest, Z Huang, KM Huffenberger, G Hurier, AH Jaffe, TR Jaffe, William C Jones, M Juvela, E Keihänen, R Keskitalo, TS Kisner, J Knoche, M Kunz, H Kurki-Suonio, G Lagache, A Lähteenmäki, J-M Lamarre, A Lasenby, M Lattanzi, CR Lawrence, R Leonardi, J Lesgourgues, F Levrier, A Lewis, Michele Liguori, Per Barth Lilje, Michael Linden-Vørnle, M Lopez-Caniego, PM Lubin, Y-Z Ma, JF Macias-Perez, G Maggio, D Maino, N Mandolesi, A Mangilli, A Marchini, M Maris, PG Martin, M Martinelli, E Martinez-Gonzalez, Silvia Masi, Sabino Matarrese, P McGehee, PR Meinhold, Alessandro Melchiorri, L Mendes, A Mennella, M Migliaccio, Susanta Mitra, M-A Miville-Deschenes, A Moneti, L Montier, G Morgante, D Mortlock, A Moss, D Munshi
Publication date
2016/10/1
Journal
Astronomy & Astrophysics
Volume
594
Pages
A14
Publisher
EDP sciences
Description
We study the implications of Planck data for models of dark energy (DE) and modified gravity (MG) beyond the standard cosmological constant scenario. We start with cases where the DE only directly affects the background evolution, considering Taylor expansions of the equation of state w(a), as well as principal component analysis and parameterizations related to the potential of a minimally coupled DE scalar field. When estimating the density of DE at early times, we significantly improve present constraints and find that it has to be below ~2% (at 95% confidence) of the critical density, even when forced to play a role for z < 50 only. We then move to general parameterizations of the DE or MG perturbations that encompass both effective field theories and the phenomenology of gravitational potentials in MG models. Lastly, we test a range of specific models, such as k-essence, f(R) theories, and coupled DE. In …
Scholar articles
PAR Ade, N Aghanim, M Arnaud, M Ashdown… - Astronomy & Astrophysics, 2016