• DOI:10.1051/0004-6361/201525830
• Corpus ID: 119262962

Planck 2015 results - XIII. Cosmological parameters

@article{Ade2015Planck2R,
  title={Planck 2015 results - XIII. Cosmological parameters},
  author={P. A. R. Ade and Nabila Aghanim and Monique D. Arnaud and Mark Ashdown and J. Aumont and Carlo Baccigalupi and Anthony J. Banday and Rita Bel{\'e}n Barreiro and James G. Bartlett and Nicola Bartolo and Eduardo Battaner and Richard A. Battye and Karim Benabed and Aur{\'e}lien Benoit and Aur{\'e}lien Benoit-L{\'e}vy and J-Ph. Bernard and M. Bersanelli and Pawel Bielewicz and James J. Bock and Anna Bonaldi and Laura Bonavera and J. Richard Bond and Julian Borrill and Francois R. Bouchet and Francois Boulanger and Manfred Bucher and Carlo Burigana and R. C. Butler and Erminia Calabrese and J.-F. Cardoso and A. Catalano and Anthony Challinor and A. Chamballu and Ranga-Ram Chary and H. C. Chiang and Jens Chluba and Philip R. Christensen and Sarah E. Church and David L. Clements and St{\'e}phane Colombi and Loris P. L. Colombo and C{\'e}line Combet and A. Coulais and Brendan P. Crill and A. Fernandez Curto and F. Cuttaia and Luigi Danese and Rodney D. Davies and R. J. Davis and Paolo Bernardis and Alessandra De Rosa and Gianfranco de Zotti and Jacques Delabrouille and F.-X. D{\'e}sert and Eleonora Di Valentino and Clive Dickinson and Jose M. Diego and Klaus Dolag and Herve A. Dole and Simona Donzelli and Olivier Dor{\'e} and Marian Douspis and Anne Ducout and Jo Dunkley and Xavier Dupac and George P. Efstathiou and Franz Elsner and Torsten A. Ensslin and Hans Kristian Eriksen and Marzieh Farhang and J. R. Fergusson and Fabio Finelli and Olivier Forni and Marco Frailis and Aur'elien A. Fraisse and Enrico Franceschi and Anne Mette Frejsel and S. Galeotta and Silvia Galli and Ken Ganga and C. Gauthier and Martina Gerbino and Tuhin Ghosh and Martin Giard and Yannick Giraud-H{\'e}raud and Elena Giusarma and Eirik Gjerl{\o}w and Joaqu{\'i}n Gonz{\'a}lez-Nuevo and Krzysztof M. Gorski and Steven Gratton and Anna Gregorio and Alessandro Gruppuso and Jon E. Gudmundsson and Jan Hamann and Frode K. Hansen and Duncan Hanson and D. L. Harrison and George Helou and S. Henrot-Versill{\'e} and Carlos Hernandez-Monteagudo and Diego Herranz and Sergi R. Hildebrandt and Eric Hivon and Michael P. Hobson and Warren Albert Holmes and Allan Hornstrup and W. Hovest and Z. Huang and Kevin M. Huffenberger and Guillaume Hurier and Andrew H. Jaffe and Tess R. Jaffe and William C Jones and Mika Juvela and Elina Keihanen and Reijo Keskitalo and Theodore Kisner and R{\"u}diger Kneissl and J{\"o}rg Knoche and Lloyd Knox and Martin Kunz and Hannu Kurki-Suonio and Guilaine Lagache and Anne Lahteenmaki and J-M. Lamarre and Anthony N. Lasenby and Massimiliano Lattanzi and Charles R. Lawrence and Janet Leahy and Rodrigo Leonardi and Julien Lesgourgues and F. Levrier and Antony Lewis and Michele Liguori and Per B. Lilje and M. J. D. Linden-V{\o}rnle and Marcos L{\'o}pez-Caniego and Philip Lubin and J. F. Mac{\'i}as-P{\'e}rez and Gianmarco Maggio and Davide Maino and Nazzareno Mandolesi and Anna Mangilli and Andrea Marchini and P. G. Martin and Matteo Martinelli and Enrique Mart{\'i}nez-Gonz{\'a}lez and Silvia Masi and S. Matarrese and Pasquale Mazzotta and Peregrine M. McGehee and Peter Meinhold and Alessandro Melchiorri and J. -. B. Melin and Luis Mendes and Aniello Mennella and Marina Migliaccio and Marius Millea and Subhasish Mitra and Marc-Antoine Miville-Desch{\^e}nes and Andrea Moneti and Laurent Montier and G. Morgante and Daniel J. Mortlock and Adam Moss and Dipak Munshi and J. Anthony Murphy and Pavel D. Naselsky and Federico Nati and Paolo Natoli and Calvin Barth Netterfield and Hans Ulrik N{\o}rgaard-Nielsen and Fabio Noviello and Dmitri D Novikov and Ilya Novikov and Carol Anne Oxborrow and Francesco Paci and Luca Pagano and François Pajot and Roberta Paladini and Daniela Paoletti and Bruce Partridge and Fabio Pasian and Guillaume Patanchon and Timothy J. Pearson and Olivier Perdereau and L. Perotto and F. Perrotta and Valeria Pettorino and Francesco Piacentini and Michel Piat and Elena Pierpaoli and Davide Pietrobon and St{\'e}phane Plaszczynski and Etienne Pointecouteau and Gianluca Polenta and L. A. Popa and Gabriel W. Pratt and Gary Marcel Prezeau and Simon Prunet and J-L. Puget and Jorg P. Rachen and William T. Reach and Rafael Rebolo and Martin Reinecke and Mathieu Remazeilles and C{\'e}cile Renault and Alessandro Renzi and Isabelle Ristorcelli and Graca M. Rocha and C. Dutruc Rosset and Mariachiara Rossetti and Gael M. Roudier and B. Rouill{\'e} d’Orfeuil and Michael Rowan-Robinson and Jos{\'e} Alberto Rubi{\~n}o-Mart{\'i}n and Ben Rusholme and Najla Said and Valentina Salvatelli and Laura Salvati and M. Sandri and D. Santos and Matti Savelainen and Giorgio Savini and Douglas Scott and Michael Dean Seiffert and Paolo Serra and E. P. S. Shellard and Locke D Spencer and Marta Spinelli and Vasily Stolyarov and Radek Stompor and R. Sudiwala and Rashid Sunyaev and David O. Sutton and A.-S. Suur-Uski and J. -F. Sygnet and Jan Tauber and Luca Terenzi and Luigi Toffolatti and Maurizio Tomasi and M. Tristram and Tiziana Trombetti and Marco Tucci and Jussi Tuovinen and M. Turler and G Umana and Luca Valenziano and Jussi Valiviita and Bartjan van Tent and Patricio Vielva and Fabrizio Villa and Lawrence A. Wade and Benjamin D. Wandelt and Ingunn Kathrine Wehus and Martin White and Simon D. M. White and Althea Wilkinson and D. Yvon and Andrea Zacchei and Andrea Zonca},
  journal={Astronomy and Astrophysics},
  year={2015},
  volume={594},
  pages={1-63}
}

• P. Ade, N. Aghanim, +258 authors A. Zonca
• Published 5 February 2015
• Physics
• Astronomy and Astrophysics

This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. The temperature and polarization power spectra are consistent with the standard spatially-flat 6-parameter ΛCDM cosmology with a power-law spectrum of adiabatic scalar perturbations (denoted “base ΛCDM” in this paper). From the Planck temperature data combined with Planck lensing, for this cosmology we find a Hubble constant, H0 = (67.8 ± 0.9) km s-1Mpc-1, a matter density parameter Ωm = 0.308 ± 0.012, and a tilted scalar spectral index with ns = 0.968 ± 0.006, consistent with the 2013 analysis. Note that in this abstract we quote 68% confidence limits on measured parameters and 95% upper limits on other parameters. We present the first results of polarization measurements with the Low Frequency Instrument at large angular scales. Combined with the Planck temperature and lensing data, these measurements give a reionization optical depth of τ = 0.066 ± 0.016, corresponding to a reionization redshift of . These results are consistent with those from WMAP polarization measurements cleaned for dust emission using 353-GHz polarization maps from the High Frequency Instrument. We find no evidence for any departure from base ΛCDM in the neutrino sector of the theory; for example, combining Planck observations with other astrophysical data we find Neff = 3.15 ± 0.23 for the effective number of relativistic degrees of freedom, consistent with the value Neff = 3.046 of the Standard Model of particle physics. The sum of neutrino masses is constrained to ∑ mν < 0.23 eV. The spatial curvature of our Universe is found to be very close to zero, with | ΩK | < 0.005. Adding a tensor component as a single-parameter extension to base ΛCDM we find an upper limit on the tensor-to-scalar ratio of r0.002< 0.11, consistent with the Planck 2013 results and consistent with the B-mode polarization constraints from a joint analysis of BICEP2, Keck Array, and Planck (BKP) data. Adding the BKP B-mode data to our analysis leads to a tighter constraint of r0.002 < 0.09 and disfavours inflationarymodels with a V(φ) ∝ φ2 potential. The addition of Planck polarization data leads to strong constraints on deviations from a purely adiabatic spectrum of fluctuations. We find no evidence for any contribution from isocurvature perturbations or from cosmic defects. Combining Planck data with other astrophysical data, including Type Ia supernovae, the equation of state of dark energy is constrained to w = −1.006 ± 0.045, consistent with the expected value for a cosmological constant. The standard big bang nucleosynthesis predictions for the helium and deuterium abundances for the best-fit Planck base ΛCDM cosmology are in excellent agreement with observations. We also constraints on annihilating dark matter and on possible deviations from the standard recombination history. In neither case do we find no evidence for new physics. The Planck results for base ΛCDM are in good agreement with baryon acoustic oscillation data and with the JLA sample of Type Ia supernovae. However, as in the 2013 analysis, the amplitude of the fluctuation spectrum is found to be higher than inferred from some analyses of rich cluster counts and weak gravitational lensing. We show that these tensions cannot easily be resolved with simple modifications of the base ΛCDM cosmology. Apart from these tensions, the base ΛCDM cosmology provides an excellent description of the Planck CMB observations and many other astrophysical data sets.