Planck 2013 results. XVI. Cosmological parameters
Peter A. R. Ade,Nabila Aghanim,C. Armitage-Caplan,Monique Arnaud,M. Ashdown,Fernando Atrio-Barandela,J. Aumont,Carlo Baccigalupi,A. J. Banday,R. B. Barreiro,James G. Bartlett,E. Battaner,K. Benabed,Alain Benoit,A. Benoit-Lévy,J.-P. Bernard,Marco Bersanelli,P. Bielewicz,Jérôme Bobin,James J. Bock,Anna Bonaldi,J. R. Bond,Julian Borrill,François R. Bouchet,M. Bridges,M. Bucher,Carlo Burigana,R. C. Butler,Erminia Calabrese,B. Cappellini,Jean-François Cardoso,A. Catalano,Anthony Challinor,A. Chamballu,Ranga-Ram Chary,Xin Chen,H. C. Chiang,Lung-Yih Chiang,P. R. Christensen,Sarah E. Church,David L. Clements,S. Colombi,L. P. L. Colombo,F. Couchot,A. Coulais,B. P. Crill,A. Curto,F. Cuttaia,Luigi Danese,R. D. Davies,R. J. Davis,P. de Bernardis,A. de Rosa,G. de Zotti,Jacques Delabrouille,J.-M. Delouis,F.-X. Désert,Clive Dickinson,Jose M. Diego,Klaus Dolag,H. Dole,S. Donzelli,Olivier Doré,Marian Douspis,Jo Dunkley,X. Dupac,George Efstathiou,F. Elsner,Torsten A. Enßlin,H. K. Eriksen,Fabio Finelli,Olivier Forni,M. Frailis,Aurelien A. Fraisse,E. Franceschi,T. C. Gaier,S. Galeotta,Silvia Galli,K. Ganga,M. Giard,Giovanna Giardino,Y. Giraud-Héraud,E. Gjerløw,J. González-Nuevo,Krzysztof M. Gorski,Serge Gratton,A. Gregorio,Alessandro Gruppuso,Jon E. Gudmundsson,J. Haissinski,Jan Hamann,F. K. Hansen,Duncan Hanson,D. L. Harrison,Sophie Henrot-Versille,C. Hernández-Monteagudo,D. Herranz,S. R. Hildebrandt,E. Hivon,Michael P. Hobson,W. A. Holmes,Allan Hornstrup,Z. Hou,W. Hovest,Kevin M. Huffenberger,Andrew H. Jaffe,T. R. Jaffe,J. Jewell,W. C. Jones,Mika Juvela,E. Keihänen,Reijo Keskitalo,Theodore Kisner,R. Kneissl,J. Knoche,Lloyd Knox,Martin Kunz,Hannu Kurki-Suonio,Guilaine Lagache,Anne Lähteenmäki,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,R. J. Laureijs,Charles R. Lawrence,S. Leach,J. P. Leahy,R. Leonardi,J. Leon-Tavares,Julien Lesgourgues,Antony Lewis,Michele Liguori,P. B. Lilje,M. Linden-Vørnle,M. López-Caniego,Philip Lubin,J. F. Macías-Pérez,Bruno Maffei,Davide Maino,N. Mandolesi,Michele Maris,D. J. Marshall,Peter G. Martin,E. Martínez-González,Silvia Masi,Marcella Massardi,Sabino Matarrese,F. Matthai,Pasquale Mazzotta,Peter Meinhold,Alessandro Melchiorri,J.-B. Melin,L. Mendes,Eloisa Menegoni,A. Mennella,M. Migliaccio,M. Millea,Subhabrata Mitra,M.-A. Miville-Deschênes,A. Moneti,L. Montier,Gianluca Morgante,Daniel J. Mortlock,Adam Moss,Dipak Munshi,J. A. Murphy,Pavel Naselsky,Federico Nati,Paolo Natoli,Calvin B. Netterfield,Hans Ulrik Nørgaard-Nielsen,F. Noviello,Dmitry Novikov,I. D. Novikov,I. J. O'Dwyer,S. Osborne,Carol Anne Oxborrow,F. Paci,L. Pagano,F. Pajot,Daniela Paoletti,Bruce Partridge,F. Pasian,G. Patanchon,David Pearson,T. J. Pearson,H. V. Peiris,O. Perdereau,L. Perotto,Francesca Perrotta,Valeria Pettorino,F. Piacentini,M. Piat,E. Pierpaoli,Davide Pietrobon,Stéphane Plaszczynski,Paola Platania,Etienne Pointecouteau,G. Polenta,N. Ponthieu,L. Popa,T. Poutanen,G. W. Pratt,G. Prézeau,Simon Prunet,J.-L. Puget,Jörg P. Rachen,William T. Reach,Rafael Rebolo,M. Reinecke,Mathieu Remazeilles,C. Renault,S. Ricciardi,T. Riller,I. Ristorcelli,Graca Rocha,C. Rosset,G. Roudier,Michael Rowan-Robinson,Jose Alberto Rubino-Martin,Ben Rusholme,M. Sandri,D. Santos,M. Savelainen,Giorgio Savini,Douglas Scott,Michael Seiffert,E. P. S. Shellard,Locke D. Spencer,Jean-Luc Starck,V. Stolyarov,R. Stompor,R. V. Sudiwala,R. A. Sunyaev,F. Sureau,D. Sutton,A.-S. Suur-Uski,J.-F. Sygnet,J. A. Tauber,Daniele Tavagnacco,Luca Terenzi,L. Toffolatti,M. Tomasi,M. Tristram,M. Tucci,J. Tuovinen,M. Turler,G. Umana,Luca Valenziano,Jussi-Pekka Väliviita,B. Van Tent,P. Vielva,Fabrizio Villa,Nicola Vittorio,L. A. Wade,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Martin White,Simon D. M. White,Althea Wilkinson,D. Yvon,Andrea Zacchei,Andrea Zonca +262 more
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In this paper, the authors present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra, which are extremely well described by the standard spatially-flat six-parameter LCDM cosmology.Abstract:
We present the first results based on Planck measurements of the CMB temperature and lensing-potential power spectra. The Planck spectra at high multipoles are extremely well described by the standard spatially-flat six-parameter LCDM cosmology. In this model Planck data determine the cosmological parameters to high precision. We find a low value of the Hubble constant, H0=67.3+/-1.2 km/s/Mpc and a high value of the matter density parameter, Omega_m=0.315+/-0.017 (+/-1 sigma errors) in excellent agreement with constraints from baryon acoustic oscillation (BAO) surveys. Including curvature, we find that the Universe is consistent with spatial flatness to percent-level precision using Planck CMB data alone. We present results from an analysis of extensions to the standard cosmology, using astrophysical data sets in addition to Planck and high-resolution CMB data. None of these models are favoured significantly over standard LCDM. The deviation of the scalar spectral index from unity is insensitive to the addition of tensor modes and to changes in the matter content of the Universe. We find a 95% upper limit of r<0.11 on the tensor-to-scalar ratio. There is no evidence for additional neutrino-like relativistic particles. Using BAO and CMB data, we find N_eff=3.30+/-0.27 for the effective number of relativistic degrees of freedom, and an upper limit of 0.23 eV for the summed neutrino mass. Our results are in excellent agreement with big bang nucleosynthesis and the standard value of N_eff=3.046. We find no evidence for dynamical dark energy. Despite the success of the standard LCDM model, this cosmology does not provide a good fit to the CMB power spectrum at low multipoles, as noted previously by the WMAP team. While not of decisive significance, this is an anomaly in an otherwise self-consistent analysis of the Planck temperature data.read more
Citations
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On a new theoretical framework for rr lyrae stars. i. the metallicity dependence
Marcella Marconi,G. Coppola,Giuseppe Bono,Giuseppe Bono,Vittorio F. Braga,Vittorio F. Braga,Adriano Pietrinferni,R. Buonanno,R. Buonanno,Marco Castellani,I. Musella,Vincenzo Ripepi,R. F. Stellingwerf +12 more
TL;DR: In this article, a nonlinear, time-dependent convective hydrodynamical model of RR Lyrae stars is presented, assuming a constant helium-to-metal enrichment ratio and a broad range in metal abundances (Z = 0.0001?0.02).
Journal ArticleDOI
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
Marco Ajello,R. Angioni,R. Angioni,Magnus Axelsson,Magnus Axelsson,Jean Ballet,Guido Barbiellini,Guido Barbiellini,Denis Bastieri,Denis Bastieri,J. Becerra González,Ronaldo Bellazzini,Elisabetta Bissaldi,Elisabetta Bissaldi,Elliott D. Bloom,R. Bonino,R. Bonino,Eugenio Bottacini,Eugenio Bottacini,P. Bruel,S. Buson,Fabio Cafardo,R. A. Cameron,E. Cavazzuti,Sina Chen,Sina Chen,C. C. Cheung,Stefano Ciprini,Stefano Ciprini,D. Costantin,S. Cutini,Filippo D'Ammando,P. de la Torre Luque,R. de Menezes,R. de Menezes,F. de Palma,Abhishek Desai,N. Di Lalla,L. Di Venere,L. Di Venere,Aaron Dominguez,F. Fana Dirirsa,Elizabeth C. Ferrara,Justin D. Finke,Anna Franckowiak,Yasushi Fukazawa,Stefan Funk,P. Fusco,P. Fusco,F. Gargano,S. Garrappa,Dario Gasparrini,Dario Gasparrini,Nicola Giglietto,Nicola Giglietto,Francesco Giordano,Francesco Giordano,Marcello Giroletti,David A. Green,I. A. Grenier,Sylvain Guiriec,Sylvain Guiriec,S. Harita,E. Hays,D. Horan,R. Itoh,G. Jóhannesson,G. Jóhannesson,Miloš Kovačević,Felicia Krauss,Michael Kreter,Michael Kreter,M. Kuss,Stefan Larsson,Stefan Larsson,Stefan Larsson,C. Leto,J. Li,Ioannis Liodakis,Francesco Longo,Francesco Longo,F. Loparco,F. Loparco,B. Lott,M. N. Lovellette,P. Lubrano,G. M. Madejski,S. Maldera,Alberto Manfreda,G. Martí-Devesa,Francesco Massaro,Francesco Massaro,Mn Mazziotta,I. Mereu,I. Mereu,Manuel Meyer,Giulia Migliori,Nestor Mirabal,Nestor Mirabal,Tsunefumi Mizuno,M. E. Monzani,A. Morselli,Igor V. Moskalenko,M. Negro,M. Negro,Rodrigo Nemmen,E. Nuss,L. S. Ojha,Roopesh Ojha,Nicola Omodei,M. Orienti,E. Orlando,E. Orlando,J. F. Ormes,Vaidehi S. Paliya,Z. Pei,H. A. Peña-Herazo,Massimo Persic,Melissa Pesce-Rollins,Leonid Petrov,F. Piron,H. Poon,Giacomo Principe,S. Rainò,S. Rainò,Riccardo Rando,Riccardo Rando,Bindu Rani,Bindu Rani,M. Razzano,Soebur Razzaque,A. Reimer,Olaf Reimer,Frank K. Schinzel,Frank K. Schinzel,D. Serini,Carmelo Sgrò,E. J. Siskind,Gloria Spandre,P. Spinelli,P. Spinelli,D. J. Suson,Yutaro Tachibana,D. J. Thompson,Diego F. Torres,Eleonora Torresi,E. Troja,E. Troja,J. Valverde,P. van Zyl,P. van Zyl,M. Yassine,M. Yassine +152 more
TL;DR: The 4LAC catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (|b|>10°deg}).
Journal ArticleDOI
Energy conditions in f(R) gravity
TL;DR: The null and strong energy conditions in this framework are derived from Raychaudhuri's equation along with the requirement that gravity is attractive, whereas the weak and dominant energy conditions are stated from a comparison with the energy conditions that can be obtained in a direct approach via an effective energy-momentum tensor for f(R) gravity.
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The landscape of QCD axion models
TL;DR: The landscape of QCD axion models is reviewed in this paper, where theoretical constructions that extend the window for the axion mass and couplings beyond conventional regions are highlighted and classified Bounds from cosmology, astrophysics and experimental searches are reexamined and updated
Journal ArticleDOI
Bent by baryons: the low-mass galaxy-halo relation
Till Sawala,Carlos S. Frenk,Azadeh Fattahi,Julio F. Navarro,Richard G. Bower,Robert A. Crain,Robert A. Crain,Claudio Dalla Vecchia,Michelle Furlong,Adrian Jenkins,Ian G. McCarthy,Yan Qu,Matthieu Schaller,Joop Schaye,Tom Theuns +14 more
TL;DR: In this article, the authors show that the widely used method of abundance matching based on dark matter only simulations fails at the low mass end because two of its underlying assumptions are broken: only a small fraction of low mass halos host a visible galaxy, and halos grow at a lower rate due to the effect of baryons.
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