Planck 2018 results. VI. Cosmological parameters
Nabila Aghanim,Yashar Akrami,Yashar Akrami,Yashar Akrami,M. Ashdown,J. Aumont,Carlo Baccigalupi,Mario Ballardini,Mario Ballardini,A. J. Banday,A. J. Banday,R. B. Barreiro,N. Bartolo,N. Bartolo,S. Basak,Richard A. Battye,K. Benabed,J.-P. Bernard,J.-P. Bernard,Marco Bersanelli,Marco Bersanelli,P. Bielewicz,James J. Bock,J. R. Bond,Julian Borrill,Julian Borrill,François R. Bouchet,F. Boulanger,F. Boulanger,F. Boulanger,M. Bucher,M. Bucher,Carlo Burigana,Carlo Burigana,R. C. Butler,Erminia Calabrese,Jean-François Cardoso,Julien Carron,Anthony Challinor,H. C. Chiang,H. C. Chiang,Jens Chluba,L. P. L. Colombo,C. Combet,D. Contreras,B. P. Crill,F. Cuttaia,P. de Bernardis,G. de Zotti,Jacques Delabrouille,J.-M. Delouis,E. Di Valentino,Jose M. Diego,Olivier Doré,Marian Douspis,A. Ducout,X. Dupac,S. Dusini,George Efstathiou,Franz Elsner,Torsten A. Enßlin,H. K. Eriksen,Yabebal Fantaye,Yabebal Fantaye,Marzieh Farhang,James R. Fergusson,R. Fernandez-Cobos,Fabio Finelli,Francesco Forastieri,M. Frailis,A. A. Fraisse,E. Franceschi,Andrei V. Frolov,S. Galeotta,S. Galli,K. Ganga,Ricardo Genova-Santos,Ricardo Genova-Santos,Martina Gerbino,Tuhin Ghosh,Tuhin Ghosh,J. González-Nuevo,Krzysztof M. Gorski,Krzysztof M. Gorski,Serge Gratton,Alessandro Gruppuso,Jon E. Gudmundsson,Jon E. Gudmundsson,Jan Hamann,Will Handley,F. K. Hansen,D. Herranz,S. R. Hildebrandt,E. Hivon,Zhiqi Huang,Andrew H. Jaffe,W. C. Jones,A. Karakci,E. Keihänen,Reijo Keskitalo,K. Kiiveri,K. Kiiveri,J. Kim,Theodore Kisner,Lloyd Knox,Nicoletta Krachmalnicoff,Martin Kunz,Martin Kunz,Martin Kunz,Hannu Kurki-Suonio,Hannu Kurki-Suonio,Guilaine Lagache,J.-M. Lamarre,Anthony Lasenby,Mario G. Lattanzi,Charles R. Lawrence,M. Le Jeune,P. Lemos,Julien Lesgourgues,François Levrier,Antony Lewis,Michele Liguori,Michele Liguori,P. B. Lilje,M. Lilley,V. Lindholm,V. Lindholm,M. López-Caniego,Philip Lubin,Yin-Zhe Ma,Yin-Zhe Ma,J. F. Macías-Pérez,G. Maggio,Davide Maino,Davide Maino,N. Mandolesi,N. Mandolesi,A. Mangilli,A. Marcos-Caballero,M. Maris,Peter G. Martin,Matteo Martinelli,E. Martínez-González,Sabino Matarrese,Sabino Matarrese,N. Mauri,Jason D. McEwen,Peter Meinhold,Alessandro Melchiorri,A. Mennella,A. Mennella,M. Migliaccio,Marius Millea,Marius Millea,Marius Millea,Subhabrata Mitra,Subhabrata Mitra,M.-A. Miville-Deschênes,M.-A. Miville-Deschênes,Diego Molinari,Diego Molinari,L. Montier,L. Montier,Gianluca Morgante,Adam Moss,Paolo Natoli,Paolo Natoli,Hans Ulrik Nørgaard-Nielsen,L. Pagano,L. Pagano,D. Paoletti,Bruce Partridge,G. Patanchon,Hiranya V. Peiris,Francesca Perrotta,Valeria Pettorino,F. Piacentini,L. Polastri,G. Polenta,J.-L. Puget,J.-L. Puget,Jörg P. Rachen,M. Reinecke,Mathieu Remazeilles,A. Renzi,Graca Rocha,C. Rosset,G. Roudier,G. Roudier,G. Roudier,Jose Alberto Rubino-Martin,Jose Alberto Rubino-Martin,B. Ruiz-Granados,B. Ruiz-Granados,L. Salvati,M. Sandri,M. Savelainen,M. Savelainen,M. Savelainen,Douglas Scott,E. P. S. Shellard,C. Sirignano,C. Sirignano,G. Sirri,Locke D. Spencer,R. A. Sunyaev,R. A. Sunyaev,A.-S. Suur-Uski,A.-S. Suur-Uski,J. A. Tauber,D. Tavagnacco,D. Tavagnacco,M. Tenti,L. Toffolatti,L. Toffolatti,M. Tomasi,M. Tomasi,Tiziana Trombetti,Luca Valenziano,J. Valiviita,J. Valiviita,B. Van Tent,L. Vibert,L. Vibert,P. Vielva,Fabrizio Villa,Nicola Vittorio,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Martin White,Simon D. M. White,Andrea Zacchei,Andrea Zonca +232 more
TLDR
In this article, the authors present cosmological parameter results from the full-mission Planck measurements of the cosmic microwave background (CMB) anisotropies, combining information from the temperature and polarization maps and the lensing reconstruction.Abstract:
We present cosmological parameter results from the final full-mission Planck measurements of the cosmic microwave background (CMB) anisotropies, combining information from the temperature and polarization maps and the lensing reconstruction Compared to the 2015 results, improved measurements of large-scale polarization allow the reionization optical depth to be measured with higher precision, leading to significant gains in the precision of other correlated parameters Improved modelling of the small-scale polarization leads to more robust constraints on manyparameters,withresidualmodellinguncertaintiesestimatedtoaffectthemonlyatthe05σlevelWefindgoodconsistencywiththestandard spatially-flat6-parameter ΛCDMcosmologyhavingapower-lawspectrumofadiabaticscalarperturbations(denoted“base ΛCDM”inthispaper), from polarization, temperature, and lensing, separately and in combination A combined analysis gives dark matter density Ωch2 = 0120±0001, baryon density Ωbh2 = 00224±00001, scalar spectral index ns = 0965±0004, and optical depth τ = 0054±0007 (in this abstract we quote 68% confidence regions on measured parameters and 95% on upper limits) The angular acoustic scale is measured to 003% precision, with 100θ∗ = 10411±00003Theseresultsareonlyweaklydependentonthecosmologicalmodelandremainstable,withsomewhatincreasederrors, in many commonly considered extensions Assuming the base-ΛCDM cosmology, the inferred (model-dependent) late-Universe parameters are: HubbleconstantH0 = (674±05)kms−1Mpc−1;matterdensityparameterΩm = 0315±0007;andmatterfluctuationamplitudeσ8 = 0811±0006 We find no compelling evidence for extensions to the base-ΛCDM model Combining with baryon acoustic oscillation (BAO) measurements (and consideringsingle-parameterextensions)weconstraintheeffectiveextrarelativisticdegreesoffreedomtobe Neff = 299±017,inagreementwith the Standard Model prediction Neff = 3046, and find that the neutrino mass is tightly constrained toPmν < 012 eV The CMB spectra continue to prefer higher lensing amplitudesthan predicted in base ΛCDM at over 2σ, which pulls some parameters that affect thelensing amplitude away from the ΛCDM model; however, this is not supported by the lensing reconstruction or (in models that also change the background geometry) BAOdataThejointconstraintwithBAOmeasurementsonspatialcurvatureisconsistentwithaflatuniverse, ΩK = 0001±0002Alsocombining with Type Ia supernovae (SNe), the dark-energy equation of state parameter is measured to be w0 = −103±003, consistent with a cosmological constant We find no evidence for deviations from a purely power-law primordial spectrum, and combining with data from BAO, BICEP2, and Keck Array data, we place a limit on the tensor-to-scalar ratio r0002 < 006 Standard big-bang nucleosynthesis predictions for the helium and deuterium abundances for the base-ΛCDM cosmology are in excellent agreement with observations The Planck base-ΛCDM results are in good agreement with BAO, SNe, and some galaxy lensing observations, but in slight tension with the Dark Energy Survey’s combined-probe results including galaxy clustering (which prefers lower fluctuation amplitudes or matter density parameters), and in significant, 36σ, tension with local measurements of the Hubble constant (which prefer a higher value) Simple model extensions that can partially resolve these tensions are not favoured by the Planck dataread more
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Spectral distortion constraints on photon injection from low-mass decaying particles
TL;DR: In this paper, the authors compute the distortion signals from decaying particles that convert directly into photons at different epochs during cosmic history, focusing on injection energies $E_\mathrm{inj}\lesssim 20\,\mathm{keV}$.
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Rescaled Einstein-Hilbert gravity from f ( R ) gravity: Inflation, dark energy, and the swampland criteria
TL;DR: In this paper, the authors consider the scenario that the effective gravitational Lagrangian of a minimally coupled scalar field at large curvatures is described by a rescaled Einstein-Hilbert gravity, with the Ricci scalar being multiplied by a dimensionless parameter.
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The Buzzard Flock: Dark Energy Survey Synthetic Sky Catalogs
Joseph DeRose,Risa H. Wechsler,Matthew R. Becker,Michael T. Busha,Eli S. Rykoff,Niall MacCrann,Brandon M. S. Erickson,August E. Evrard,Andrey V. Kravtsov,Daniel Gruen,S. Allam,Santiago Avila,Sarah Bridle,David J. Brooks,E. Buckley-Geer,Aurelio Carnero Rosell,Matias Carrasco Kind,J. Carretero,Francisco J. Castander,Ross Cawthon,Martin Crocce,Luiz N. da Costa,Christopher J. Davis,Juan de Vicente,J. P. Dietrich,Peter Doel,Alex Drlica-Wagner,Pablo Fosalba,Josh Frieman,Juan Garcia-Bellido,G. Gutierrez,Will G. Hartley,Devon L. Hollowood,Ben Hoyle,David J. James,Elisabeth Krause,Kyler Kuehn,Nikolay Kuropatkin,Marcos Lima,Marcio A. G. Maia,Felipe Menanteau,Christopher J. Miller,Ramon Miquel,Ricardo L. C. Ogando,Andres Plazas Malagon,A. Kathy Romer,E. J. Sanchez,Rafe Schindler,Santiago Serrano,I. Sevilla-Noarbe,Mathew Smith,E. Suchyta,Molly E. C. Swanson,Gregory Tarle,Vinu Vikram +54 more
TL;DR: A suite of 18 synthetic sky catalogs designed to support science analysis of galaxies in the DES Y1 data is presented in this paper, which is tuned to match the observed evolution of galaxy counts at different luminosities and the spatial clustering of the galaxy population.
Journal ArticleDOI
Dark Energy Survey Year 1 Results: Cosmological Constraints from Cluster Abundances, Weak Lensing, and Galaxy Correlations
Chun-Hao To,Elisabeth Krause,Eduardo Rozo,Hao-Yi Wu,Daniel Gruen,Risa H. Wechsler,Tim Eifler,Eli S. Rykoff,M. Costanzi,Matthew R. Becker,Gary Bernstein,Jonathan Blazek,Sebastian Bocquet,Sarah Bridle,R. Cawthon,A. Choi,Martin Crocce,C. Davis,J. DeRose,Alex Drlica-Wagner,Jack Elvin-Poole,Xiao Fang,Arya Farahi,Oliver Friedrich,M. Gatti,Enrique Gaztanaga,Tommaso Giannantonio,W. G. Hartley,Ben Hoyle,Matt J. Jarvis,Niall MacCrann,T. McClintock,V. Miranda,Maria E. S. Pereira,Youngsoo Park,A. Porredon,J. Prat,Markus Rau,Ashley J. Ross,S. Samuroff,Carlos Solans Sanchez,I. Sevilla-Noarbe,Erin Sheldon,Michael Troxel,T. N. Varga,P. Vielzeuf,Yanxi Zhang,Joe Zuntz,T. M. C. Abbott,Michel Aguena,Alexandra Amon,J. Annis,Santiago Avila,E. Bertin,Sunayana Bhargava,David J. Brooks,D. L. Burke,A. Carnero Rosell,M. Carrasco Kind,J. Carretero,Chihway Chang,Christopher J. Conselice,L. N. da Costa,Tamara M. Davis,S. Desai,H. T. Diehl,J. P. Dietrich,S. Everett,August E. Evrard,I. Ferrero,B. Flaugher,P. Fosalba,Josh Frieman,Juan Garcia-Bellido,Robert A. Gruendl,G. Gutierrez,Samuel Hinton,D. L. Hollowood,K. Honscheid,Dragan Huterer,David J. James,Tesla E. Jeltema,Richard G. Kron,Kyler Kuehn,N. Kuropatkin,Marcos Lima,M. A. G. Maia,Jennifer L. Marshall,Felipe Menanteau,Ramon Miquel,Robert Morgan,J. Muir,J. Myles,Antonella Palmese,F. Paz-Chinchón,A. A. Plazas,A. K. Romer,A. Roodman,E. J. Sanchez,Basilio X. Santiago,V. Scarpine,S. Serrano,M. Smith,E. Suchyta,M. E. C. Swanson,G. Tarle,Daniel Thomas,Douglas L. Tucker,Jochen Weller,W. C. Wester,R. D. Wilkinson +110 more
TL;DR: This analysis is an important advance in both optical cluster cosmology and multiprobe analyses of upcoming wide imaging surveys and finds improved constraints on cosmological parameters as well as on the cluster observable-mass scaling relation.
Journal ArticleDOI
KiDS-1000 Methodology: Modelling and inference for joint weak gravitational lensing and spectroscopic galaxy clustering analysis
Benjamin Joachimi,Chieh-An Lin,Marika Asgari,Tilman Tröster,Catherine Heymans,Hendrik Hildebrandt,Fabian Köhlinger,Ariel G. Sánchez,Angus H. Wright,Maciej Bilicki,Chris Blake,J. L. van den Busch,Martin Crocce,Andrej Dvornik,Thomas Erben,Fedor Getman,Benjamin Giblin,Henk Hoekstra,Arun Kannawadi,Arun Kannawadi,Konrad Kuijken,Nicola R. Napolitano,Peter Schneider,Roman Scoccimarro,E. Sellentin,Huanyuan Shan,Huanyuan Shan,M. von Wietersheim-Kramsta,J. Zuntz +28 more
TL;DR: In this article, a joint cosmological analysis of weak gravitational lensing from the fourth data release of the ESO Kilo-Degree Survey (KiDS-1000) and galaxy clustering from the partially overlapping BOSS and 2dFLenS surveys is presented.
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Measurements of Omega and Lambda from 42 High-Redshift Supernovae
Saul Perlmutter,Saul Perlmutter,Greg Aldering,Gerson Goldhaber,Gerson Goldhaber,R. A. Knop,Peter Nugent,P. G. Castro,P. G. Castro,Susana E. Deustua,Sebastien Fabbro,Sebastien Fabbro,A. Goobar,A. Goobar,Donald E. Groom,I. M. Hook,I. M. Hook,A. G. Kim,A. G. Kim,A. G. Kim,M. Y. Kim,Julia C. Lee,Julia C. Lee,Nelson J. Nunes,Nelson J. Nunes,Reynald Pain,Reynald Pain,C. R. Pennypacker,C. R. Pennypacker,Robert Quimby,Christopher Lidman,Richard S. Ellis,Mike Irwin,Richard G. McMahon,Pilar Ruiz-Lapuente,Nicholas A. Walton,Bradley E. Schaefer,B. J. Boyle,Alexei V. Filippenko,Thomas Matheson,A. S. Fruchter,Nino Panagia,Nino Panagia,Heidi Jo Newberg,Warrick J. Couch +44 more
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Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
Adam G. Riess,Alexei V. Filippenko,Peter Challis,Alejandro Clocchiattia,Alan H. Diercks,Peter M. Garnavich,R. L. Gilliland,Craig J. Hogan,Saurabh Jha,Robert P. Kirshner,Bruno Leibundgut,Mark M. Phillips,David J Reiss,Brian P. Schmidt,Robert A. Schommer,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry +19 more
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Measurements of Omega and Lambda from 42 High-Redshift Supernovae
Saul Perlmutter,Greg Aldering,G. Goldhaber,R. A. Knop,Peter Nugent,P. G. Castro,Susana E. Deustua,Sebastien Fabbro,A. Goobar,D. E. Groom,I. M. Hook,A. G. Kim,M. Y. Kim,Julia C. Lee,Nelson J. Nunes,Reynald Pain,C. R. Pennypacker,R. M. Quimby,C. Lidman,Richard S. Ellis,Michael G. Irwin,Richard G. McMahon,P. Ruiz-Lapuente,Nicholas A. Walton,Bradley E. Schaefer,B. J. Boyle,Alexei V. Filippenko,Thomas Matheson,A. S. Fruchter,Nino Panagia,Heidi Jo Newberg,W. J. Couch +31 more
TL;DR: In this paper, the mass density, Omega_M, and cosmological-constant energy density of the universe were measured by the analysis of 42 Type Ia supernovae discovered by the Supernova Cosmology Project.
Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant To Appear in the Astronomical Journal
Adam G. Riess,Alexei V. Filippenko,Peter Challis,A. Clocchiatti,Alan H. Diercks,R. L. Gilliland,Craig J. Hogan,Saurabh Jha,Robert P. Kirshner,Bruno Leibundgut,David J Reiss,Brian P. Schmidt,Robert A. Schommer,R. Chris Smith,Jason Spyromilio,Christopher W. Stubbs,Nicholas B. Suntzeff,John L. Tonry +17 more
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