期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 470, 期 3, 页码 2617-2652出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stx721
关键词
distance scale; large-scale structure of Universe; cosmology: observations
资金
- Trans-regional Collaborative Research Centre 'The Dark Universe' of the German Research Foundation (DFG) [TR33]
- UK Space Agency [ST/N00180X/1]
- U.S. Department of Energy, Office of Science, Office of High Energy Physics [DE-SC0010331]
- European Research Council under the European Community [FP7-IDEAS-Phys. LSS 240117]
- Spanish MINECO of ICCUB (Unidad de Excelencia 'Maria de Maeztu') [AYA2014-58747-P, MDM-2014-0369]
- U.S. Department ofEnergy, Office of Science, Office of High Energy Physics [DE-SC0013718, DE-SC0009959, DE-SC0014329]
- Labex ILP part of the Idex SUPER [ANR-10-LABX-63]
- Agence Nationale de la Recherche, as part of the programme Investissements d'avenir [ANR-11-IDEX-0004-02]
- UK Science and Technology Facilities Research Council [ST/M001709/1, ST/N000668/1]
- European Research Council [614030 Darksurvey]
- STFC
- Ernest Rutherford Fellowship scheme
- National Research Foundation of Korea (NRF) through NRF-SGER - Korean Ministry of Education, Science and Technology (MoEST) [2014055950]
- faculty research fund of Sejong University
- DOE [DE-AC02-98CH10886]
- Science and Technology Facilities Council via an Ernest Rutherford Fellowship [ST/K004719/1]
- Alfred P. Sloan Foundation
- National Science Foundation
- U.S. Department of Energy Office of Science
- University of Arizona
- Brazilian Participation Group
- Brookhaven National Laboratory
- University of Cambridge
- Carnegie Mellon University
- University of Florida
- French Participation Group
- German Participation Group
- Harvard University
- Instituto de Astrofisica de Canarias
- Michigan State/Notre Dame/JINA Participation Group
- Johns Hopkins University
- Lawrence Berkeley National Laboratory
- Max Planck Institute for Astrophysics
- Max Planck Institute for Extraterrestrial Physics
- New Mexico State University
- New York University
- Ohio State University
- Pennsylvania State University
- University of Portsmouth
- Princeton University
- Spanish Participation Group
- University of Tokyo
- University of Utah
- Vanderbilt University
- University of Virginia
- University of Washington
- Yale University
- ESA Member States
- NASA and Canada
- Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]
- U.S. Department of Energy (DOE) [DE-SC0010331] Funding Source: U.S. Department of Energy (DOE)
- STFC [ST/K004719/1, ST/N000668/1, ST/L00481X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/N000668/1] Funding Source: researchfish
- UK Space Agency [ST/N00180X/1] Funding Source: researchfish
- Grants-in-Aid for Scientific Research [15K21733] Funding Source: KAKEN
- Direct For Mathematical & Physical Scien
- Division Of Astronomical Sciences [1516997] Funding Source: National Science Foundation
We present cosmological results from the final galaxy clustering data set of the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. Our combined galaxy sample comprises 1.2 million massive galaxies over an effective area of 9329 deg(2) and volume of 18.7 Gpc(3), divided into three partially overlapping redshift slices centred at effective redshifts 0.38, 0.51 and 0.61. We measure the angular diameter distance DM and Hubble parameter H from the baryon acoustic oscillation (BAO) method, in combination with a cosmic microwave background prior on the sound horizon scale, after applying reconstruction to reduce non-linear effects on the BAO feature. Using the anisotropic clustering of the pre-reconstruction density field, we measure the product DMH from the Alcock-Paczynski (AP) effect and the growth of structure, quantified by f sigma(8(z)), from redshift-space distortions (RSD). We combine individual measurements presented in seven companion papers into a set of consensus values and likelihoods, obtaining constraints that are tighter and more robust than those from any one method; in particular, the AP measurement from sub-BAO scales sharpens constraints from post-reconstruction BAOs by breaking degeneracy between D-M and H. Combined with Planck 2016 cosmic microwave background measurements, our distance scale measurements simultaneously imply curvature Omega(K) = 0.0003 +/- 0.0026 and a dark energy equation-of-state parameter w = -1.01 +/- 0.06, in strong affirmation of the spatially flat cold dark matter (CDM) model with a cosmological constant (Lambda CDM). Our RSD measurements of f sigma(8), at 6 per cent precision, are similarly consistent with this model. When combined with supernova Ia data, we find H-0 = 67.3 +/- 1.0 km s(-1) Mpc(-1) even for our most general dark energy model, in tension with some direct measurements. Adding extra relativistic species as a degree of freedom loosens the constraint only slightly, to H-0 = 67.8 +/- 1.2 km s(-1) Mpc(-1). Assuming flat Lambda CDM, we find Omega(m) = 0.310 +/- 0.005 and H-0 = 67.6 +/- 0.5 km s(-1) Mpc(-1), and we find a 95 per cent upper limit of 0.16 eV c(-2) on the neutrino mass sum.
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