4.7 Article

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Cosmological implications of the configuration-space clustering wedges

Journal

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 464, Issue 2, Pages 1640-1658

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/mnras/stw2443

Keywords

cosmological parameters; large-scale structure of Universe

Funding

  1. Trans-regional Collaborative Research Centre 'The Dark Universe' of the German Research Foundation [TR33]
  2. NSF [AST-1109432]
  3. Spanish Ministry of Economy and Competitiveness (MINECO) [SEV-2011-0187, SEV-2015-0548, AYA2013-46886, AYA2014-58308]
  4. Programa de Apoyo a Proyectos de Investigacion e Innovacion Tecnologica (PAPITT) [IA102516]
  5. Alfred P. Sloan Foundation
  6. National Science Foundation
  7. US Department of Energy
  8. University of Arizona
  9. Brazilian Participation Group
  10. Brookhaven National Laboratory
  11. University of Cambridge
  12. Carnegie Mellon University
  13. University of Florida
  14. French Participation Group
  15. German Participation Group
  16. Harvard University
  17. Instituto de Astrofisica de Canarias
  18. Michigan State/Notre Dame/JINA Participation Group
  19. Johns Hopkins University
  20. Lawrence Berkeley National Laboratory
  21. Max Planck Institute for Astrophysics
  22. Max Planck Institute for Extraterrestrial Physics
  23. New Mexico State University
  24. New York University
  25. Ohio State University
  26. Pennsylvania State University
  27. University of Portsmouth
  28. Princeton University
  29. Spanish Participation Group
  30. University of Tokyo
  31. University of Utah
  32. Vanderbilt University
  33. University of Virginia
  34. University of Washington
  35. Yale University
  36. ESA Member States
  37. NASA
  38. Science and Technology Facilities Council [ST/N000668/1] Funding Source: researchfish
  39. UK Space Agency [ST/N00180X/1] Funding Source: researchfish
  40. STFC [ST/N000668/1, ST/K004719/1] Funding Source: UKRI

Ask authors/readers for more resources

We explore the cosmological implications of anisotropic clustering measurements in configuration space of the final galaxy samples from Data Release 12 of the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. We implement a new detailed modelling of the effects of non-linearities, bias and redshift-space distortions that can be used to extract unbiased cosmological information from our measurements for scales s greater than or similar to 20 h(-1) Mpc. We combined the information from Baryon Oscillation Spectroscopic Survey (BOSS) with the latest cosmic microwave background (CMB) observations and Type Ia supernovae samples and found no significant evidence for a deviation from the Lambda cold dark matter (Lambda CDM) cosmological model. In particular, these data sets can constrain the dark energy equation-of-state parameter to w(DE) = -0.996 +/- 0.042 when to be assumed time independent, the curvature of the Universe to Omega(k) = -0.0007 +/- 0.0030 and the sum of the neutrino masses to Sigma m nu < 0.25 eV at 95 per cent confidence levels. We explore the constraints on the growth rate of cosmic structures assuming f(z)=Omega(m)(z)(gamma) and obtain gamma = 0.609 +/- 0.079, in good agreement with the predictions of general relativity of gamma=0.55. We compress the information of our clustering measurements into constraints on the parameter combinations D-V(z)/r(d), F-AP(z) and f sigma(8)(z) at z(eff) = 0.38, 0.51 and 0.61 with their respective covariance matrices and find good agreement with the predictions for these parameters obtained from the best-fitting Lambda CDM model to the CMB data from the Planck satellite. This paper is part of a set that analyses the final galaxy clustering data set from BOSS. The measurements and likelihoods presented here are combined with others by Alam et al. to produce the final cosmological constraints from BOSS.

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