Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 464, Issue 3, Pages 3409-3430Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stw2373
Keywords
gravitation; surveys; cosmological parameters; cosmology: observations; dark energy; large-scale structure of Universe
Categories
Funding
- UK Space Agency [ST/N00180X/1]
- Alfred P. Sloan Foundation
- National Science Foundation
- US Department of Energy Office of Science
- University of Arizona
- Brazilian Participation Group
- Brookhaven National Laboratory
- 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
- Office of Science of the US Department of Energy [DE-AC02-05CH11231]
- US Department of Energy, Office of Science, Office of High Energy Physics [DE-SC0014329]
- Spanish MICINNs Consolider-Ingenio Programme [MultiDark CSD2009-00064]
- MINECO Centro de Excelencia Severo Ochoa Programme [SEV-2012-0249, AYA2014-60641-C2-1-P]
- Grants-in-Aid for Scientific Research [15K21733] Funding Source: KAKEN
- Science and Technology Facilities Council [ST/N000668/1] Funding Source: researchfish
- UK Space Agency [ST/N00180X/1] Funding Source: researchfish
- STFC [ST/N000668/1, ST/K004719/1, ST/L00481X/1] Funding Source: UKRI
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We analyse the baryon acoustic oscillation (BAO) signal of the final Baryon Oscillation Spectroscopic Survey (BOSS) data release (DR12). Our analysis is performed in the Fourier space, using the power spectrum monopole and quadrupole. The data set includes 1198 006 galaxies over the redshift range 0.2 < z < 0.75. We divide this data set into three (overlapping) redshift bins with the effective redshifts z(eff) = 0.38, 0.51 and 0.61. We demonstrate the reliability of our analysis pipeline using N-body simulations as well as similar to 1000 MultiDark-Patchy mock catalogues that mimic the BOSS-DR12 target selection. We apply density field reconstruction to enhance the BAO signal-to-noise ratio. By including the power spectrum quadrupole we can separate the line of sight and angular modes, which allows us to constrain the angular diameter distance D-A(z) and the Hubble parameter H(z) separately. We obtain two independent 1.6 and 1.5 per cent constraints on D-A(z) and 2.9 and 2.3 per cent constraints on H(z) for the low (z(eff) = 0.38) and high (z(eff) = 0.61) redshift bin, respectively. We obtain two independent 1 and 0.9 per cent constraints on the angular averaged distance D-V(z), when ignoring the Alcock-Paczynski effect. The detection significance of the BAO signal is of the order of 8 sigma (post-reconstruction) for each of the three redshift bins. Our results are in good agreement with the Planck prediction within Lambda cold dark matter. 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 in Alam et al. to produce the final cosmological constraints from BOSS.
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