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Title: The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies

Here, we present an anisotropic analysis of the baryon acoustic oscillation (BAO) scale in the twelfth and final data release of the Baryon Oscillation Spectroscopic Survey (BOSS). We independently analyse the LOWZ and CMASS galaxy samples: the LOWZ sample contains 361 762 galaxies with an effective redshift of zLOWZ = 0.32; the CMASS sample consists of 777 202 galaxies with an effective redshift of zCMASS = 0.57. We extract the BAO peak position from the monopole power-spectrum moment, α0, and from the μ 2 moment, α2, where μ is the cosine of the angle to the line of sight. The μ 2-moment provides equivalent information to that available in the quadrupole but is simpler to analyse. After applying a reconstruction algorithm to reduce the BAO suppression by bulk motions, we measure the BAO peak position in the monopole and μ 2-moment, which are related to radial and angular shifts in scale. We report H(zLOWZ)r s(zd) = (11.60 ± 0.60) × 10 3 km s -1 and D A(zLOWZ)/r s(zd) = 6.66 ± 0.16 with a cross-correlation coefficient of rHD A = 0.41, for the LOWZ sample; and H(zCMASS)r s(zd) = (14.56 ± 0.37) × 10 3 km s -1 andmore » D A(zCMASS)/r s(z d) = 9.42 ± 0.13 with a cross-correlation coefficient of rHD A = 0.47, for the CMASS sample.« less
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [1] ;  [7] ;  [8] ;  [9] ;  [10] ;  [11] ;  [1] ;  [12] ;  [13] ;  [14] ;  [15]
  1. Univ. of Portsmouth, Portsmouth (United Kingdom)
  2. Univ. de Barcelona, Barcelona (Spain)
  3. Univ. of Utah, Salt Lake City, UT (United States)
  4. Univ. Autonoma de Madrid, Madrid (Spain)
  5. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  6. Leibniz-Institut fur Astrophysik (AIP), Potsdam (Germany)
  7. Univ. Autonoma de Madrid, Madrid (Spain); Instituto de Astrofisica de Andalucia (CSIC), Granada (Spain)
  8. Univ. Autonoma de Madrid, Madrid (Spain); Campus of International Excellence UAM+CSIC, Madrid (Spain)
  9. The Ohio State Univ., Columbus, OH (United States)
  10. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  11. The Pennsylvania State Univ., University Park, PA (United States)
  12. New York Univ., New York, NY (United States)
  13. School of Physics and Astronomy, St. Andrews (United Kingdom)
  14. Univ. Nacional Autonoma de Mexico (Mexico)
  15. Univ. of Portsmouth, Portsmouth (United Kingdom); Chinese Academy of Science, Beijing (People's Republic of China)
Publication Date:
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 460; Journal Issue: 4; Journal ID: ISSN 0035-8711
Royal Astronomical Society
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
79 ASTRONOMY AND ASTROPHYSICS; galaxies: haloes; cosmological parameters; cosmology: theory; large-scale structure of Universe
OSTI Identifier: