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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample

Research output: Contribution to journalArticle

  • Lauren Anderson
  • Eric Aubourg
  • Stephen Bailey
  • Dmitry Bizyaev
  • Michael R. Blanton
  • Adam S. Bolton
  • Jonathan V. Brinkmann
  • Joel R. Brownstein
  • Angela Burden
  • Antonio J. Cuesta
  • Luiz Alberto Nicolaci da Costa
  • Kyle S. Dawson
  • Ronald de Putter
  • Daniel J. Eisenstein
  • James E. Gunn
  • Hong Guo
  • Jean-Christophe Hamilton
  • Paul Harding
  • Shirley Ho
  • Klaus Honscheid
  • Eyal A. Kazin
  • D. Kirkby
  • Jean-Paul Kneib
  • Antoine Labatie
  • Craig P. Loomis
  • Robert H. Lupton
  • Elena Malanushenko
  • Viktor Malanushenko
  • Rachel Mandelbaum
  • Marc Manera
  • Cameron K. McBride
  • Kushal Mehta
  • Olga Mena
  • Francesco Montesano
  • Demitri Muna
  • Sebastian E. Nuza
  • Matthew D. Olmstead
  • Daniel J. Oravetz
  • Nikhil Padmanabhan
  • Nathalie Palanque-Delabrouille
  • Kaike Pan
  • John K. Parejko
  • Isabelle Paris
  • Will J. Percival
  • Patrick Petitjean
  • Francisco Prada
  • Beth A. Reid
  • Natalie A. Roe
  • Nicholas P. Ross
  • Ariel G. Sanchez
  • David J. Schlegel
  • Donald P. Schneider
  • Claudia G. Scoccola
  • Hee-Jong Seo
  • Erin S. Sheldon
  • Audrey E. Simmons
  • Ramin A. Skibba
  • Michael A. Strauss
  • Molly E. C. Swanson
  • Jeremy L. Tinker
  • Rita Tojeiro
  • Mariana Vargas Magana
  • Licia Verde
  • Christian Wagner
  • David A. Wake
  • Benjamin A. Weaver
  • David H. Weinberg
  • Martin White
  • Xiaoying Xu
  • Christophe Yeche
  • Idit Zehavi
  • Gong-Bo Zhao
Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264 283 massive galaxies covering 3275 square degrees with an effective redshift z = 0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance CDM cosmological model, this sample covers an effective volume of 2.2 Gpc3, and represents the largest sample of the Universe ever surveyed at this density, ¯n ≈ 3 × 10−4 h −3 Mpc3. We measure the angle-averaged galaxy correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of 5σ in both the correlation function and power spectrum. Combining with the SDSS-II luminous red galaxy sample, the detection significance increases to 6.7σ. Fitting for the position of the acoustic features measures the distance to z = 0.57 relative to the sound horizon DV/rs = 13.67 ± 0.22 at z = 0.57. Assuming a fiducial sound horizon of 153.19 Mpc, which matches cosmic microwave background constraints, this corresponds to a distance DV (z = 0.57) = 2094 ± 34 Mpc. At 1.7 per cent, this is the most precise distance constraint ever obtained from a galaxy survey. We place this result alongside previous BAO measurements in a cosmological distance ladder and find excellent agreement with the current supernova measurements.We use these distance measurements to constrain various cosmological models, finding continuing support for a flat Universe with a cosmological constant.
Original languageEnglish
Pages (from-to)3435-3467
JournalMonthly Notices of the Royal Astronomical Society
Issue number4
Publication statusPublished - 2012


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