The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
Sep 21, 201516 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 457 (2016) 2, 1770-1785
- Published: Apr 1, 2016
e-Print:
- 1509.06371 [astro-ph.CO]
DOI:
Experiments:
View in:
Citations per year
Abstract: (Oxford University Press)
We present distance scale measurements from the baryon acoustic oscillation signal in the constant stellar mass and low-redshift sample samples from the Data Release 12 of the Baryon Oscillation Spectroscopic Survey. The total volume probed is 14.5 Gpc^3, a 10 per cent increment from Data Release 11. From an analysis of the spherically averaged correlation function, we infer a distance to z = 0.57 of Mpc and a distance to z = 0.32 of Mpc assuming a cosmology in which Mpc. From the anisotropic analysis, we find an angular diameter distance to z = 0.57 of Mpc and a distance to z = 0.32 of 981 ± 20 Mpc, a 1.5 and 2.0 per cent measurement, respectively. The Hubble parameter at z = 0.57 is km s^−1 Mpc^−1 and its value at z = 0.32 is 79.2 ± 5.6 km s^−1 Mpc^−1, a 3.7 and 7.1 per cent measurement, respectively. These cosmic distance scale constraints are in excellent agreement with a Λ cold dark matter model with cosmological parameters released by the recent Planck 2015 results.Note:
- 18 pages, 10 figures, 13 tables. Matches version accepted for publication in MNRAS. Here we account for a systematic error budget not included in the previous version of this manuscript
- cosmology: observations
- distance scale
- large-scale structure of Universe
References(72)
Figures(31)