HGM is grateful for support from the UK Science and Technology Facilities Council through the grant ST/I001204/1. WJP is grateful for support from the UK Science and Technology Facilities Research Council through the grant ST/I001204/1, and the European Research Council through the grant ‘Darksurvey’. FSK acknowledges the support of the Karl–Schwarzschild Program from the Leibniz Society. FSK, SRT, CC, and FP acknowledge support from the Spanish MICINNs Consolider-Ingenio 2010 Programme under grant MultiDark CSD2009-00064, MINECO Centro de Excelencia Severo Ochoa Programme under grant SEV-2012-0249, and grant AYA2014-60641-C2- 1-P. The massive production of all MultiDark Patchy BOSS DR12 mocks has been performed at the BSC Marenostrum supercomputer, the Hydra cluster at the Instituto de Fisica Teorica UAM/CSIC and NERSC at the Lawrence Berkeley National Laboratory. We thank Shun Saito and Florian Beutler for comments and helpful discussions. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the US Department of Energy Office of Science. The SDSS-III web site is http://www.sdss3.org/. SDSS-III is managed by the Astrophysical Research Consortium for the Participating Institutions of the SDSS-III Collaboration including the University of Arizona, the Brazilian Participation Group, Brookhaven National Laboratory, University of Cambridge, Carnegie Mellon University, University of Florida, the French Participation Group, the German Participation Group, Harvard University, the Instituto de Astrofisica de Canarias, the 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, the Spanish Participation Group, University of Tokyo, University of Utah, Vanderbilt University, University of Virginia, University of Washington, and Yale University. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231.

We measure and analyse the clustering of theBaryon Oscillation Spectroscopic Survey (BOSS) relative to the line of sight (LOS), for LOWZ and CMASS galaxy samples drawn from the final Data Release 12. The LOWZ sample contains 361 762 galaxies with an effective redshift of z = 0.32, and the CMASS sample 777 202 galaxies with an effective redshift of z = 0.57. From the power spectrum monopole and quadrupole moments around the LOS, we measure the growth of structure parameter f times the amplitude of dark matter density fluctuations σ8 by modelling the redshift-space distortion signal. When the geometrical Alcock-Paczynski effect is also constrained from the same data, we find joint constraints on fσ8, the product of the Hubble constant and the comoving sound horizon at the baryondrag epoch H(z)r(z), and the angular distance parameter divided by the sound horizon D(z)/r(z). We find f(z)σ8(z) = 0.394 ± 0.062, D(z)/r(zd) = 6.35 ± 0.19, H(z)r(zd) = (11.41 ± 0.56) 10 km s for the LOWZ sample, and f(z)σ8(z) = 0.444 ± 0.038, DA(z)/rs(z) = 9.42 ± 0.15, H(z)r(zd) = (13.92 ± 0.44) 10 km s for the CMASS sample. We find general agreement with previous BOSS DR11 measurements. Assuming the Hubble parameter and angular distance parameter are fixed at fiducial λcold dark matter values, we find f(z)σ8(z)=0.485 ± 0.044 and f(z)σ8(z)=0.436 ± 0.022 for the LOWZ and CMASS samples, respectively. © 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.

With funding from the Spanish government through the "Severo Ochoa Centre of Excellence" accreditation (SEV-2012-0249).

Peer reviewed