TY - JOUR

T1 - The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey

T2 - cosmological implications of the Fourier space wedges of the final sample

AU - Grieb, Jan Niklas

AU - Sánchez, Ariel G.

AU - Salazar-Albornoz, Salvador

AU - Scoccimarro, Román

AU - Crocce, Martín

AU - Vecchia, Claudio Dalla

AU - Montesano, Francesco

AU - Gil-Marín, Héctor

AU - Ross, Ashley J.

AU - Beutler, Florian

AU - Rodríguez-Torres, Sergio

AU - Chuang, Chia-Hsun

AU - Prada, Francisco

AU - Kitaura, Francisco-Shu

AU - Cuesta, Antonio J.

AU - Eisenstein, Daniel J.

AU - Percival, Will J.

AU - Vargas-Magana, Mariana

AU - Tinker, Jeremy L.

AU - Tojeiro, Rita

AU - Brownstein, Joel R.

AU - Maraston, Claudia

AU - Nichol, Robert C.

AU - Olmstead, Matthew D.

AU - Samushia, Lado

AU - Seo, Hee-Jong

AU - Streblyanska, Alina

AU - Zhao, Gong-bo

N1 - 23 pages, 16 figures in the main text, appendix of 6 pages and 5 figures; revision submitted to MNRAS. The data used in this analysis is publicly available at https://www.sdss3.org/science/boss_publications.php

PY - 2017/1/4

Y1 - 2017/1/4

N2 - We extract cosmological information from the anisotropic power spectrum measurements from the recently completed Baryon Oscillation Spectroscopic Survey (BOSS), extending the concept of clustering wedges to Fourier space. Making use of new fast-Fourier-transformation-based estimators, we measure the power-spectrum clustering wedges of the BOSS sample by filtering out the information of Legendre multipoles ℓ > 4. Our modelling of these measurements is based on novel approaches to describe non-linear evolution, bias, and redshift-space distortions, which we test using synthetic catalogues based on large-volume N-body simulations. We are able to include smaller scales than in previous analyses, resulting in tighter cosmological constraints. Using three overlapping redshift bins, we measure the angular-diameter distance, the Hubble parameter, and the cosmic growth rate, and explore the cosmological implications of our full-shape clustering measurements in combination with cosmic microwave background and Type Ia supernova data. Assuming a ΛCDM cosmology, we constrain the matter density to ΩM = 0.311 -0.010 +0.009 and the Hubble parameter to Ho = 67.6 -0.6 +0.7 km s-1 Mpc-1, at a confidence level of 68 per cent. We also allow for non-standard dark energy models and modifications of the growth rate, finding good agreement with the ΛCDM paradigm. For example, we constrain the equation-of-state parameter to w = -1.019 -0.039 +0.048. This paper is part of a set that analyses the final galaxy clustering dataset from BOSS. The measurements and likelihoods presented here are combined with others in Alam et al. 2016 to produce the final cosmological constraints from BOSS.

AB - We extract cosmological information from the anisotropic power spectrum measurements from the recently completed Baryon Oscillation Spectroscopic Survey (BOSS), extending the concept of clustering wedges to Fourier space. Making use of new fast-Fourier-transformation-based estimators, we measure the power-spectrum clustering wedges of the BOSS sample by filtering out the information of Legendre multipoles ℓ > 4. Our modelling of these measurements is based on novel approaches to describe non-linear evolution, bias, and redshift-space distortions, which we test using synthetic catalogues based on large-volume N-body simulations. We are able to include smaller scales than in previous analyses, resulting in tighter cosmological constraints. Using three overlapping redshift bins, we measure the angular-diameter distance, the Hubble parameter, and the cosmic growth rate, and explore the cosmological implications of our full-shape clustering measurements in combination with cosmic microwave background and Type Ia supernova data. Assuming a ΛCDM cosmology, we constrain the matter density to ΩM = 0.311 -0.010 +0.009 and the Hubble parameter to Ho = 67.6 -0.6 +0.7 km s-1 Mpc-1, at a confidence level of 68 per cent. We also allow for non-standard dark energy models and modifications of the growth rate, finding good agreement with the ΛCDM paradigm. For example, we constrain the equation-of-state parameter to w = -1.019 -0.039 +0.048. This paper is part of a set that analyses the final galaxy clustering dataset from BOSS. The measurements and likelihoods presented here are combined with others in Alam et al. 2016 to produce the final cosmological constraints from BOSS.

KW - astro-ph.CO

KW - cosmological parameters

KW - cosmology: observations

KW - dark energy

KW - large-scale structure of Universe

U2 - 10.1093/mnras/stw3384

DO - 10.1093/mnras/stw3384

M3 - Article

VL - 467

SP - 2085

EP - 2112

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 2

ER -