Bibcode
Sánchez, A. G.; Scoccimarro, Román; Crocce, Martín; Grieb, Jan Niklas; Salazar-Albornoz, Salvador; Dalla Vecchia, C.; Lippich, Martha; Beutler, Florian; Brownstein, Joel R.; Chuang, Chia-Hsun; Eisenstein, Daniel J.; Kitaura, Francisco-Shu; Olmstead, Matthew D.; Percival, Will J.; Prada, Francisco; Rodríguez-Torres, Sergio; Ross, Ashley J.; Samushia, Lado; Seo, Hee-Jong; Tinker, Jeremy; Tojeiro, Rita; Vargas-Magaña, Mariana; Wang, Yuting; Zhao, Gong-Bo
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 464, Issue 2, p.1640-1658
Advertised on:
1
2017
Citations
169
Refereed citations
159
Description
We explore the cosmological implications of anisotropic clustering
measurements in configuration space of the final galaxy samples from
Data Release 12 of the Sloan Digital Sky Survey III Baryon Oscillation
Spectroscopic Survey. We implement a new detailed modelling of the
effects of non-linearities, bias and redshift-space distortions that can
be used to extract unbiased cosmological information from our
measurements for scales s ≳ 20 h-1 Mpc. We combined the
information from Baryon Oscillation Spectroscopic Survey (BOSS) with the
latest cosmic microwave background (CMB) observations and Type Ia
supernovae samples and found no significant evidence for a deviation
from the Λ cold dark matter (ΛCDM) cosmological model. In
particular, these data sets can constrain the dark energy
equation-of-state parameter to wDE = -0.996 ± 0.042
when to be assumed time independent, the curvature of the Universe to
Ωk = -0.0007 ± 0.0030 and the sum of the
neutrino masses to ∑mν < 0.25 eV at 95 per cent
confidence levels. We explore the constraints on the growth rate of
cosmic structures assuming f(z) =
Ωm(z)γ and obtain γ = 0.609
± 0.079, in good agreement with the predictions of general
relativity of γ = 0.55. We compress the information of our
clustering measurements into constraints on the parameter combinations
DV(z)/rd, FAP(z) and
fσ8(z) at zeff = 0.38, 0.51 and 0.61 with
their respective covariance matrices and find good agreement with the
predictions for these parameters obtained from the best-fitting
ΛCDM model to the CMB data from the Planck satellite. This paper
is part of a set that analyses the final galaxy clustering data set from
BOSS. The measurements and likelihoods presented here are combined with
others by Alam et al. to produce the final cosmological constraints from
BOSS.
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