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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : cosmological implications of the full shape of the clustering wedges in the data release 10 and 11 galaxy samples

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Date
21/05/2014
Author
Sánchez, Ariel G.
Montesano, Francesco
Kazin, Eyal A.
Aubourg, Eric
Beutler, Florian
Brinkmann, Jon
Brownstein, Joel R.
Cuesta, Antonio J.
Dawson, Kyle S.
Eisenstein, Daniel J.
Ho, Shirley
Honscheid, Klaus
Manera, Marc
Maraston, Claudia
McBride, Cameron K.
Percival, Will J.
Ross, Ashley J.
Samushia, Lado
Schlegel, David J.
Schneider, Donald P.
Skibba, Ramin
Thomas, Daniel
Tinker, Jeremy L.
Tojeiro, Rita
Wake, David A.
Weaver, Benjamin A.
White, Martin
Zehavi, Idit
Keywords
cosmological parameters
large-scale structure of Universe
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Abstract
We explore the cosmological implications of the angle-averaged correlation function, ξ(s), and the clustering wedges, ξ⊥(s) and ξ∥(s), of the LOWZ and CMASS galaxy samples from Data Releases 10 and 11 of the Sloan Digital Sky Survey III (SDSS-III) Baryon Oscillation Spectroscopic Survey. Our results show no significant evidence for a deviation from the standard Λ cold dark matter model. The combination of the information from our clustering measurements with recent data from the cosmic microwave background is sufficient to constrain the curvature of the Universe to Ωk = 0.0010 ± 0.0029, the total neutrino mass to ∑mν < 0.23 eV (95 per cent confidence level), the effective number of relativistic species to Neff = 3.31 ± 0.27 and the dark energy equation of state to wDE = −1.051 ± 0.076. These limits are further improved by adding information from Type Ia supernovae and baryon acoustic oscillations from other samples. In particular, this data set combination is completely consistent with a time-independent dark energy equation of state, in which case we find wDE = −1.024 ± 0.052. We explore the constraints on the growth rate of cosmic structures assuming f(z) = Ωm(z)γ and obtain γ = 0.69 ± 0.15, consistent with the predictions of general relativity of γ = 0.55.
Citation
Sánchez , A G , Montesano , F , Kazin , E A , Aubourg , E , Beutler , F , Brinkmann , J , Brownstein , J R , Cuesta , A J , Dawson , K S , Eisenstein , D J , Ho , S , Honscheid , K , Manera , M , Maraston , C , McBride , C K , Percival , W J , Ross , A J , Samushia , L , Schlegel , D J , Schneider , D P , Skibba , R , Thomas , D , Tinker , J L , Tojeiro , R , Wake , D A , Weaver , B A , White , M & Zehavi , I 2014 , ' The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : cosmological implications of the full shape of the clustering wedges in the data release 10 and 11 galaxy samples ' , Monthly Notices of the Royal Astronomical Society , vol. 440 , no. 3 , pp. 2692-2713 . https://doi.org/10.1093/mnras/stu342
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stu342
ISSN
0035-8711
Type
Journal article
Rights
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society, © 2014 The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/5881

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