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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : baryon acoustic oscillations in the Data Releases 10 and 11 Galaxy samples

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Date
11/06/2014
Author
Anderson, Lauren
Aubourg, Éric
Bailey, Stephen
Beutler, Florian
Bhardwaj, Vaishali
Blanton, Michael
Bolton, Adam S.
Brinkmann, J.
Brownstein, Joel R.
Burden, Angela
Chuang, Chia-Hsun
Cuesta, Antonio J.
Dawson, Kyle S.
Eisenstein, Daniel J.
Escoffier, Stephanie
Gunn, James E.
Guo, Hong
Ho, Shirley
Honscheid, Klaus
Howlett, Cullan
Kirkby, David
Lupton, Robert H.
Manera, Marc
Maraston, Claudia
McBride, Cameron K.
Mena, Olga
Montesano, Francesco
Nichol, Robert C.
Nuza, Sebastián E.
Olmstead, Matthew D.
Padmanabhan, Nikhil
Palanque-Delabrouille, Nathalie
Parejko, John
Percival, Will J.
Petitjean, Patrick
Prada, Francisco
Price-Whelan, Adrian M.
Reid, Beth
Roe, Natalie A.
Ross, Ashley J.
Ross, Nicholas P.
Sabiu, Cristiano G.
Saito, Shun
Samushia, Lado
Sánchez, Ariel G.
Schlegel, David J.
Schneider, Donald P.
Scoccola, Claudia G.
Seo, Hee-Jong
Skibba, Ramin A.
Strauss, Michael A.
Swanson, Molly E. C.
Thomas, Daniel
Tinker, Jeremy L.
Tojeiro, Rita
Magaña, Mariana Vargas
Verde, Licia
Wake, David A.
Weaver, Benjamin A.
Weinberg, David H.
White, Martin
Xu, Xiaoying
Yèche, Christophe
Zehavi, Idit
Zhao, Gong-Bo
Keywords
Cosmological parameters
Cosmology: observations
Dark energy
Distance scale
Large-scale structure of Universe
QB Astronomy
QC Physics
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Abstract
We present a one per cent measurement of the cosmic distance scale from the detections of the baryon acoustic oscillations (BAO) in the clustering of galaxies from the Baryon Oscillation Spectroscopic Survey, which is part of the Sloan Digital Sky Survey III. Our results come from the Data Release 11 (DR11) sample, containing nearly one million galaxies and covering approximately 8500 square degrees and the redshift range 0.2 < z < 0.7. We also compare these results with those from the publicly released DR9 and DR10 samples. Assuming a concordance Λ cold dark matter (ΛCDM) cosmological model, the DR11 sample covers a volume of 13 Gpc3 and is the largest region of the Universe ever surveyed at this density. We measure the correlation function and power spectrum, including density-field reconstruction of the BAO feature. The acoustic features are detected at a significance of over 7σ in both the correlation function and power spectrum. Fitting for the position of the acoustic features measures the distance relative to the sound horizon at the drag epoch, rd, which has a value of rd,fid = 149.28 Mpc in our fiducial cosmology. We find DV = (1264 ± 25 Mpc)(rd/rd,fid) at z = 0.32 and DV = (2056 ± 20 Mpc)(rd/rd,fid) at z = 0.57. At 1.0 per cent, this latter measure is the most precise distance constraint ever obtained from a galaxy survey. Separating the clustering along and transverse to the line of sight yields measurements at z = 0.57 of DA = (1421 ± 20 Mpc)(rd/rd,fid) and H = (96.8 ± 3.4 km s−1 Mpc−1)(rd,fid/rd). Our measurements of the distance scale are in good agreement with previous BAO measurements and with the predictions from cosmic microwave background data for a spatially flat CDM model with a cosmological constant.
Citation
Anderson , L , Aubourg , É , Bailey , S , Beutler , F , Bhardwaj , V , Blanton , M , Bolton , A S , Brinkmann , J , Brownstein , J R , Burden , A , Chuang , C-H , Cuesta , A J , Dawson , K S , Eisenstein , D J , Escoffier , S , Gunn , J E , Guo , H , Ho , S , Honscheid , K , Howlett , C , Kirkby , D , Lupton , R H , Manera , M , Maraston , C , McBride , C K , Mena , O , Montesano , F , Nichol , R C , Nuza , S E , Olmstead , M D , Padmanabhan , N , Palanque-Delabrouille , N , Parejko , J , Percival , W J , Petitjean , P , Prada , F , Price-Whelan , A M , Reid , B , Roe , N A , Ross , A J , Ross , N P , Sabiu , C G , Saito , S , Samushia , L , Sánchez , A G , Schlegel , D J , Schneider , D P , Scoccola , C G , Seo , H-J , Skibba , R A , Strauss , M A , Swanson , M E C , Thomas , D , Tinker , J L , Tojeiro , R , Magaña , M V , Verde , L , Wake , D A , Weaver , B A , Weinberg , D H , White , M , Xu , X , Yèche , C , Zehavi , I & Zhao , G-B 2014 , ' The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : baryon acoustic oscillations in the Data Releases 10 and 11 Galaxy samples ' , Monthly Notices of the Royal Astronomical Society , vol. 441 , no. 1 , pp. 24-62 . https://doi.org/10.1093/mnras/stu523
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stu523
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.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/5876

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