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The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey : observational systematics and baryon acoustic oscillations in the correlation function

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Date
01/2017
Author
Ross, Ashley J.
Beutler, Florian
Chuang, Chia-Hsun
Pellejero-Ibanez, Marcos
Seo, Hee-Jong
Vargas-Magaña, Mariana
Cuesta, Antonio J.
Percival, Will J.
Burden, Angela
Sánchez, Ariel G.
Grieb, Jan Niklas
Reid, Beth
Brownstein, Joel R.
Dawson, Kyle S.
Eisenstein, Daniel J.
Ho, Shirley
Kitaura, Francisco-Shu
Nichol, Robert C.
Olmstead, Matthew D.
Prada, Francisco
Rodríguez-Torres, Sergio A.
Saito, Shun
Salazar-Albornoz, Salvador
Schneider, Donald P.
Thomas, Daniel
Tinker, Jeremy
Tojeiro, Rita
Wang, Yuting
White, Martin
Zhao, Gong-bo
Keywords
Cosmology: observations
Large-scale structure of Universe
QB Astronomy
QC Physics
DAS
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Abstract
We present baryon acoustic oscillation (BAO) scale measurements determined from the clustering of 1.2 million massive galaxies with redshifts 0.2 <z <0.75 distributed over 9300 deg2, as quantified by their redshift-space correlation function. In order to facilitate these measurements, we define, describe, and motivate the selection function for galaxies in the final data release (DR12) of the SDSS III Baryon Oscillation Spectroscopic Survey (BOSS). This includes the observational footprint, masks for image quality and Galactic extinction, and weights to account for density relationships intrinsic to the imaging and spectroscopic portions of the survey. We simulate the observed systematic trends in mock galaxy samples and demonstrate that they impart no bias on BAO scale measurements and have a minor impact on the recovered statistical uncertainty. We measure transverse and radial BAO distance measurements in 0.2 <z <0.5, 0.5 <z <0.75,and (overlapping) 0.4 <z <0.6 redshift bins. In each redshift bin, we obtain a precision that is 2.7 per cent or better on the radial distance and 1.6 per cent or better on the transverse distance. The combination of the redshift bins represents 1.8 per cent precision on the radial distance and 1.1 per cent precision on the transverse distance. 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 in Alam et al. to produce the final cosmological constraints from BOSS.
Citation
Ross , A J , Beutler , F , Chuang , C-H , Pellejero-Ibanez , M , Seo , H-J , Vargas-Magaña , M , Cuesta , A J , Percival , W J , Burden , A , Sánchez , A G , Grieb , J N , Reid , B , Brownstein , J R , Dawson , K S , Eisenstein , D J , Ho , S , Kitaura , F-S , Nichol , R C , Olmstead , M D , Prada , F , Rodríguez-Torres , S A , Saito , S , Salazar-Albornoz , S , Schneider , D P , Thomas , D , Tinker , J , Tojeiro , R , Wang , Y , White , M & Zhao , G 2017 , ' The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey : observational systematics and baryon acoustic oscillations in the correlation function ' , Monthly Notices of the Royal Astronomical Society , vol. 464 , no. 1 , pp. 1168-1191 . https://doi.org/10.1093/mnras/stw2372
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stw2372
ISSN
0035-8711
Type
Journal article
Rights
© 2016, he Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at academic.oup.com/mnras / https://doi.org/10.1093/mnras/stw2372
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  • University of St Andrews Research
URL
https://arxiv.org/abs/1607.03145v2
http://adsabs.harvard.edu/abs/2017MNRAS.464.1168R
URI
http://hdl.handle.net/10023/10528

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