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http://hdl.handle.net/2445/119730
Title: | The Clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: observational systematics and baryon acoustic oscillations in the correlation function |
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 A. Brownstein, Joel R. Dawson, Kyle S. Eisenstein, Daniel J. Ho, Shirley Kitaura, Francisco-Shu Nichol, Robert C. Olmstead, Matthew D. O Prada, Francisco Rodríguez Torres, Sergio A. Saito, Shun Salazar-Albornoz, Salvador Schneider, Donald P. Thomas, Daniel Tinker, Jeremy L. Tojeiro, Rita Wang, Yuting White, Martin Zhao, Gong-Bo |
Keywords: | Cúmuls de galàxies Espectroscòpia Clusters of galaxies Spectrum analysis |
Issue Date: | 1-Jan-2017 |
Publisher: | Royal Astronomical Society |
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. |
Note: | Reproducció del document publicat a: https://doi.org/10.1093/mnras/stw2372 |
It is part of: | Monthly Notices of the Royal Astronomical Society, 2017, vol. 464, num. 1, p. 1168-1191 |
URI: | http://hdl.handle.net/2445/119730 |
Related resource: | https://doi.org/10.1093/mnras/stw2372 |
ISSN: | 0035-8711 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Publicacions de projectes de recerca finançats per la UE |
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667015.pdf | 2.28 MB | Adobe PDF | View/Open |
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