The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12
Abstract
We present distance scale measurements from the baryon acoustic oscillation signal in the CMASS and LOWZ samples from the Data Release 12 of the Baryon Oscillation Spectroscopic Survey (BOSS). The total volume probed is 14.5 Gpc$^3$, a 10% increment from Data Release 11. From an analysis of the spherically averaged correlation function, we infer a distance to $z=0.57$ of $D_V(z)r^{\rm fid}_{\rm d}/r_ {\rm d}=2028\pm19$ Mpc and a distance to $z=0.32$ of $D_V(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1263\pm21$ Mpc assuming a cosmology in which $r^{\rm fid}_{\rm d}=147.10$ Mpc. From the anisotropic analysis, we find an angular diameter distance to $z=0.57$ of $D_{\rm A}(z)r^{\rm fid}_{\rm d}/r_{\rm d}=1401\pm19$ Mpc and a distance to $z=0.32$ of $981\pm20$ Mpc, a 1.4% and 2.0% measurement respectively. The Hubble parameter at $z=0.57$ is $H(z)r_{\rm d}/r^{\rm fid}_{\rm d}=100.3\pm3.4$ km s$^{-1}$ Mpc$^{-1}$ and its value at $z=0.32$ is $79.2\pm5.5$ km s$^{-1}$ Mpc$^{-1}$, a 3.4% and 6.9% measurement respectively. These cosmic distance scale constraints are in excellent agreement with a $\Lambda$CDM model with cosmological parameters released by the recent Planck 2015 results.
Citation
Cuesta , A J , Vargas-Magaña , M , Beutler , F , Bolton , A S , Brownstein , J R , Eisenstein , D J , Gil-Marín , H , Ho , S , McBride , C K , Maraston , C , Padmanabhan , N , Percival , W J , Reid , B A , Ross , A J , Ross , N P , Sánchez , A G , Schlegel , D J , Schneider , D P , Thomas , D , Tinker , J , Tojeiro , R , Verde , L & White , M 2016 , ' The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : Baryon Acoustic Oscillations in the correlation function of LOWZ and CMASS galaxies in Data Release 12 ' , Monthly Notices of the Royal Astronomical Society , vol. 457 , no. 2 , pp. 1770-1785 . https://doi.org/10.1093/mnras/stw066
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
ISSN
0035-8711Type
Journal article
Rights
Copyright ©2016 The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work which was originally published at https://dx.doi.org/10.1093/mnras/stw066
Description
AJC and LV are supported by supported by the European Research Council under the European Community's Seventh Framework Programme FP7-IDEAS-Phys.LSS 240117. Funding for this work was partially provided by the Spanish MINECO under projects AYA2014-58747-P and MDM-2014-0369 of ICCUB (Unidad de Excelencia ‘María de Maeztu’). The Science, Technology and Facilities Council is acknowledged for support through the Survey Cosmology and Astrophysics consolidated grant, ST/I001204/1.Collections
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