The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies
Date
21/08/2016Author
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Abstract
[abridged] We present an anisotropic analysis of the baryonic acoustic oscillation (BAO) scale in the twelfth and final data release of the Baryonic Oscillation Spectroscopic Survey (BOSS). We independently analyse the LOWZ and CMASS galaxy samples: the LOWZ sample contains contains 361\,762 galaxies with an effective redshift of $z_{\rm LOWZ}=0.32$, and the CMASS sample consists of 777\,202 galaxies with an effective redshift of $z_{\rm CMASS}=0.57$. We extract the BAO peak position from the monopole power spectrum moment, $\alpha_0$, and from the $\mu^2$ moment, $\alpha_2$. We report $H(z_{\rm LOWZ})r_s(z_d)=(11.64\pm0.62)\cdot10^3\,{\rm km}s^{-1}$ and $D_A(z_{\rm LOWZ})/r_s(z_d)=6.85\pm0.17$ with a cross-correlation coefficient of $r_{HD_A}=0.42$, for the LOWZ sample; and $H(z_{\rm CMASS})r_s(z_d)=(14.56\pm0.38)\cdot10^3\,{\rm km}s^{-1}$ and $D_A(z_{\rm CMASS})/r_s(z_d)=9.42\pm0.13$ with a cross-correlation coefficient of $r_{HD_A}=0.51$, for the CMASS sample. We combine these results with the measurements of the BAO peak position in the monopole and quadrupole correlation function of the same dataset \citep[][companion paper]{Cuestaetal2015} and report the consensus values: $H(z_{\rm LOWZ})r_s(z_d)=(11.64\pm0.70)\cdot10^3\,{\rm km}s^{-1}$ and $D_A(z_{\rm LOWZ})/r_s(z_d)=6.76\pm0.15$ with $r_{HD_A}=0.35$ for the LOWZ sample; and $H(z_{\rm CMASS})r_s(z_d)=(14.66\pm0.42)\cdot10^3\,{\rm km}s^{-1}$ and $D_A(z_{\rm CMASS})/r_s(z_d)=9.47\pm0.13$ with $r_{HD_A}=0.54$ for the CMASS sample.
Citation
Gil-Marín , H , Percival , W J , Cuesta , A J , Brownstein , J R , Chuang , C-H , Ho , S , Kitaura , F-S , Maraston , C , Prada , F , Rodríguez-Torres , S , Ross , A J , Schlegel , D J , Schneider , D P , Thomas , D , Tinker , J L , Tojeiro , R , Vargas Magaña , M & Zhao , G-B 2016 , ' The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey : BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies ' , Monthly Notices of the Royal Astronomical Society , vol. 460 , no. 4 , pp. 4210-4219 . https://doi.org/10.1093/mnras/stw1264
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/stw1264
Description
HGM is grateful for support from the UK Science and Technology Facilities Council through the grant ST/I001204/1. WJP is grateful for support from the UK Science and Technology Facilities Research Council through the grant ST/I001204/1, and the European Research Council through the grant “Darksurvey”, reference 614030. FSK acknowledges the support of the Karl-Schwarzschild Program from the Leibniz Society.Collections
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