The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: BAO measurement from the LOS-dependent power spectrum of DR12 BOSS galaxies

Autor: Héctor Gil-Marín, Will J. Percival, Antonio J. Cuesta, Joel R. Brownstein, Chia-Hsun Chuang, Shirley Ho, Francisco-Shu Kitaura, Claudia Maraston, Francisco Prada, Sergio Rodríguez-Torres, Ashley J. Ross, David J. Schlegel, Donald P. Schneider, Daniel Thomas, Jeremy L. Tinker, Rita Tojeiro, Mariana Vargas Magaña, Gong-Bo Zhao
Přispěvatelé: Universitat de Barcelona, University of St Andrews. School of Physics and Astronomy
Rok vydání: 2015
Předmět:
Zdroj: Gil-Marín, H; Percival, WJ; Cuesta, AJ; Brownstein, JR; Chuang, CH; Ho, S; et al.(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, 460(4), 4210-4219. doi: 10.1093/mnras/stw1264. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/88k993xt
Monthly Notices of the Royal Astronomical Society, vol 460, iss 4
Recercat. Dipósit de la Recerca de Catalunya
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Dipòsit Digital de la UB
Universidad de Barcelona
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, Magaña, M V & 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
DOI: 10.48550/arxiv.1509.06373
Popis: [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 $z_{\rm LOWZ}=0.32$; 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, $\alpha_2$, where $\mu$ is the cosine of the angle to the line-of-sight. The $\mu^2$-moment provides equivalent information to that available in the quadrupole but is simpler to analyse. After applying a reconstruction algorithm to reduce the BAO suppression by bulk motions, we measure the BAO peak position in the monopole and $\mu^2$-moment, which are related to radial and angular shifts in scale. We report $H(z_{\rm LOWZ})r_s(z_d)=(11.60\pm0.60)\cdot10^3 {\rm km}s^{-1}$ and $D_A(z_{\rm LOWZ})/r_s(z_d)=6.66\pm0.16$ with a cross-correlation coefficient of $r_{HD_A}=0.41$, for the LOWZ sample; and $H(z_{\rm CMASS})r_s(z_d)=(14.56\pm0.37)\cdot10^3 {\rm km}s^{-1}$ and $D_A(z_{\rm CMASS})/r_s(z_d)=9.42\pm0.13$ with a cross-correlation coefficient of $r_{HD_A}=0.47$, 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: $H(z_{\rm LOWZ})r_s(z_d)=(11.63\pm0.69)\cdot10^3 {\rm km}s^{-1}$ and $D_A(z_{\rm LOWZ})/r_s(z_d)=6.67\pm0.15$ with $r_{HD_A}=0.35$ for the LOWZ sample; $H(z_{\rm CMASS})r_s(z_d)=(14.67\pm0.42)\cdot10^3 {\rm km}s^{-1}$ and $D_A(z_{\rm CMASS})/r_s(z_d)=9.47\pm0.12$ with $r_{HD_A}=0.52$ for the CMASS sample.
Comment: 10 pages, 3 figures, Accepted for publication in MNRAS
Databáze: OpenAIRE
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