Search Results for author: Sergio Rodriguez-Torres

Found 4 papers, 3 papers with code

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: a tomographic analysis of structure growth and expansion rate from anisotropic galaxy clustering

1 code implementation15 Sep 2017 Yuting Wang, Gong-Bo Zhao, Chia-Hsun Chuang, Marcos Pellejero-Ibanez, Cheng Zhao, Francisco-Shu Kitaura, Sergio Rodriguez-Torres

In order to extract the redshift information of anisotropic galaxy clustering, we analyse this data set in nine overlapping redshift slices in configuration space and perform the joint constraints on the parameters $(D_V, F_{\mathrm{AP}}, f\sigma_8)$ using the correlation function multipoles.

Cosmology and Nongalactic Astrophysics

The Effect of Fiber Collisions on the Galaxy Power Spectrum Multipole

1 code implementation6 Sep 2016 ChangHoon Hahn, Roman Scoccimarro, Michael R. Blanton, Jeremy L. Tinker, Sergio Rodriguez-Torres

Using simulated mock catalogs, we demonstrate that fiber collisions have a significant impact on the power spectrum, $P(k)$, monopole and quadrupole that exceeds sample variance at scales smaller than $k\sim0. 1~h/Mpc$.

Cosmology and Nongalactic Astrophysics

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: tomographic BAO analysis of DR12 combined sample in configuration space

2 code implementations11 Jul 2016 Yuting Wang, Gong-Bo Zhao, Chia-Hsun Chuang, Ashley J. Ross, Will J. Percival, Héctor Gil-Marín, Antonio J. Cuesta, Francisco-Shu Kitaura, Sergio Rodriguez-Torres, Joel R. Brownstein, Daniel J. Eisenstein, Shirley Ho, Jean-Paul Kneib, Matt Olmstead, Francisco Prada, Graziano Rossi, Ariel G. Sánchez, Salvador Salazar-Albornoz, Daniel Thomas, Jeremy Tinker, Rita Tojeiro, Mariana Vargas-Magaña, Fangzhou Zhu

Splitting the sample into multiple overlapping redshift slices to extract the redshift information of galaxy clustering, we obtain a measurement of $D_A(z)/r_d$ and $H(z)r_d$ at nine effective redshifts with the full covariance matrix calibrated using MultiDark-Patchy mock catalogues.

Cosmology and Nongalactic Astrophysics

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