2018/06/30 by Jinglan Zheng, Gong-Bo Zhao, Jian Li +4
Physics and Astronomy · #astro-ph.CO
paper · pdf · doi:10.1093/mnras/stz026
9 pages, 5 figures; Tomographic BAO and RSD measurement derived from this work is available at https://github.com/Alice-Zheng/RSD-data; version accepted to MNRAS
arxiv created 2018/12/14 · arxiv updated 2019/01/16
We perform a tomographic structure growth and expansion rate analysis using the monopole, quadrupole and hexadecapole of the redshift-space galaxy power spectrum derived from the Sloan Digital Sky Survey (SDSS-III) Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 12 combined sample, which covers the redshift range of 0.20<z<0.75. By allowing for overlap between neighbouring redshift slices in order to extract information on the light-cone, we successfully obtain joint BAO and RSD constraints with a precision of 2-3% for DA, 3-10% for H and 9-12% for fσ8 with a redshift resolution of Δz∼0.04. Our measurement is consistent with that presented in arXiv:1709.05173, where the analysis is performed in configuration space. We apply our measurement to constrain the f(R) gravity model, and find that the 95% CL upper limit of \rm log10B0 can be reduced by 11% by our tomographic BAO and RSD measurement.