The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1

Julian E. Bautista, Romain Paviot, Mariana Vargas Magaña, Sylvain De La Torre, Sebastien Fromenteau, Hector Gil-Marín, Ashley J. Ross, Etienne Burtin, Kyle S. Dawson, Jiamin Hou, Jean Paul Kneib, Arnaud De Mattia, Will J. Percival, Graziano Rossi, Rita Tojeiro, Cheng Zhao, Gong Bo Zhao, Shadab Alam, Joel Brownstein, Michael J. ChapmanPeter D. Choi, Chia Hsun Chuang, Stéphanie Escoffier, Axel De La MacOrra, Hélion Du Mas Des Bourboux, Faizan G. Mohammad, Jeongin Moon, Eva Maria Müller, Seshadri Nadathur, Jeffrey A. Newman, Donald Schneider, Hee Jong Seo, Yuting Wang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We present the cosmological analysis of the configuration-space anisotropic clustering in the completed Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 galaxy sample. This sample consists of luminous red galaxies (LRGs) spanning the redshift range 0.6 < $z$ < 1, at an effective redshift of $z$eff = 0.698. It combines 174 816 eBOSS and 202 642 BOSS LRGs. We extract and model the baryon acoustic oscillation (BAO) and redshift-space distortion (RSD) features from the galaxy two-point correlation function to infer geometrical and dynamical cosmological constraints. The adopted methodology is extensively tested on a set of realistic simulations. The correlations between the inferred parameters from the BAO and full-shape correlation function analyses are estimated. This allows us to derive joint constraints on the three cosmological parameter combinations: DM($z$)/rd, DH($z$)/rd, and fσ8($z$), where DM is the comoving angular diameter distance, DH is the Hubble distance, rd is the comoving BAO scale, f is the linear growth rate of structure, and σ8 is the amplitude of linear matter perturbations. After combining the results with those from the parallel power spectrum analysis of Gil-Marin et al., we obtain the constraints: DM/rd = 17.65 ± 0.30, DH/rd = 19.77 ± 0.47, and fσ8 = 0.473 ± 0.044. These measurements are consistent with a flat Lambda cold dark matter model with standard gravity.

Original languageEnglish (US)
Pages (from-to)736-762
Number of pages27
JournalMonthly Notices of the Royal Astronomical Society
Volume500
Issue number1
DOIs
StatePublished - Jan 1 2021

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Fingerprint Dive into the research topics of 'The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1'. Together they form a unique fingerprint.

Cite this