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…

By Julián Bautista, R. Paviot, Mariana Vargas Magaña, Sylvain de la Torre, S. Fromenteau, H. Gil-Marín, A. Ross, É. Burtin, K. Dawson, Jiamin Hou and 23 more. Monthly notices of the Royal Astronomical Society, 2020

215 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/b6b7d277faad150357ef6c9ff1ecb4a638a2ecdd

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In Astronomy and Astrophysics

1. D. Schneider
2. Will J. Percival
3. Daniel J. Eisenstein
4. J. Tinker
5. J. Brinkmann
6. C. Chuang
7. A. Riess
8. J. Brownstein

In Instrumentation

1. D. Schneider
2. Will J. Percival
3. J. Tinker
4. C. Chuang
5. M. Blanton
6. J. Brinkmann
7. J. Brownstein
8. A. Ross

Citations in the corpus

• Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory (2020, methodology): “…in this work is part of a coordinated release of the final eBOSS measurements of BAO and RSD in the clustering of luminous red galaxies (LRG; Bautista et al. 2020; Gil-Marin et al. 2020), emission line galaxies (ELG; Raichoor et al. 2020; Tamone et al. 2020; de Mattia et al. 2020), and…”
• The Pantheon+ Analysis: Cosmological Constraints (2022, background): “…2017), SDSS Extended Baryon Oscillation Spectroscopic Survey (eBOSS) Luminous Red Galaxy (Bautista et al. 2020), SDSS eBOSS Emission Line Galaxies (Bautista et al. 2020), SDSS eBOSS Quasar (Hou et al. 2020), SDSS eBOSS Lyα (du Mas des Bourboux et al. 2020), all of which have been implemented in…”