TY - JOUR
T1 - The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey
T2 - 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
AU - Bautista, Julian E.
AU - Paviot, Romain
AU - Magaña, Mariana Vargas
AU - Torre, Sylvain de la
AU - Fromenteau, Sebastien
AU - Gil-Marín, Hector
AU - Ross, Ashley J.
AU - Burtin, Etienne
AU - Dawson, Kyle S.
AU - Hou, Jiamin
AU - Kneib, Jean-Paul
AU - Mattia, Arnaud de
AU - Percival, Will J.
AU - Rossi, Graziano
AU - Tojeiro, Rita
AU - Zhao, Cheng
AU - Zhao, Gong-Bo
AU - Alam, Shadab
AU - Brownstein, Joel
AU - Chapman, Michael J.
AU - Choi, Peter D.
AU - Chuang, Chia-Hsun
AU - Escoffier, Stéphanie
AU - Macorra, Axel de la
AU - Bourboux, Hélion du Mas des
AU - Mohammad, Faizan G.
AU - Moon, Jeongin
AU - Müller, Eva-Maria
AU - Nadathur, Seshadri
AU - Newman, Jeffrey A.
AU - Schneider, Donald
AU - Seo, Hee-Jong
AU - Wang, Yuting
N1 - 29 pages, 21 figures. Matches accepted version after minor modifications. A summary of all SDSS BAO and RSD measurements with accompanying legacy figures can be found here: https://www.sdss.org/science/final-bao-and-rsd-measurements The full cosmological interpretation of these measurements can be found here: https://www.sdss.org/science/cosmology-results-from-eboss/
PY - 2020/9/17
Y1 - 2020/9/17
N2 - We present the cosmological analysis of the configuration-space anisotropic clustering in the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR16 galaxy sample. This sample consists of luminous red galaxies (LRGs) spanning the redshift range 0.6 < z < 1, at an effective redshift of zeff = 0.698. It combines 174 816 eBOSS LRGs and 202 642 BOSS CMASS galaxies. We extract and model the baryon acoustic oscillations (BAO) and redshift-space distortions (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 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. 2020, we obtain the constraints: DM/rd = 17.65 ± 0.30, DH/rd = 19.77 ± 0.47, fσ8 = 0.473 ± 0.044. These measurements are consistent with a flat ΛCDM model with standard gravity.
AB - We present the cosmological analysis of the configuration-space anisotropic clustering in the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR16 galaxy sample. This sample consists of luminous red galaxies (LRGs) spanning the redshift range 0.6 < z < 1, at an effective redshift of zeff = 0.698. It combines 174 816 eBOSS LRGs and 202 642 BOSS CMASS galaxies. We extract and model the baryon acoustic oscillations (BAO) and redshift-space distortions (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 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. 2020, we obtain the constraints: DM/rd = 17.65 ± 0.30, DH/rd = 19.77 ± 0.47, fσ8 = 0.473 ± 0.044. These measurements are consistent with a flat ΛCDM model with standard gravity.
KW - astro-ph.CO
KW - cosmology
KW - large scale structure
KW - dark energy
U2 - 10.1093/mnras/staa2800
DO - 10.1093/mnras/staa2800
M3 - Article
JO - MNRAS
JF - MNRAS
SN - 0035-8711
ER -