The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 LRG sample: structure growth rate measurement from the anisotropic LRG correlation function in the redshift range 0.6 < z < 1.0 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Monthly Notices of the Royal Astronomical Society Année : 2020

The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 LRG sample: structure growth rate measurement from the anisotropic LRG correlation function in the redshift range 0.6 < z < 1.0

M. Icaza-Lizaola
  • Fonction : Auteur
M. Vargas-Magaña
  • Fonction : Auteur
S. Fromenteau
  • Fonction : Auteur
S. Alam
  • Fonction : Auteur
B. Camacho
  • Fonction : Auteur
H. Gil-Marin
  • Fonction : Auteur
Ashley Ross
  • Fonction : Auteur
Donald P. Schneider
  • Fonction : Auteur
Jeremy Tinker
  • Fonction : Auteur
Yuting Wang
  • Fonction : Auteur
Cheng Zhao
  • Fonction : Auteur
Abhishek Prakash
  • Fonction : Auteur
G. Rossi
  • Fonction : Auteur
Gong-Bo Zhao
  • Fonction : Auteur
Irene Cruz-Gonzalez
  • Fonction : Auteur
Axel de La Macorra
  • Fonction : Auteur

Résumé

We analyse the anisotropic clustering of the Sloan Digital Sky Survey-IV Extended Baryon Oscillation Spectroscopic Survey (eBOSS) Luminous Red Galaxy Data Release 14 (DR14) sample combined with Baryon Oscillation Spectroscopic Survey (BOSS) CMASS sample of galaxies in the redshift range 0.6 < z < 1.0, which consists of 80 118 galaxies from eBOSS and 46 439 galaxies from the BOSS-CMASS sample. The eBOSS-CMASS Luminous Red Galaxy sample has a sky coverage of 1844 deg^2, with an effective volume of 0.9 Gpc^3. The analysis was made in configuration space using a Legendre multipole expansion. The Redshift Space Distortion signal is modelled as a combination of the Convolution Lagrangian Perturbation Model and the Gaussian Streaming Model. We constrain the logarithmic growth of structure times the amplitude of dark matter density fluctuations, f(z_eff)σ_8(z_eff) = 0.454 ± 0.134, and the Alcock-Paczynski dilation scales which constraints the angular diameter distance |$D_A(z_{\mathrm{ eff}})=1466.5 \pm 133.2 (r_s/r_s^{\rm fid})$| and |$H(z_{\rm eff})=105.8 \pm 15.7 (r_s^{\rm fid}/r_s) \mathrm{km\, s^{-1}\, Mpc^{-1}}$|⁠, where is the sound horizon at the end of the baryon drag epoch and |$r_s^{\rm fid}$| is its value in the fiducial cosmology at an effective redshift z_eff = 0.72. These results are in full agreement with the current Λ-Cold Dark Matter (Λ-CDM) cosmological model inferred from Planck measurements. This study is the first eBOSS LRG full-shape analysis i.e. including Redshift Space Distortions simultaneously with the Alcock-Paczynski effect and the Baryon Acoustic Oscillation scale.
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Dates et versions

hal-02362594 , version 1 (25-08-2022)

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M. Icaza-Lizaola, M. Vargas-Magaña, S. Fromenteau, S. Alam, B. Camacho, et al.. The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 LRG sample: structure growth rate measurement from the anisotropic LRG correlation function in the redshift range 0.6 < z < 1.0. Monthly Notices of the Royal Astronomical Society, 2020, 492 (3), pp.4189-4215. ⟨10.1093/mnras/stz3602⟩. ⟨hal-02362594⟩
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