The completed SDSS-IV extended baryon oscillation spectroscopic survey: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the emission-line galaxy sample

Amélie Tamone, Anand Raichoor, Cheng Zhao, Arnaud De Mattia, Claudio Gorgoni, Etienne Burtin, Vanina Ruhlmann-Kleider, Ashley J. Ross, Shadab Alam, Will J. Percival, Santiago Avila, Michael J. Chapman, Chia Hsun Chuang, Johan Comparat, Kyle S. Dawson, Sylvain De La Torre, Hélion Du Mas Des Bourboux, Stephanie Escoffier, Violeta Gonzalez-Perez, Jiamin HouJean Paul Kneib, Faizan G. Mohammad, Eva Maria Mueller, Romain Paviot, Graziano Rossi, Donald P. Schneider, Yuting Wang, Gong Bo Zhao

Research output: Contribution to journalReview articlepeer-review

6 Scopus citations

Abstract

We present the anisotropic clustering of emission-line galaxies (ELGs) from the Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 (DR16). Our sample is composed of 173 736 ELGs covering an area of 1170 deg2 over the redshift range 0.6 ≤ z ≤ 1.1. We use the convolution Lagrangian perturbation theory in addition to the Gaussian streaming redshift space distortions to model the Legendre multipoles of the anisotropic correlation function. We show that the eBOSS ELG correlation function measurement is affected by the contribution of a radial integral constraint that needs to be modelled to avoid biased results. To mitigate the effect from unknown angular systematics, we adopt a modified correlation function estimator that cancels out the angular modes from the clustering. At the effective redshift, zeff = 0.85, including statistical and systematical uncertainties, we measure the linear growth rate of structure fσ8(zeff) = 0.35 ± 0.10, the Hubble distance DH(zeff)drag = 19.1+1.9-2.1, and the comoving angular diameter distance DM(zeff)/rdrag = 19.9 ± 1.0. These results are in agreement with the Fourier space analysis, leading to consensus values of: fσ8(zeff) = 0.315 ± 0.095, DH(zeff) = 19.6+2.2-2.1, and DM(zeff)/rdrag = 19.5 ± 1.0, consistent with ΛCDM model predictions with Planck parameters.

Original languageEnglish (US)
Pages (from-to)5527-5546
Number of pages20
JournalMonthly Notices of the Royal Astronomical Society
Volume499
Issue number4
DOIs
StatePublished - Dec 1 2020

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: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the emission-line galaxy sample'. Together they form a unique fingerprint.

Cite this