The Clustering of the SDSS-IV Extended Baryon Oscillation Spectroscopic Survey DR14 Quasar Sample: Measurement of the Growth Rate of Structure from the Anisotropic Correlation Function between Redshift 0.8 and 2.2


Pauline Zarrouk, Universite Paris-Saclay
Etienne Burtin, Universite Paris-Saclay
Héctor Gil-Marín, Sorbonne Universite
Ashley J. Ross, The Ohio State University
Rita Tojeiro, University of St Andrews
Isabelle Pâris, Laboratoire d'Astrophysique de Marseille
Kyle S. Dawson, The University of Utah
Adam D. Myers, The University of Utah
Will J. Percival, University of Portsmouth
Chia Hsun Chuang, Leibniz Institute for Astrophysics Potsdam
Gong Bo Zhao, University of Portsmouth
Julian Bautista, University of Portsmouth
Johan Comparat, Max Planck Institute for Extraterrestrial Physics
Violeta González-Pérez, University of Portsmouth
Salman Habib, Argonne National Laboratory
Katrin Heitmann, Argonne National Laboratory
Jiamin Hou, Max Planck Institute for Extraterrestrial Physics
Pierre Laurent, Universite Paris-Saclay
Jean Marc Le Goff, Universite Paris-Saclay
Francisco Prada, Universidad Autónoma de Madrid
Sergio A. Rodríguez-Torres, Universidad Autónoma de Madrid
Graziano Rossi, Sejong University
Rossana Ruggeri, University of Portsmouth
Ariel G. Sánchez, Max Planck Institute for Extraterrestrial Physics
Donald P. Schneider, Pennsylvania State University
Jeremy L. Tinker, The Center for Cosmology and Particle Physics
Yuting Wang, National Astronomical Observatories Chinese Academy of Sciences
Christophe Yèche, Universite Paris-Saclay
Falk Baumgarten, Leibniz Institute for Astrophysics Potsdam
Joel R. Brownstein, The University of Utah
Sylvain de la Torre, Laboratoire d'Astrophysique de Marseille
Hélion du Mas des Bourboux, The University of Utah

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Cosmological parameters, Cosmology: observations, Dark energy, Large-scale structure of Universe


© 2017 The Authors. We present the clustering measurements of quasars in configuration space based on the Data Release 14 (DR14) of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS). This data set includes 148 659 quasars spread over the redshift range 0.8 ≤ z ≤ 2.2 and spanning 2112.9 deg2. We use the Convolution Lagrangian Perturbation Theory approach with a Gaussian Streaming model for the redshift space distortions of the correlation function and demonstrate its applicability for dark matter haloes hosting eBOSS quasar tracers. At the effective redshift zeff = 1.52, we measure the linear growth rate of structure fσ8(zeff) = 0.426 ± 0.077, the expansion rate H(zeff) = 159 -13+12(r sfid/rs) kms-1Mpc-1, and the angular diameter distance DA(zeff) = 1850 -115+90 (rs/r sfid) Mpc, where rs is the sound horizon at the end of the baryon drag epoch and r sfid is its value in the fiducial cosmology. The quoted uncertainties include both systematic and statistical contributions. The results on the evolution of distances are consistent with the predictions of flat Λ-cold dark matter cosmology with Planck parameters, and the measurement of fσ8 extends the validity of General Relativity to higher redshifts (z > 1). This paper is released with companion papers using the same sample. The results on the cosmological parameters of the studies are found to be in very good agreement, providing clear evidence of the complementarity and of the robustness of the first full-shape clustering measurements with the eBOSS DR14 quasar sample.