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The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: anisotropic clustering analysis in configuration space

Research output: Contribution to journalArticle

  • Jiamin Hou
  • Ariel G. Sánchez
  • Román Scoccimarro
  • Salvador Salazar-Albornoz
  • Etienne Burtin
  • Héctor Gil-Marín
  • Will J. Percival
  • Rossana Ruggeri
  • Pauline Zarrouk
  • Gong Bo Zhao
  • Jonathan Brinkmann
  • Joel R. Brownstein
  • Kyle S. Dawson
  • N. Chandrachani Devi
  • Adam D. Myers
  • Salman Habib
  • Katrin Heitmann
  • Rita Tojeiro
  • Graziano Rossi
  • Donald P. Schneider
  • Hee Jong Seo
  • Yuting Wang

We explore the cosmological implications of anisotropic clustering measurements of the quasar sample from Data Release 14 (DR14) of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS) in configuration space. The ~147 000 quasar sample observed by eBOSS offers a direct tracer of the density field and bridges the gap of previous baryon acoustic oscillation measurements between redshift 0.8 < z < 2.2. By analysing the two-point correlation function characterized by clustering wedges ξwi (s) and multipoles ξℓ(s), we measure the angular diameter distance, Hubble parameter, and cosmic structure growth rate. We define a systematic error budget for our measurements based on the analysis of N-body simulations and mock catalogues. Based on the DR14 large-scale structure quasar sample at the effective redshift zeff = 1.52, we find the growth rate of cosmic structure fσ8(zeff) = 0.396 ± 0.079, and the geometric parameters DV(z)/rd = 26.47 ± 1.23, and FAP(z) = 2.53 ± 0.22, where the uncertainties include both statistical and systematic errors. These values are in excellent agreement with the best-fitting standard Λ cold dark matter model to the latest cosmic microwave background data from Planck.

Original languageEnglish
Pages (from-to)2521-2534
Number of pages14
JournalMonthly Notices of the Royal Astronomical Society
Issue number2
Early online date24 Jul 2018
Publication statusPublished - 1 Oct 2018


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    Rights statement: This article has been accepted for publication in MNRAS © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

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