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

Journal Article · · Monthly Notices of the Royal Astronomical Society
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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 similar to 147000 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 xi(wi)(s) and multipolesi xi(l)(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 z(eff) = 1.52, we find the growth rate of cosmic structure f sigma(8)(z(eff)) = 0.396 +/- 0.079, and the geometric parameters Dv(z)/r(d) = 26.47 +/- 1.23, and F-AP(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 A cold dark matter model to the latest cosmic microwave background data from Planck.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
German Research Foundation (DFG); National Research Foundation of Korea (NRF); National Natural Science Foundation of China (NSFC); Alfred P. Sloan Foundation; University of Portsmouth
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1567061
Journal Information:
Monthly Notices of the Royal Astronomical Society, Vol. 480, Issue 2
Country of Publication:
United States
Language:
English

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Baryon acoustic oscillations at z = 2.34 from the correlations of Ly α absorption in eBOSS DR14 September 2019
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Comparing approximate methods for mock catalogues and covariance matrices – I. Correlation function October 2018
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the evolution of the growth rate using redshift-space distortions between redshift 0.8 and 2.2 December 2018
General cosmography model with spatial curvature December 2019
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 December 2019
Large-scale redshift space distortions in modified gravity theories February 2019
Growth of matter perturbations in the bi-Galileons field model December 2019
Constraining power of cosmological observables: Blind redshift spots and optimal ranges March 2019
HACC Cosmological Simulations: First Data Release September 2019
The Outer Rim Simulation: A Path to Many-core Supercomputers November 2019
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measuring the evolution of the growth rate using redshift space distortions between redshift 0.8 and 2.2 January 2018
Comparing approximate methods for mock catalogues and covariance matrices I: correlation function January 2018
Large-scale redshift space distortions in modified gravity theories January 2018
Constraining power of cosmological observables: blind redshift spots and optimal ranges January 2018

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