Jiamin Hou
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the quasar sample in configuration space between redshift 0.8 and 2.2
Hou, Jiamin; Sánchez, Ariel G; Ross, Ashley J; Smith, Alex; Neveux, Richard; Bautista, Julian; Burtin, Etienne; Zhao, Cheng; Scoccimarro, Román; Dawson, Kyle S; de Mattia, Arnaud; de la Macorra, Axel; du Mas des Bourboux, Hélion; Eisenstein, Daniel J; Gil-Marín, Héctor; Lyke, Brad W; Mohammad, Faizan G; Mueller, Eva-Maria; Percival, Will J; Rossi, Graziano; Vargas Magaña, Mariana; Zarrouk, Pauline; Zhao, Gong-Bo; Brinkmann, Jonathan; Brownstein, Joel R; Chuang, Chia-Hsun; Myers, Adam D; Newman, Jeffrey A; Schneider, Donald P; Vivek, M
Authors
Ariel G Sánchez
Ashley J Ross
Alex Smith
Richard Neveux
Julian Bautista
Etienne Burtin
Cheng Zhao
Román Scoccimarro
Kyle S Dawson
Arnaud de Mattia
Axel de la Macorra
Hélion du Mas des Bourboux
Daniel J Eisenstein
Héctor Gil-Marín
Brad W Lyke
Faizan G Mohammad
Eva-Maria Mueller
Will J Percival
Graziano Rossi
Mariana Vargas Magaña
Dr Pauline Zarrouk pauline.s.zarrouk@durham.ac.uk
Academic Visitor
Gong-Bo Zhao
Jonathan Brinkmann
Joel R Brownstein
Chia-Hsun Chuang
Adam D Myers
Jeffrey A Newman
Donald P Schneider
M Vivek
Abstract
We measure the anisotropic clustering of the quasar sample from Data Release 16 (DR16) of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (eBOSS). A sample of 343 708 spectroscopically confirmed quasars between redshift 0.8 < z < 2.2 are used as tracers of the underlying dark matter field. In comparison with DR14 sample, the final sample doubles the number of objects as well as the survey area. In this paper, we present the analysis in configuration space by measuring the two-point correlation function and decomposing it using the Legendre polynomials. For the full-shape analysis of the Legendre multipole moments, we measure the baryon acoustic oscillation (BAO) distance and the growth rate of the cosmic structure. At an effective redshift of zeff = 1.48, we measure the comoving angular diameter distance DM(zeff)/rdrag = 30.66 ± 0.88, the Hubble distance DH(zeff)/rdrag = 13.11 ± 0.52, and the product of the linear growth rate and the rms linear mass fluctuation on scales of 8h−1Mpc, fσ8(zeff) = 0.439 ± 0.048. The accuracy of these measurements is confirmed using an extensive set of mock simulations developed for the quasar sample. The uncertainties on the distance and growth rate measurements have been reduced substantially (∼45 and ∼30 per cent) with respect to the DR14 results. We also perform a BAO-only analysis to cross check the robustness of the methodology of the full-shape analysis. Combining our analysis with the Fourier-space analysis, we arrive at DcM(zeff)/rdrag=30.21±0.79, DcH(zeff)/rdrag=13.23±0.47, and fσc8(zeff)=0.462±0.045.
Citation
Hou, J., Sánchez, A. G., Ross, A. J., Smith, A., Neveux, R., Bautista, J., …Vivek, M. (2021). The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the quasar sample in configuration space between redshift 0.8 and 2.2. Monthly Notices of the Royal Astronomical Society, 500(1), 1201-1221. https://doi.org/10.1093/mnras/staa3234
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 7, 2020 |
Online Publication Date | Oct 23, 2020 |
Publication Date | 2021-01 |
Deposit Date | Jun 29, 2021 |
Publicly Available Date | Jun 29, 2021 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 500 |
Issue | 1 |
Pages | 1201-1221 |
DOI | https://doi.org/10.1093/mnras/staa3234 |
Public URL | https://durham-repository.worktribe.com/output/1273401 |
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Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2020, The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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