Skip to main content

Research Repository

Advanced Search

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

Icaza-Lizaola, M.; Vargas-Magaña, M.; Fromenteau, S.; Alam, S.; Camacho, B.; Gil-Marin, H.; Paviot, R.; Ross, A.; Schneider, D.P.; Tinker, J.; Wang, Y.; Zhao, C.; Prakash, A.; Rossi, G.; Zao, G-B.; Cruz-Gonzalez, I.; de la Macorra, A.

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 Thumbnail


Authors

M. Icaza-Lizaola

M. Vargas-Magaña

S. Fromenteau

S. Alam

B. Camacho

H. Gil-Marin

R. Paviot

A. Ross

D.P. Schneider

J. Tinker

Y. Wang

C. Zhao

A. Prakash

G. Rossi

G-B. Zao

I. Cruz-Gonzalez

A. de la Macorra



Contributors

Miguel De-icaza-lizaola txcn63@durham.ac.uk
Other

Abstract

We analyse the anisotropic clustering of the Sloan Digital Sky Survey-IV Extended Baryon Oscillation Spectroscopic Survey (eBOSS) Luminous Red Galaxy Data Release 14 (DR14) sample combined with Baryon Oscillation Spectroscopic Survey (BOSS) CMASS sample of galaxies in the redshift range 0.6 < z < 1.0, which consists of 80 118 galaxies from eBOSS and 46 439 galaxies from the BOSS-CMASS sample. The eBOSS-CMASS Luminous Red Galaxy sample has a sky coverage of 1844 deg2, with an effective volume of 0.9 Gpc3. The analysis was made in configuration space using a Legendre multipole expansion. The Redshift Space Distortion signal is modelled as a combination of the Convolution Lagrangian Perturbation Model and the Gaussian Streaming Model. We constrain the logarithmic growth of structure times the amplitude of dark matter density fluctuations, f(zeff)σ8(zeff) = 0.454 ± 0.134, and the Alcock-Paczynski dilation scales which constraints the angular diameter distance DA(zeff)=1466.5±133.2(rs/rfids) and H(zeff)=105.8±15.7(rfids/rs)kms−1Mpc−1⁠, where rs is the sound horizon at the end of the baryon drag epoch and rfids is its value in the fiducial cosmology at an effective redshift zeff = 0.72. These results are in full agreement with the current Λ-Cold Dark Matter (Λ-CDM) cosmological model inferred from Planck measurements. This study is the first eBOSS LRG full-shape analysis i.e. including Redshift Space Distortions simultaneously with the Alcock-Paczynski effect and the Baryon Acoustic Oscillation scale.

Citation

Icaza-Lizaola, M., Vargas-Magaña, M., Fromenteau, S., Alam, S., Camacho, B., Gil-Marin, H., …de la Macorra, A. (2020). 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. Monthly Notices of the Royal Astronomical Society, 492(3), 4189-4215. https://doi.org/10.1093/mnras/stz3602

Journal Article Type Article
Acceptance Date Dec 5, 2019
Online Publication Date Dec 31, 2019
Publication Date Mar 31, 2020
Deposit Date Feb 5, 2020
Publicly Available Date Feb 5, 2020
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 492
Issue 3
Pages 4189-4215
DOI https://doi.org/10.1093/mnras/stz3602

Files

Published Journal Article (8 Mb)
PDF

Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.





Downloadable Citations