Title: 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

Abstract

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 $$D_A(z_{\mathrm{ eff}})=1466.5 \pm 133.2 (r_s/r_s^{\rm fid})$$ and $$H(z_{\rm eff})=105.8 \pm 15.7 (r_s^{\rm fid}/r_s) \mathrm{km\, s^{-1}\, Mpc^{-1}}$$, where rs is the sound horizon at the end of the baryon drag epoch and $$r_s^{\rm fid}$$ 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.

Authors:

Icaza-Lizaola, M. ^[1]; Vargas-Magaña, M. ^[2]; Fromenteau, S.  ^[3];

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Alam, S. ^[4]; Camacho, B. ^[2]; Gil-Marin, H. ^[5]; Paviot, R. ^[6]; Ross, Ashley ^[7]; Schneider, Donald P. ^[8]; Tinker, Jeremy ^[9]; Wang, Yuting ^[10]; Zhao, Cheng ^[9]; Prakash, Abhishek ^[11]; Rossi, G. ^[12]; Zao, Gong-Bo ^[13]; Cruz-Gonzalez, Irene ^[14]; de la Macorra, Axel ^[2]

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1. Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364 Ciudad de México, Mexico, Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70-264 Ciudad de México, Mexico, Institute for Computational Cosmology, Department of Physics, University of Durham, South Road, Durham DH1 3LE, UK
2. Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364 Ciudad de México, Mexico
3. Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, 62210 Cuernavaca, Mor., Mexico
4. Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ , UK
5. Institut de Ciencies del Cosmos, Universitat de Barcelona ICCUB, Barcelona, E-08028, Spain
6. Aix Marseille Universite, CNRS, LAM, Laboratoire d’Astrophysique de Marseille, Marseille, F-13013, France
7. Center for Cosmology and AstroParticle Physics, The Ohio State University, Columbus, OH 43210, USA
8. Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA, Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA
9. New York University, Center for Cosmology and Particle Physics, Department of Physics, 726 Broadway, Room 1005, New York, NY 10003, USA
10. National Astronomy Observatories, Chinese Academy of Science, Beijing 100101, P.R. China
11. IPAC, California Institute of Technology, MC 100-22, 1200 E California Boulevard, Pasadena, CA 91125, USA
12. Department of Physics and Astronomy, Sejong University, Seoul 143-747, Korea
13. National Astronomical Observatories of China, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, P.R. China, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
14. Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70-264 Ciudad de México, Mexico

Publication Date:

2019-12-31

Sponsoring Org.:

USDOE

OSTI Identifier:

1595850

Grant/Contract Number:  

AC02-05CH11231

Resource Type:

Published Article

Journal Name:

Monthly Notices of the Royal Astronomical Society

Additional Journal Information:

Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 492 Journal Issue: 3; Journal ID: ISSN 0035-8711

Publisher:

Oxford University Press

Country of Publication:

United Kingdom

Language:

English