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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

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Ruggeri_2020_Clusterling_of_SDSS_IV_MNRAS_3878.pdf (1.307Mb)
Date
03/2019
Author
Ruggeri, Rossana
Percival, Will J.
Gil Marin, Hector
Beutler, Florian
Mueller, Eva Maria
Zhu, Fangzhou
Padmanabhan, Nikhil
Zhao, Gong-Bo
Zarrouk, Pauline
Sanchez, Ariel G.
Bautista, Julian
Brinkmann, Jonathan
Brownstein, Joel R.
Baumgarten, Falk
Chuang, Chia Hsun
Dawson, Kyle
Seo, Hee-Jong
Tojeiro, Rita
Zhao, Cheng
Keywords
Cosmology: observations
Dark energy
Dark matter
Large scale structure of the Universe
QB Astronomy
QC Physics
DAS
Metadata
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Abstract
We measure the growth rate and its evolution using the anisotropic clustering of the extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 14 (DR14) quasar sample, which includes 148 659 quasars covering the wide redshift range of 0.8 < z < 2.2 and a sky area of 2112.90 deg2. To optimize measurements we deploy a redshift-dependent weighting scheme, which allows us to avoid binning and perform the data analysis consistently including the redshift evolution across the sample. We perform the analysis in Fourier space, and use the redshift evolving power spectrum multipoles to measure the redshift-space distortion parameter fσ8 and parameters controlling the anisotropic projection of the cosmological perturbations. We measure fσ8(z = 1.52) = 0.43 ± 0.05 and dfσ8/dz(z = 1.52) = -0.16 ± 0.08, consistent with the expectation for a lambda cold dark matter cosmology as constrained by the Planck experiment.
Citation
Ruggeri , R , Percival , W J , Gil Marin , H , Beutler , F , Mueller , E M , Zhu , F , Padmanabhan , N , Zhao , G-B , Zarrouk , P , Sanchez , A G , Bautista , J , Brinkmann , J , Brownstein , J R , Baumgarten , F , Chuang , C H , Dawson , K , Seo , H-J , Tojeiro , R & Zhao , C 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 ' , Monthly Notices of the Royal Astronomical Society , vol. 483 , no. 3 , pp. 3878–3887 . https://doi.org/10.1093/mnras/sty3395
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/sty3395
ISSN
0035-8711
Type
Journal article
Rights
Copyright © 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/sty3395
Description
Funding: RR and WJP acknowledge support from the European Research Council through the Darksurvey grant 614030. WJP also acknowledges support from the UK Science and Technology Facilities Council grant ST/N000668/1, and the UK Space Agency grant ST/N00180X/1. Funding for SDSS-III and SDSS-IV has been provided by the Alfred P. Sloan Foundation and Participating Institutions. Additional funding for SDSS-III comes from the National Science Foundationa nd the U.S. Department of Energy Office of Science.
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  • University of St Andrews Research
URL
https://arxiv.org/abs/1801.02891
http://adsabs.harvard.edu/abs/2018arXiv180102891R
URI
http://hdl.handle.net/10023/19894

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