The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the quasar sample between redshift 0.8 and 2.2
- Neveux, Richard IRFU,CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Burtin, Etienne IRFU,CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- de Mattia, Arnaud IRFU,CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Smith, Alex IRFU,CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Ross, Ashley J ORCID Center for Cosmology and Astroparticle Physics, The Ohio State University, Columbus, OH 43210, USA
- Hou, Jiamin Max-Planck-Institut für Extraterrestrische Physik, Postfach 1312, Giessenbachstr., D-85748 Garching bei München, Germany
- Bautista, Julian ORCID Institute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouth, Portsmouth PO1 3FX, UK
- Brinkmann, Jonathan Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349, USA
- Chuang, Chia-Hsun ORCID Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA
- Dawson, Kyle S Department Physics and Astronomy, University of Utah, 115 S 1400 E, Salt Lake City, UT 84112, USA
- Gil-Marín, Héctor ORCID Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain
- W. Lyke, Brad University of Wyoming, 1000 E. University Ave., Laramie, WY 82071, USA
- de la Macorra, Axel Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364, México
- du Mas des Bourboux, Hélion Department Physics and Astronomy, University of Utah, 115 S 1400 E, Salt Lake City, UT 84112, USA
- Mohammad, Faizan G Department of Physics and Astronomy, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Müller, Eva-Maria Sub-department of Astrophysics, Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK
- Myers, Adam D University of Wyoming, 1000 E. University Ave., Laramie, WY 82071, USA
- Newman, Jeffrey A PITT PACC, Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Percival, Will J Perimeter Institute for Theoretical Physics, 31 Caroline St. North, Waterloo, ON N2L 2Y5, Canada
- Rossi, Graziano Department of Physics and Astronomy, Sejong University, Seoul 143-747, Korea
- Schneider, Donald Institute for Gravitation and the Cosmos, Pennsylvania State University, University Park, PA 16802, USA
- Vivek, M Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India
- Zarrouk, Pauline Institute for Computational Cosmology, Department of Physics, University of Durham, South Road, Durham DH1 3LE, UK
- Zhao, Cheng Institute of Physics, Laboratory of Astrophysics, École Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, CH-1290 Versoix, Switzerland
- Zhao, Gong-Bo National Astronomy Observatories, Chinese Academy of Science, Beijing, 100012, P.R. China
- 2020-9-12
Published in:
- Monthly Notices of the Royal Astronomical Society. - Oxford University Press (OUP). - 2020, vol. 499, no. 1, p. 210-229
English
ABSTRACT
We measure the clustering of quasars of the final data release (DR16) of eBOSS. The sample contains $343\, 708$ quasars between redshifts 0.8 ≤ z ≤ 2.2 over $4699\, \mathrm{deg}^2$. We calculate the Legendre multipoles (0,2,4) of the anisotropic power spectrum and perform a BAO and a Full-Shape (FS) analysis at the effective redshift zeff = 1.480. The errors include systematic errors that amount to 1/3 of the statistical error. The systematic errors comprise a modelling part studied using a blind N-body mock challenge and observational effects studied with approximate mocks to account for various types of redshift smearing and fibre collisions. For the BAO analysis, we measure the transverse comoving distance DM(zeff)/rdrag = 30.60 ± 0.90 and the Hubble distance DH(zeff)/rdrag = 13.34 ± 0.60. This agrees with the configuration space analysis, and the consensus yields: DM(zeff)/rdrag = 30.69 ± 0.80 and DH(zeff)/rdrag = 13.26 ± 0.55. In the FS analysis, we fit the power spectrum using a model based on Regularised Perturbation Theory, which includes redshift space distortions and the Alcock–Paczynski effect. The results are DM(zeff)/rdrag = 30.68 ± 0.90 and DH(zeff)/rdrag = 13.52 ± 0.51 and we constrain the linear growth rate of structure f(zeff)σ8(zeff) = 0.476 ± 0.047. Our results agree with the configuration space analysis. The consensus analysis of the eBOSS quasar sample yields: DM(zeff)/rdrag = 30.21 ± 0.79, DH(zeff)/rdrag = 3.23 ± 0.47, and f(zeff)σ8(zeff) = 0.462 ± 0.045 and is consistent with a flat ΛCDM cosmological model using Planck results.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1093/mnras/staa2780
- ISSN 0035-8711
- Persistent URL
- https://sonar.ch/global/documents/80263
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