期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 498, 期 2, 页码 2492-2531出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa2455
关键词
cosmological parameters; large-scale structure of the Universe
资金
- la Caixa Foundation [100010434, LCF/BQ/PI18/11630024]
- ANR eBOSS project of the French National Research Agency [ANR-16-CE31-0021]
- OCEVU Labex [ANR-11-LABX-0060]
- A*MIDEX project - 'Investissements d'Avenir' French government program [ANR-11-IDEX-000102]
- Programa de Apoyo a Proyectos de Investigacion e Inovacion Teconologica (PAPITT) [IA101518, IA101619]
- National Research Foundation of Korea (NRF) - Korean Ministry of Education, Science and Technology (MoEST) [2017R1E1A1A01077508, 2020R1A2C1005655]
- Sejong University
- European Research Council through the COSFORM Research Grant [670193]
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme [693024]
- Office of Science of the US Department of Energy [DE-AC02-05CH11231]
- US Department of Energy Office of Science User Facility [DE-AC02-05CH11231]
- Alfred P. Sloan Foundation
- US Department of Energy Office of Science
- Center for High-Performance Computing at the University of Utah
- [LANCAD-UNAM-DGTIC-136]
We analyse the clustering of the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey Data Release 16 luminous red galaxy sample (DR16 eBOSS LRG) in combination with the high redshift tail of the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey Data Release 12 (DR12 BOSS CMASS). We measure the redshift space distortions (RSD) and also extract the longitudinal and transverse baryonic acoustic oscillation (BAO) scale from the anisotropic power spectrum signal inferred from 377 458 galaxies between redshifts 0.6 and 1.0, with the effective redshift of z(eff) = 0.698 and effective comoving volume of 2.72 Gpc(3). After applying reconstruction, we measure the BAO scale and infer D-H(zeff)/r(drag) = 19.30 +/- 0.56 and D-M(z(eff))/r(drag) = 17.86 +/- 0.37. When we perform an RSD analysis on the pre-reconstructed catalogue on the monopole, quadrupole, and hexadecapole we find, D-H(z(eff))/r(drag) = 20.18 +/- 0.78, D-M(z(eff))/r(drag) = 17.49 +/- 0.52 and f sigma(8)(z(eff)) = 0.454 +/- 0.046. We combine both sets of results along with the measurements in configuration space and report the following consensus values: D-H(z(eff))/r(drag) = 19.77 +/- 0.47, D-M(z(eff))/r(drag) = 17.65 +/- 0.30 and f sigma(8)(z(eff)) = 0.473 +/- 0.044, which are in full agreement with the standard Lambda CDM and GR predictions. These results represent the most precise measurements within the redshift range 0.6 <= z <= 1.0 and are the culmination of more than 8 yr of SDSS observations.
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