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A brief review on cosmological analysis of galaxy surveys with multiple tracers

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Oct 2020Embargo end date: 01 Jan 2020Publisher:IOP PublishingJournal:Research in Astronomy and Astrophysics, volume 20, page 158 (issn: 1674-4527, eissn: 2397-6209,

Authors: Gong-Bo Zhao; Yuting Wang;

doi: 10.1088/1674-4527/20/10/158 , 10.48550/arxiv.2009.03862

arXiv: http://arxiv.org/abs/2009.03862

A brief review on cosmological analysis of galaxy surveys with multiple tracers

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Abstract

Galaxy redshift surveys are one of the key probes in modern cosmology. In the data analysis of galaxy surveys, the precision of the statistical measurement is primarily limited by the cosmic variance on large scales. Fortunately, this limitation can in principle be evaded by observing multiple types of biased tracers. In this brief review, we present the idea of the multi-tracer method, outline key steps in the data analysis, and show several worked examples based on the GAMA, BOSS and eBOSS galaxy surveys.

14 pages, 8 figures. Invited review for Research in Astronomy and Astrophysics (RAA)

Related Organizations

Chinese Academy of Sciences
China (People's Republic of)
National Astronomical Observatories
China (People's Republic of)
Chinese Academy of Science
China (People's Republic of)
University of Chinese Academy of Sciences
China (People's Republic of)
Chinese Academy of Science (中国科学院)
China (People's Republic of)

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Keywords

Cosmology and Nongalactic Astrophysics (astro-ph.CO), FOS: Physical sciences, Astrophysics - Cosmology and Nongalactic Astrophysics

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