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

作　　者：Yuting Wang Gong-Bo Zhao 

机构地区：[1]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Research in Astronomy and Astrophysics》2020年第10期160-172,共13页天文和天体物理学研究（英文版）

基　　金：supported by the National Key Basic Research and Development Program of China(No.2018YFA0404503);a grant from the CAS Interdisciplinary Innovation Team.YW is supported by the Nebula Talents Program of NAOC;supported by the National Natural Science Foundation of China(Grant Nos.11925303,11720101004,11673025 and 11890691)。

摘　　要：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 mitigated 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 e BOSS galaxy surveys.This work is a part of a special issue dedicated to the 20 th anniversary of RAA(2001–2020),which is prefaced in Wang&Ip(2020).

关 键 词：cosmology:large scale structure dark energy baryon acoustic oscillations redshift space distortions 

分 类 号：P159[天文地球—天文学]