Redshift-Space Distortions and f (z) from Group-Galaxy Correlations

被引：0
|
作者：
Mohammad, F. G. [1 ]
de la Torre, S. [2 ]
Guzzo, L. [1 ]
Bianchi, D. [1 ]
Peacock, J. A. [3 ]
机构：
[1] INAF Osservatorio Astron Brera, IT-23807 Merate, LC, Italy
[2] LAM, F-13388 Marseille, France
[3] Univ Edinburgh, Inst Astron, Edinburgh EH9 3HJ, Midlothian, Scotland
来源：
ZELDOVICH UNIVERSE: GENESIS AND GROWTH OF THE COSMIC WEB | 2016年 / 11卷 / S308期
关键词：
Large-scale structure; cosmological parameters; clustering;
D O I：
10.1017/S1743921316010139
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the accuracy achievable on measurements of the the growth rate of structure f (z) using redshift-space distortions (RSD), when (a) these are measured on the group-galaxy cross correlation function; (b) the latter is expanded over a modified version of the conventional spherical armonics, "truncated multipole moments". Simulation results give first indications that this combination can push systematic errors on f (z) below 3%, using scales r >= 10h(-1)Mpc.
引用
收藏
页码：342 / 343
页数：2
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