Higher order relativistic galaxy number counts: dominating terms

被引：25

作者：

Nielsen, Jeppe Trost ^{[1
]}

Durrer, Ruth ^{[2
,3
]}

机构：

[1] Niels Bohr Int Acad, Blegdamsvej 17, DK-2100 Copenhagen, Denmark

[2] Univ Geneva, Dept Theoret Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

[3] Univ Geneva, Ctr Astroparticle Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 03期

基金：

瑞士国家科学基金会;

关键词：

gravitational lensing; redshift surveys; cosmological parameters from LSS; REDSHIFT-SPACE;

D O I：

10.1088/1475-7516/2017/03/010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We review the number counts to second order concentrating on the terms which dominate on sub horizon scales. We re-derive the result for these terms and compare it with the different versions found in the literature. We generalize our derivation to higher order terms, especially the third order number counts which are needed to compute the 1-loop contribution to the power spectrum.

引用

页数：19

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