Cosmological number counts in Einstein and Jordan frames

被引：14
|
作者：
Francfort, Jeremie [1 ,2 ]
Ghosh, Basundhara [1 ,2 ]
Durrer, Ruth [1 ,2 ]
机构：
[1] Univ Geneva, Dept Phys Theor, 24 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
[2] Univ Geneva, Ctr Astroparticle Phys, 24 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2019年 / 09期
基金：
瑞士国家科学基金会;
关键词：
cluster counts; galaxy surveys; gravitational lensing; redshift surveys; GRAVITY;
D O I：
10.1088/1475-7516/2019/09/071
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Even though we know that physical observations are frame independent, the frame dependence of cosmological perturbations is relatively subtle and has led to confusion in the past. In this paper we show that while the (unobservable) matter power spectrum is frame dependent, the observable number counts are not. We also determine how the frame dependence of the power spectrum depends on scale.
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收藏
页数：19
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