Early dark energy and its interaction with dark matter

被引：13

作者：

Pu, Bo-Yu ^{[1
]}

Xu, Xiao-Dong ^{[1
]}

Wang, Bin ^{[1
]}

Abdalla, Elcio ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys & Astron, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China

[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

来源：

PHYSICAL REVIEW D | 2015年 / 92卷 / 12期

基金：

中国国家自然科学基金;

关键词：

BARYON ACOUSTIC-OSCILLATIONS; HUBBLE-SPACE-TELESCOPE; CONSTRAINTS; CONSTANT; MODEL;

D O I：

10.1103/PhysRevD.92.123537

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a class of early dark energy models which has a substantial amount of dark energy in the early epoch of the Universe. We examine the impact of the early dark energy fluctuations on the growth of structure and the cosmic microwave background power spectrum in the linear approximation. Furthermore, we investigate the influence of the interaction between the early dark energy and the dark matter and its effect on the structure growth and cosmic microwave background. We finally constrain the early dark energy model parameters and the coupling between dark sectors by confronting different observations.

引用

页数：15

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