Isocurvature cosmological perturbations and the CMB

被引：10
|
作者：
Langlois, D [1 ]
机构：
[1] Inst Astrophys, F-75014 Paris, France
来源：
COMPTES RENDUS PHYSIQUE | 2003年 / 4卷 / 08期
关键词：
Cosmic Microwave Background anisotropies; cosmology; early Universe;
D O I：
10.1016/j.crhy.2003.09.004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a short review on cosmological isocurvature perturbations, which some early universe models predict in addition to the standard adiabatic perturbation. After defining the isocurvature perturbations, we analyse their evolution within the framework of the standard perturbation theory. We then explain how these perturbations can be constrained by the CMB data. We finally discuss some mechanisms that generate isocurvature perturbations. (C) 2003 Academie des sciences. Published by Elsevier SAS. All rights reserved.
引用
收藏
页码：953 / 959
页数：7
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