Evolution of second-order cosmological perturbations

被引：148

作者：

Malik, KA

Wands, D

机构：

[1] GRECO, Inst Astrophys, CNRS, F-75014 Paris, France

[2] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England

来源：

CLASSICAL AND QUANTUM GRAVITY | 2004年 / 21卷 / 11期

关键词：

D O I：

10.1088/0264-9381/21/11/L01

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a method for constructing gauge-invariant cosmological perturbations which are gauge-invariant up to second order. As an example, we give the gauge-invariant definition of the second-order curvature perturbation on uniform density hypersurfaces. Using only the energy conservation equation, we show that this curvature perturbation is conserved at second order on large scales for adiabatic perturbations.

引用

页码：L65 / L71

页数：7

共 27 条

[21] Gauge invariant variables in two-parameter nonlinear perturbations [J].