QUASINONLINEAR THEORY OF COSMOLOGICAL SELF-GRAVITATING SYSTEMS

被引：70

作者：

SUTO, Y

SASAKI, M

机构：

[1] Uji Research Center, Yukawa Institute for Theoretical Physics, Kyoto University

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.66.264

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nonlinear effects of self-gravitating systems in cosmology are considered on the basis of perturbation theory. In particular, we examine several cases in which evolution of the power spectrum of density fluctuations can be analytically calculated. In some cases, nonlinearity suppresses the growth of fluctuations relative to linear theory, and the power transfer via nonlinear mode coupling is sensitive to the specific shape of the underlying fluctuation spectrum. The result is in good agreement with recent numerical simulations.

引用

页码：264 / 267

页数：4

共 7 条

[1] THE STATISTICS OF PEAKS OF GAUSSIAN RANDOM-FIELDS [J].