GAUGE-INVARIANT COSMOLOGICAL PERTURBATIONS IN GENERALIZED EINSTEIN THEORIES

被引：8

作者：

HIRAI, T

MAEDA, K

机构：

[1] Department of Physics, Waseda University, Shinjuku-ku

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 431卷 / 01期

关键词：

COSMOLOGY; THEORY; GALAXIES; FORMATION; LARGE-SCALE STRUCTURE OF UNIVERSE; RELATIVITY;

D O I：

10.1086/174463

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the covariant approach and conformal transformations, we present a gauge-invariant formalism for cosmological perturbations in generalized Einstein theories (GETs), including the Brans-Dicke theory, theories with a non-minimally coupled scalar field and certain curvature-squared theories. We find an enhancement in the growth rate of density perturbations in the Brans-Dicke theory and discuss attractive features of GETs in the structure formation process.

引用

页码：6 / 19

页数：14

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