Spherical curvature inhomogeneities in string cosmology

被引：20

作者：

Barrow, JD ^{[1
]}

Kunze, KE ^{[1
]}

机构：

[1] Univ Sussex, Ctr Astron, Brighton BN1 9QJ, E Sussex, England

来源：

PHYSICAL REVIEW D | 1998年 / 57卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.57.2255

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the evolution of nonlinear spherically symmetric inhomogeneities in string cosmology. Friedmann solutions of different spatial curvature are matched to produce solutions which describe the evolution of nonlinear density and curvature inhomogeneities. The evolution of bound and unbound inhomogeneities are studied. The problem of primordial black hole formation is discussed in the string cosmological context and the pattern of evolution is determined in the pre-and post-big-bang phases of evolution. [S0556-2821(98)01606-3].

引用

页码：2255 / 2263

页数：9

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