Clumps into voids

被引：19

作者：

Mustapha, N ^{[1
]}

Hellaby, C ^{[1
]}

机构：

[1] Univ Cape Town, Dept Math & Appl Math, ZA-7701 Rondebosch, South Africa

来源：

GENERAL RELATIVITY AND GRAVITATION | 2001年 / 33卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

cosmology; evolution of structure; inhomogeneous cosmological models;

D O I：

10.1023/A:1010240723215

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a spherically symmetric distribution of dust and show that it is possible, under general physically reasonable conditions, for an overdensity to evolve to an underdensity (and vice versa). We find the conditions under which this occurs and illustrate it on a class of regular Lemaitre-Tolman-Bondi (LTB) solutions. The existence of this phenomenon, if verified, would have the result that the topology of density contours, assumed fixed in standard structure formation theories, would have to change and that luminous matter would not trace the dark matter distribution so well.

引用

页码：455 / 477

页数：23

共 19 条

[1] ON THE MICROWAVE BACKGROUND ANISOTROPIES PRODUCED BY NONLINEAR VOIDS [J].