MODELS OF VOIDS IN THE EXPANDING UNIVERSE

被引：30

作者：

BONNOR, WB ^{[1
]}

CHAMORRO, A ^{[1
]}

机构：

[1] UNIV BASQUE COUNTRY, DEPT FIS TEOR, E-48080 BILBAO, SPAIN

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 361卷 / 01期

关键词：

Cosmology; Galaxies: clustering;

D O I：

10.1086/169162

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A void in the expanding universe is modeled by a spherical Minkowski region in a Tolman dust spacetime which tends asymptotically to a Friedmann universe. It is found that (1) a void cannot exist in a universe of positive spatial curvature, (2) a nonexpanding void can be matched only to a parabolic exterior, (3) an expanding void requires an exterior region of negative spatial curvature. Detailed models of a nonexpanding void and of an expanding one are presented.

引用

页码：21 / 26

页数：6

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