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.
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页码：21 / 26
页数：6
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