EQUATORIAL STRING LOOPS IN VAIDYA-PAPAPETROU SPACETIME

被引：0
|
作者：
EGUSQUIZA, IL
机构：
[1] Department of Theoretical Physics, University of the Basque Country, 48080 Bilbao
来源：
PHYSICAL REVIEW D | 1995年 / 51卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.51.2744
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We examine the motion of test equatorial string loops in a self-similar Vaidya-Papapetrou spacetime. We obtain different qualitative behaviors for values of the power parameter λ above and below the critical value λc=1/8. For λ<λc strings can nucleate at the singularity and propagate outwards to a maximum radius, after which they recollapse. The collapsing behavior is universal (i.e., λ-independent), whereas the nucleation critical exponents are λ dependent. © 1995 The American Physical Society.
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页码：2744 / 2750
页数：7
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