Nondisk geometry of r = 0 in Kerr-de Sitter and Kerr-Newman-de Sitter spacetimes

被引：2
|
作者：
Manko, V. S. [1 ]
Garcia-Compean, H. [1 ]
机构：
[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
来源：
PHYSICAL REVIEW D | 2014年 / 90卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.90.047501
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Gaussian curvature of the two-surface r = 0, t = const is calculated for the Kerr-de Sitter and Kerr-Newman-de Sitter solutions, yielding nonzero analytical expressions for both cases. The results obtained on the one hand exclude the possibility for that surface to be a disk and, on the other hand, permit one to establish a correct geometrical interpretation of that surface for each of the two solutions.
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页数：5
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