Contribution of the cosmological constant to the bending of light in Kerr-de Sitter spacetime

被引：18
|
作者：
Sultana, Joseph [1 ]
机构：
[1] Univ Malta, Fac Sci, Dept Math, Msida, Malta
来源：
PHYSICAL REVIEW D | 2013年 / 88卷 / 04期
关键词：
WEYL GRAVITY; GRAVITATIONAL-FIELD; CLASSICAL TESTS; DEFLECTION; CONSTRAINTS; 2ND-ORDER; LIMIT;
D O I：
10.1103/PhysRevD.88.042003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We examine the effect of the cosmological constant Lambda on the angle of deflection of null geodesics in the equatorial plane of the Kerr-de Sitter spacetime. This is done by employing a procedure used recently by Rindler and Ishak to obtain the bending angle of light in the Schwarzschild-de Sitter geometry. We show that this approach yields a contribution from the cosmological constant in the expression for the bending angle.
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页数：5
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