Light deflection by a rotating global monopole spacetime

被引：121

作者：

Jusufi, Kimet ^{[1
]}

Werner, Marcus C. ^{[2
]}

Banerjee, Ayan ^{[3
]}

Ovgun, Ali ^{[4
,5
]}

机构：

[1] State Univ Tetovo, Phys Dept, Ilinden St Nn, Tetovo 1200, Macedonia

[2] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[3] Jadavpur Univ, Dept Math, Kolkata 700032, W Bengal, India

[4] Eastern Mediterranean Univ, Phys Dept, TR-99628 Famagusta, Northern Cyprus, Turkey

[5] Pontificia Univ Catolica Valparaiso, Inst Fis, Valparaiso 4950, Chile

来源：

PHYSICAL REVIEW D | 2017年 / 95卷 / 10期

关键词：

GRAVITATIONAL-FIELD;

D O I：

10.1103/PhysRevD.95.104012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the deflection of light by a rotating global monopole spacetime and a rotating Letelier spacetime in the weak deflection approximation. To this end, we apply the Gauss-Bonnet theorem to the corresponding osculating optical geometries and show that the deflection of light increases in each spacetime due to the presence of the global monopole parameter and the string cloud parameter, respectively. The results obtained for the deflection angle in the equatorial plane generalize known results for the corresponding nonrotating global monopole and Letelier spacetimes as well as the Kerr solution.

引用

页数：9

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