Light deflection angle by generalized Dymnikova black hole

被引：0

作者：

Masmar, K. ^{[1
]}

机构：

[1] Hassan II Univ, Fac Sci Ain Chock, Lab High Energy Phys & Condensed Matter, Casablanca, Morocco

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2023年 / 32卷 / 01期

关键词：

Weak deflection angle; generalized Dymnikova black hole; regular black; Gauss-Bonnet theorem; gravitational lensing; COSMOLOGICAL TERM;

D O I：

10.1142/S0218271822501292

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The gravitational lensing caused by a generalized Dymnikova black hole in weak field conditions is examined in this work. The optical geometry of such a black hole is first examined, and then the Gauss-Bonnet theorem is used to calculate the deflection angle in weak field limitations. Moreover, the effect of black hole mass, the parameters A and n on the deflection angle in leading order terms are probed. Otherwise, we explore the implication of the plasma medium on the weak deflection angle behavior.

引用

页数：10

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