Greybody factor for a non accelerated charged modified black hole in anti-de sitter regime

被引:6
作者
Sharif, M. [1 ]
Raza, A. [1 ]
机构
[1] Univ Lahore, Dept Math & Stat, 1 KM Def Rd, Lahore, Pakistan
关键词
Black hole; Electrodynamics; Singularity; Hawking radiation; Greybody factor; QUASI-NORMAL MODES; SPACE-TIME; GAUSS-BONNET; SCALAR FIELD; QUANTUM; RADIATION;
D O I
10.1016/j.cjph.2023.10.016
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This paper investigates the greybody factor for a non accelerated black hole with modified Maxwell electrodynamics in an anti-de Sitter regime. For this purpose, we compute the radial equation for a massless scalar field with the help of Klein-Gordon equation. We then formulate effective potential by transforming this equation into Schrodinger wave equation. We analyze the graphical behavior of effective potential for different values of mass, parameter characteriz-ing the modified Maxwell theory, anti-de Sitter radius and electromagnetic charge parameters. The exact solutions are computed at two different horizons, i.e., event and cosmological horizons through the radial equation. Furthermore, we match the obtained solutions in an intermediate regime to enhance feasibility of the greybody factor over the entire domain and check its behavior graphically. It is found that the greybody factor has a direct relation with the radius, electromagnetic charge as well as angular momentum of the black hole and an inverse relation with the anti-de Sitter radius and modification parameter. We conclude that the modified Maxwell solution reduces the emission rate of the black hole.
引用
收藏
页码:16 / 27
页数:12
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