Vaidya and Generalized Vaidya Solutions by Gravitational Decoupling

被引:9
|
作者
Vertogradov, Vitalii [1 ,2 ]
Misyura, Maxim [1 ,3 ]
机构
[1] Herzen State Pedag Univ Russia, Phys Dept, St Petersburg 191186, Russia
[2] SAO RAS, SPB Branch, 65 Pulkovskoe Rd, St Petersburg 196140, Russia
[3] St Petersburg State Univ, Dept High Energy & Elementary Particles Phys, Univ Embankment 7-9, St Petersburg 199034, Russia
关键词
gravitational decoupling; Vaidya spacetimes; hairy black hole; BLACK-HOLES; ATMOSPHERE;
D O I
10.3390/universe8110567
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper, we apply the gravitational decoupling method for dynamical systems in order to obtain a new type of solution that can describe a hairy dynamical black hole. We consider three cases of decoupling. The first one is the simplest and most well known when the mass function is the function only of space coordinate r. The second case is a Vaidya spacetime case when the mass function depends on time v. Finally, the third case represents the generalization of these two cases: the mass function is the function of both r and v. We also calculate the apparent horizon and singularity locations for all three cases.
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页数:11
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