Charged scalar perturbations around a regular magnetic black hole

被引：10

作者：

Huang, Yang ^{[1
]}

Liu, Dao-Jun ^{[1
]}

机构：

[1] Shanghai Normal Univ, Ctr Astrophys, 100 Guilin Rd, Shanghai 200234, Peoples R China

来源：

PHYSICAL REVIEW D | 2016年 / 93卷 / 10期

基金：

中国国家自然科学基金;

关键词：

NONLINEAR ELECTRODYNAMICS; GENERAL-RELATIVITY; COLLAPSE;

D O I：

10.1103/PhysRevD.93.104011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study charged scalar perturbations in the background of a regular magnetic black hole. In this case, the charged scalar perturbation does not result in superradiance. By using a careful time-domain analysis, we show that the charge of the scalar field can change the real part of the quasinormal frequency, but has little impact on the imaginary part of the quasinormal frequency and the behavior of the late-time tail. Therefore, the regular magnetic black hole may be stable under the perturbations of a charged scalar field at the linear level.

引用

页数：8

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