Quasinormal modes of black holes with a scalar hair in Einstein-Maxwell-dilaton theory

被引：18
|
作者：
Rincon, Angel [1 ]
Panotopoulos, Grigoris [2 ]
机构：
[1] Pontificia Univ Catolica Valparaiso, Inst Fis, Ave Brasil 2950,Casilla 4059, Valparaiso, Chile
[2] Univ Lisboa UL, Inst Super Tecn IST, Dept Fis, Ctr Astrofis Gravitacao, Ave Rovisco Pais, P-1049001 Lisbon, Portugal
来源：
PHYSICA SCRIPTA | 2020年 / 95卷 / 08期
关键词：
relativistic wave equations; physics of black holes; classical general relativity; WKB APPROACH; GRAVITATIONAL-RADIATION; PERTURBATION; STABILITY; EQUATIONS; TENSOR;
D O I：
10.1088/1402-4896/aba201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We compute the quasinormal frequencies for scalar perturbations of hairy black holes in four-dimensional Einstein-Maxwell-dilaton theory assuming a non-trivial scalar potential for the dilaton field. We investigate the impact on the spectrum of the angular degree, the overtone number, the charges of the black hole as well as the magnitude of the scalar potential. All modes are found to be stable. Our numerical results are summarized in tables, and for better visualization, we show them graphically as well.
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页数：9
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