Quasinormal modes of scalarized black holes in the Einstein-Maxwell-Scalar theory

Yun Soo Myung; De-Cheng Zou

doi:10.1016/j.physletb.2019.01.046

paper

Quasinormal modes of scalarized black holes in the Einstein-Maxwell-Scalar theory

arXiv:1812.03604 · doi:10.1016/j.physletb.2019.01.046

Abstract

We perform the stability analysis on scalarized charged black holes in the Einstein-Maxwell-Scalar (EMS) theory by computing quasinormal mode spectrum. It is noted that the appearance of these black holes with scalar hair is closely related to the instability of Reissner-Nordström black holes without scalar hair in the EMS theory. The scalarized black hole solutions are classified by the node number of $n = 0, 1, 2, \dots$ , where $n = 0$ is called the fundamental branch and $n = 1, 2, \dots$ denote the $n$ excited branches. Here, we show that the $n = 1, 2$ excited black holes are unstable against against the $s (l = 0)$ -mode scalar perturbation, while the $n = 0$ fundamental black hole is stable against all scalar-vector-tensor perturbations. This is consistent with other scalarized black holes without charge found in the Einstein-Scalar-Gauss-Bonnet theory.

arXiv comment19 pages, 12 figures, version to appear in PLB

Quasinormal modes of scalarized black holes in the Einstein-Maxwell-Scalar theory

Abstract

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