Quasinormal modes of the Bardeen black hole: Scalar perturbations
Sharmanthie FernandoDepartment of Physics & Geology, Northern Kentucky University, Highland Heights, Kentucky 41099, USAJ. P. CorreaDepartment of Physics & Geology, Northern Kentucky University, Highland Heights, Kentucky 41099, USA
2012en
ABI
Abstract
The purpose of this paper is to study quasinormal modes (QNM) of the Bardeen black hole due to scalar perturbations. We have done a thorough analysis of the QNM frequencies by varying the charge $q$, mass $M$ and the spherical harmonic index $l$. The unstable null geodesics are used to compute the QNM's in the eikonal limit. Furthermore, massive scalar field modes are also studied by varying the mass of the field. Comparisons are done with the QNM frequencies of the Reissner-Nordstrom black hole.
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