Scalar and Electromagnetic Quasinormal modes of Extended black hole in F(R) gravity

Abstract

In this paper we study the scalar and electromagnetic perturbations of an extended black hole in F(R) gravity. The quasinormal modes in two cases are evaluated and studied their behavior by plotting graphs in each case. To study the quasinormal mode, we use the third order WKB method. The present study shows that the absolute value of imaginary part of complex quasinormal modes increases in both cases, thus the black hole is stable against these perturbations. As the mass of the scalar field increases the imaginary part of the frequency decreases. Thus damping slows down with increasing mass of the scalar field.

arXiv comment9 pages, 3 figures, To appear in MPLA

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Cited by in corpus (3)

• Gravitational perturbations of non-singular black holes in conformal gravity
• Probing Palatini-type gravity theories through gravitational wave detections via quasinormal modes
• Black hole shadow and acceleration bounds for spherically symmetric spacetimes