Much of our physical intuition about black hole quasinormal modes in general relativity
comes from the eikonal/geometric optics approximation. According to the well-established …

The no-hair conjecture in general relativity (GR) states that the properties of an astrophysical
Kerr black hole (BH) are completely described by its mass and spin. As a consequence, the …

The aim of this paper is to explore the thermodynamic topology of topological charged
dilatonic black holes. To achieve this, our study will begin by examining the characteristics of …

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 …

Einstein–Maxwell-scalar models allow for different classes of black hole solutions,
depending on the non-minimal coupling function f (ϕ) f (ϕ) employed, between the scalar …

In a recent series of papers, we have shown how the eikonal/geometrical optics
approximation can be used to calculate analytically the fundamental quasinormal mode …

The timelike and null-like geodesics around compact objects are some of the best tools to
classify and understand the structure of a space-time. We study the null geodesics around …

This study examines the thermodynamics of charged anti-de Sitter (AdS) black holes (BHs)
with nonlinear electrodynamics (NED) using quasinormal modes (QNMs) and thermal …

Theories of gravity extending or modifying general relativity typically allow for black hole
solutions different from the Schwarzschild/Kerr geometries. Electromagnetic observations …

Black hole “spectroscopy”, ie, the identification of quasinormal mode frequencies via
gravitational wave observations, is a powerful technique for testing the general relativistic …