We study for the first time the stability against scalar perturbations, and we compute the
spectrum of quasinormal modes of three-dimensional charged black holes in Einstein-power …

By exploiting the extreme environment of the black hole (BH) as a potential place for axion-
photon interaction, we use an axion-producing model of the magnetized plasma to study the …

We apply the confluent Heun functions to study the resonant frequencies (quasispectrum),
the Hawking radiation and the scattering process of scalar waves, in a class of spacetimes …

We consider the absorption problem for a massless scalar field propagating in static and
spherically symmetric black holes of arbitrary dimension endowed with a photon sphere. For …

We present a study of scattering of massless planar scalar waves by a charged nonrotating
black hole. Partial wave methods are applied to compute scattering and absorption cross …

This is a study of the scattering and absorption of planar gravitational waves by a Kerr black
hole in vacuum. We apply the partial wave method to compute cross sections for the special …

This paper studies the black hole shadow, absorption cross section, and Hawking radiation
of a massless scalar field in the background of a static spherically symmetric black hole …

In the present work, we compute the spectrum of quasinormal frequencies of four-
dimensional (4D) charged black holes (BHs) in Einstein-power-Maxwell (EpM) theory. In …

The current study aims to examine the impact of the boundary term on the bending angle of
light for a static spherically symmetric black hole in the modified gravity described by the f (T …

We study the propagation of a probe massless nonminimally coupled scalar field in a fixed
gravitational background of a cloud of strings in (2+ 1) dimensions. We obtain exact …