Black bounces are spacetimes that can describe, depending on certain parameters, black
holes or wormholes. In this work, we use a method to obtain the matter content that …

In this study, we explore the black bounce solution in Rastall gravity and its potential source
field, which can be described as a black hole or wormhole solution depending on certain …

We investigate the absorption cross section of planar scalar massless waves impinging on
spherically symmetric black holes which are solutions of the novel 4D Einstein-Gauss …

Tidal forces produced by black holes are an important result of General Relativity related to
the spacetime curvature tensor. Among the astrophysical implications of tidal forces, the tidal …

We analyze the scalar radiation emitted by a source interacting with a nonminimally coupled
scalar field in four-dimensional Schwarzschild–de Sitter spacetime. We obtain the emission …

We analyze the scalar radiation emitted by a source in geodesic circular orbits around a
Schwarzschild–de Sitter black hole. We obtain the emitted power using quantum field theory …

Black bounces are spacetimes that can be interpreted as either black holes or wormholes
depending on specific parameters. In this study, we examine the Simpson–Visser and …

We study the scalar radiation emitted by a source orbiting a Schwarzschild–anti–de Sitter
black hole in circular geodesics. We obtain the emitted power using quantum field theory in …

We investigate analytically the power radiated by a scalar particle in circular geodesic orbits
around a Schwarzschild black hole. The radial scalar field modes are written in terms of …

Nonlinear electrodynamics has been frequently employed in the study of black holes. Some
of these black holes may be regular, while others are singular. In this work, we consider a …