22 citations · 87 across the 13 of their papers we have counts for
13 papers
Thin-Shell Black Bounce
Leandro A. Lessa, Renan B. Magalhães, Gonzalo J. Olmo
A recently proposed class of black-bounce solutions sourced by anisotropic fluids, whose exterior reproduces the Reissner-Nordström geometry all the way down to a minimal-area boun…
Charged particles and fields in bumblebee gravity: Periodic orbits and superradiance
Marco A. A. de Paula, Renan B. Magalhães, V. B. Bezerra +1
We investigate the dynamics of charged particles and fields in the background of a charged black hole in bumblebee gravity, aiming to better understand the role played by the Loren…
Hairy black holes via gravitational decoupling: light rings, absorption and spectral lines
Gabriel P. Ribeiro, Renan B. Magalhães, Luís C. B. Crispino
We investigate the absorption of massless scalar waves by three distinct hairy black hole solutions obtained through the gravitational decoupling method, considering the weak, the…
Spectral lines of dirty wormholes
Leonardo K. S. Furuta, Renan B. Magalhães, Haroldo C. D. Lima Junior +1
Astrophysical objects like black holes are usually surrounded by matter in the form of accretion disks or jets of matter. These astrophysical scenarios are expected to introduce no…
Resolving space-time singularities in spherically symmetric black holes: geodesic completeness, curvature scalars, and tidal forces
Haroldo C. D. Lima Junior, Renan B. Magalhães, Gonzalo J. Olmo +1
The existence of black holes in the Universe is nowadays established on the grounds of a blench of astrophysical observations, most notably those of gravitational waves from binary…
Singular space-times with bounded algebraic curvature scalars
Renan B. Magalhães, Gabriel P. Ribeiro, Haroldo C. D. Lima Junior +2
We show that the absence of unbounded algebraic curvature invariants constructed from polynomials of the Riemann tensor cannot guarantee the absence of strong singularities. As a c…