182 citations · 1.6k across the 70 of their papers we have counts for
33 papers · 1 filter
Bounds on Black Bounces from Phenomenological Imprints
Alana C. L. Santos, Marcos S. Melo, Roberto V. Maluf
In this work, we derive phenomenological constraints on a symmetric black-bounce geometry supported by an anisotropic fluid. We investigate the effects of the bounce parameter and…
Shadows and gravitational perturbations of black bounces
Alana C. L. Santos, Leandro A. Lessa, Roberto V. Maluf +1
We investigate axial gravitational perturbations and shadow formation in black-bounce geometries supported by anisotropic fluids within general relativity. Two distinct classes of…
Braneworlds in Einstein-Scalar-Gauss-Bonnet gravity
José Euclides G. Silva, Leandro A. Lessa, Roberto V. Maluf
We explore the features of a thick braneworld model in five dimensions governed by a Einstein-Gauss-Bonnet gravity with a non-minimal coupling to a dynamical scalar field. We consi…
Fermionic greybody factors and strong gravitational lensing by Lorentz-violating global monopole
F. M. Belchior, R. V. Maluf, A. R. M. Oliveira +2
In this work, we study the greybody factors (GFs) of spin 1/2 and spin 3/2 fermions for a black hole with global monopole in self-interacting Kalb-Ramond gravity with Lorentz symme…
Echoes and quasinormal modes of asymmetric black bounces
Alana C. L. Santos, Leandro A. Lessa, Roberto V. Maluf +1
We study quasinormal modes and echoes of symmetric and asymmetric black bounce solutions generated by anisotropic fluids within the framework of general relativity. We derive the e…
Regular black hole solutions in -dimensional gravity coupled to nonlinear electrodynamics
Miguel A. S. Pinto, Roberto V. Maluf, Gonzalo J. Olmo
In this paper, we investigate regular black hole solutions in the (2+1)-dimensional versions of General Relativity and gravity, both coupled to nonlinear electrodynamics.…