12 citations · 17 across the 6 of their papers we have counts for
7 papers · 1 filter
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…
Non-minimal matter sector couplings in Lorentz-violating gravity: Self-consistent traversable wormholes and quasinormal modes
Renan B. Magalhães, Leandro A. Lessa, Rodolfo Casana
The anisotropies induced by Lorentz-violating fields pose significant challenges for the search for compact objects in non-vacuum environments. In this work, nevertheless, we demon…
Black string solutions in Lifshitz spacetime
L. A. Lessa, J. E. G. Silva, J. Furtado
In this paper we study black string solutions considering the Lifshitz anisotropic scaling. We have shown that a new class of asymptotically Lifshitz solutions can be generated by…
Braneworlds in Warped Einsteinian Cubic Gravity
L. A. Lessa, R. V. Maluf, J. E. G. Silva +1
Einstenian cubic gravity (ECG) is a modified theory of gravity constructed with cubic contractions of the curvature tensor. This theory has the remarkable feature of having the sam…
Einstein-Bumblebee-Dilaton black hole in Lifshitz spacetimes
L. A. Lessa, J. E. G. Silva
We investigate the critical behavior of Lifshitz black holes in Einstein-dilaton gravity in the context of spontaneous Lorentz symmetry breaking. Considering the effects of both th…
Regular black holes in Einstein cubic gravity
L. A. Lessa, J. E. G. Silva
We investigate the effects of the Einstein cubic gravity (ECG) on regular black hole solutions driven by nonlinear electrodynamics (NLE) sources. The ECG tends to form a naked sing…