5 papers
Charged scalar field perturbations in Ernst black holes
Ramón Bécar, P. A. González, Yerko Vásquez
We consider the propagation of a charged massive scalar field in the background of a four-dimensional Ernst black hole and study its stability analyzing the quasinormal modes (QNMs…
Massive Dirac quasinormal modes in Schwarzschild-dS black holes: anomalous decay rate and fine structure
Almendra Aragón, Ramón Bécar, P. A. González +1
Recently, the anomalous decay rate of quasinormal modes has been studied for some geometries under scalar field perturbations, which occurs when the longest-lived modes are the one…
Perturbative and nonperturbative quasinormal modes of 4D Einstein-Gauss-Bonnet black holes
Almendra Aragón, Ramón Bécar, P. A. González +1
We study the propagation of probe scalar fields in the background of 4D Einstein-Gauss-Bonnet black holes with anti-de Sitter (AdS) asymptotics and calculate the quasinormal modes.…
Collision of particles near a three-dimensional rotating Hořava AdS black hole
Ramón Bécar, P. A. González, Yerko Vásquez
We consider a three-dimensional rotating Hořava AdS black hole, that corresponds to a Lorentz-violating version of the BTZ black hole and we analyze the effect of the breaking of L…
Quasinormal modes of three-dimensional rotating Hořava AdS black hole and the approach to thermal equilibrium
Ramón Bécar, P. A. González, Eleftherios Papantonopoulos +1
We compute the quasinormal modes (QNMs) of a massive scalar field in the background of a rotating three-dimensional Hořava AdS black hole, and we analyze the effect of the breaking…