97 citations · 663 across the 38 of their papers we have counts for
38 papers
Quasinormal modes for a non-minimally coupled scalar field in a five-dimensional Einstein-power-Maxwell background
Angel Rincon, P. A. Gonzalez, Grigoris Panotopoulos +2
We study the propagation of massless scalar fields non-minimally coupled to gravity in the background of five-dimensional Einstein-power-Maxwell black holes, and using the WKB and…
Phase transitions in four-dimensional AdS black holes with a nonlinear electrodynamics source
Ramon Becar, P. A. Gonzalez, Joel Saavedra +2
In this work we consider black hole solutions to Einstein theory coupled to a nonlinear power-law electromagnetic field with a fixed exponent value. We study the extended phase spa…
Time like geodesics in three-dimensional rotating Hořava AdS black hole
P. A. González, Marco Olivares, Eleftherios Papantonopoulos +1
We study the motion of particles in the background of a three-dimensional rotating Hořava AdS black hole that corresponds to a Lorentz-violating version of the BTZ black hole and w…
Motion and collision of particles near DST Black holes
P. A. González, Marco Olivares, Yerko Vásquez +2
We consider Deser-Sarioglu-Tekin (DST) black holes as background and we study such the motion of massive particles as the collision of two spinning particles in the vicinity of its…
Perturbative and nonperturbative fermionic quasinormal modes of Einstein-Gauss-Bonnet-AdS black holes
P. A. Gonzalez, Yerko Vasquez, Ruth Noemi Villalobos
In this work, we present the quasinormal modes of a fermionic field in the background of Gauss-Bonnet-AdS black holes. We find exact solutions for at the fixed value $α=R^2/2…
Particle collisions near a three-dimensional warped AdS black hole
Ramón Bécar, P. A. González, Yerko Vásquez
In this paper we consider the warped AdS black hole solution of topologically massive gravity with a negative cosmological constant, and we investigate the possibility that i…
Hawking radiation and propagation of massive charged scalar field on a three-dimensional Gödel black hole
P. A. González, Ali Övgün, Joel Saavedra +1
In this paper we consider the three-dimensional Gödel black hole as a background and we study the vector particle tunneling from this background in order to obtain the Hawking temp…
Fermionic field perturbations of a three-dimensional Lifshitz black hole in conformal gravity
P. A. González, Yerko Vásquez, Ruth Noemi Villalobos
We study the propagation of massless fermionic fields in the background of a three-dimensional Lifshitz black hole, which is a solution of conformal gravity. The black hole solutio…
Four-dimensional black holes with scalar hair in nonlinear electrodynamics
José O. Barrientos, P. A. González, Yerko Vásquez
We consider a gravitating system consisting of a scalar field minimally coupled to gravity with a self-interacting potential and a U(1) nonlinear electromagnetic field. Solving ana…
Evanescent gravitons in Warped Anti-de Sitter space
Gaston Giribet, Yerko Vasquez
Besides black holes, the phase space of three-dimensional massive gravity about Warped-Anti de Sitter (WAdS) space contains solutions that decay exponentially in time. They describ…
Bounded orbits for photons as a consequence of extra dimensions
P. A. Gonzalez, Marco Olivares, Yerko Vasquez
In this work, we study the geodesic structure for a geometry described by a spherically symmetric four-dimensional solution embedded in a five-dimensional space known as a brane-ba…
Quasinormal modes of Four Dimensional Topological Nonlinear Charged Lifshitz Black Holes
Ramon Becar, P. A. Gonzalez, Yerko Vasquez
We study scalar perturbations of four dimensional topological nonlinear charged Lifshitz black holes with spherical and plane transverse sections, and we find numerically the quasi…
Quasinormal modes of non-Abelian hyperscaling violating Lifshitz black holes
Ramón Bécar, P. A. González, Yerko Vásquez
We study the quasinormal modes of scalar field perturbations in the background of non-Abelian hyperscaling violating Lifshitz black holes. We find that the quasinormal frequencies…
Scalar Perturbations of Nonlinear Charged Lifshitz Black Branes with Hyperscaling Violation
P. A. González, Yerko Vásquez
We study scalar perturbations of nonlinear charged Lifshitz black branes with hyperscaling violating factor, and we find numerically the quasinormal modes for scalar fields. Then,…
Teleparallel Equivalent of Lovelock Gravity
P. A. Gonzalez, Yerko Vasquez
There is a growing interest in modified gravity theories based on torsion, as these theories exhibit interesting cosmological implications. In this work, inspired by the teleparall…
Motion of particles on a Four-Dimensional Asymptotically AdS Black Hole with Scalar Hair
P. A. Gonzalez, Marco Olivares, Yerko Vasquez
Motivated by black hole solutions with matter fields outside their horizon, we study the effect of these matter fields in the motion of massless and massive particles. We consider…
Greybody Factors of Massive Charged Fermionic Fields in a Charged Two-Dimensional Dilatonic Black Hole
Ramon Becar, P. A. Gonzalez, Joel Saavedra +1
We study massive charged fermionic perturbations in the background of a charged two-dimensional dilatonic black hole, and we solve the Dirac equation analytically. Then, we compute…
Three-Dimensional Hairy Black Holes in Teleparallel Gravity
P. A. González, Joel Saavedra, Yerko Vásquez
We consider three-dimensional gravity based on torsion. Specifically, we consider an extension of the so-called Teleparallel Equivalent of General Relativity in the presence of a s…
Some cosmological models coming from gravitational theories having torsional degrees of freedom
J. Lorca Espiro, Yerko Vásquez
In this work we consider gravitational theories in which the effect of coupling characteristic classes, appropriately introduced as operators in the Einstein-Hilbert action, has be…
Extremal Hairy Black Holes
P. A. Gonzalez, Eleftherios Papantonopoulos, Joel Saavedra +1
We consider a gravitating system consisting of a scalar field minimally coupled to gravity with a self-interacting potential and an U(1) electromagnetic field. Solving the coupled…
Scalar field perturbations of a Lifshitz black hole in conformal gravity in three dimensions
Marcela Catalan, Yerko Vasquez
We study the reflection and transmission coefficients and the absorption cross section for scalar fields in the background of a Lifshitz black hole in three-dimensional conformal g…
Dirac quasinormal modes of two-dimensional charged Dilatonic Black Holes
Ramon Becar, P. A. Gonzalez, Y. Vasquez
We study charged fermionic perturbations in the background of two-dimensional charged Dilatonic black holes, and we present the exact Dirac quasinormal modes. Also, we study the st…
Dirac Quasinormal Modes of New Type Black Holes in New Massive Gravity
P. A. Gonzalez, Yerko Vasquez
We study new type black holes in three-dimensional New Massive Gravity and we calculate analytically the quasinormal modes for fermionic perturbations for some special cases. Then,…
Fermionic greybody factors of two and five-dimensional dilatonic black holes
Ramón Becar, P. A. González, Yerko Vásquez
We study fermionic perturbations in the background of a two and five-dimensional dilatonic black holes. Then, we compute the reflection and transmission coefficients and the absorp…