240 citations · 2.6k across the 71 of their papers we have counts for
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Regular charged black holes, energy conditions and quasinormal modes
Leonardo Balart, Grigoris Panotopoulos, Ángel Rincón
We discuss energy conditions and quasinormal modes for scalar perturbations of regular charged black holes within the framework of General Relativity coupled to non-linear electrod…
A Generalized Double Chaplygin Model for Anisotropic Matter: The Newtonian Case
Gabriel Abellán, Angel Rincon, Eduard Sanchez
In this work, we investigate astrophysical systems in a Newtonian regime using anisotropic matter. For this purpose, we considered that both radial and tangential pressures satisfy…
Quasinormal modes and shadow in Einstein Maxwell power-Yang-Mills black hole
Angel Rincon, Gabriel Gómez
In the present paper, we investigate the quasinormal modes of an Einstein-Maxwell power-Yang-Mills black hole in four dimensions, considering a specific value of the power paramete…
Exploring Models of Running Vacuum Energy with Viscous Dark Matter from a Dynamical System Perspective
Norman Cruz, Gabriel Gomez, Esteban Gonzalez +2
Running vacuum models and viscous dark matter scenarios beyond perfect fluid idealization are two appealing theoretical strategies that have been separately studied as alternatives…
Novel charged black hole solutions of Born-Infeld type: General properties, Smarr formula and Quasinormal frequencies
L. Balart, S. Belmar-Herrera, G. Panotopoulos +1
We investigate two novel models of charged black holes in the framework of non-linear electrodynamics of Born-Infeld type. In particular, starting from two concrete Lagrangian dens…
4D scale-dependent Schwarzschild-AdS/dS black holes: study of shadow and weak deflection angle and greybody bounding
Ali Övgün, Reggie C. Pantig, Ángel Rincón
We investigate the shadow, deflection angle, and the greybody bounding of a Schwarzschild-AdS/dS black hole in scale-dependent gravity. We used the EHT data to constrain the parame…
Anisotropic stars made of exotic matter within the complexity factor formalism
Á. Rincón, G. Panotopoulos, I. Lopes
We investigate exotic stars composed of dark energy within the context of Einstein's General Relativity, by applying an extended Chaplygin gas equation-of-state. To account for ani…
Anisotropic Quark Stars with an Interacting Quark Equation of State within the Complexity Factor Formalism
Angel Rincon, Grigoris Panotopoulos, Ilidio Lopes
Within the framework of Einstein's General Relativity we study strange quark stars assuming an interacting equation-of-state. Taking into account the presence of anisotropies in a…
The effects of running gravitational coupling on three dimensional black holes
Angel Rincon, Benjamin Koch, Cristobal Laporte +2
In the present work, we investigate the consequences of running gravitational coupling on the properties of the three-dimensional BTZ black hole. We take as starting point the func…
Cosmological constraints on scale-dependent cosmology
Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte +1
This paper examines a cosmological model of scale-dependent gravity. The gravitational action is taken to be the Einstein-Hilbert term supplemented with a cosmological constant, wh…
Orbits of light rays in (1+2)-dimensional Einstein-power-Maxwell gravity: Exact analytical solution to the null geodesic equations
Grigoris Panotopoulos, Angel Rincon
We study photon orbits within (1+2)-dimensional Einstein-power-Maxwell non-linear electrodynamics assuming a static and circularly symmetric background. An exact analytical solutio…
Binary X-ray sources in massive Brans-Dicke gravity
Grigoris Panotopoulos, Ángel Rincón, Ilídio Lopes
This study focuses on the X-ray emission of low-mass black hole binaries in massive Brans-Dicke gravity. First, we compute the accretion disk adopting the well-known Shakura-Sunyae…
Statefinder analysis of scale-dependent cosmology
Pedro D. Alvarez, Benjamin Koch, Cristobal Laporte +2
We study the statefinder parameters of a cosmological model based on scale-dependent gravity. The effective Einstein field equations come from an average effective action. From the…
Quasinormal modes of massive scalar fields in four-dimensional wormholes: anomalous decay rate
P. A. González, Eleftherios Papantonopoulos, Ángel Rincón +1
In this work we consider a Generalized Bronnikov-Ellis wormhole and the tideless Morris-Thorne wormhole and we study the propagation of massive scalar fields. We calculate the quas…
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…
Slowly rotating dark energy stars
Grigoris Panotopoulos, Ángel Rincón, Ilídio Lopes
We study isotropic and slowly-rotating stars made of dark energy adopting the extended Chaplygin equation-of-state. We compute the moment of inertia as a function of the mass of th…
Accretion of matter and spectra of Binary X-ray sources in Massive Gravity
Grigoris Panotopoulos, Angel Rincon, Ilídio Lopes
We study low-mass binary X-ray sources involving stellar mass black holes within massive gravity. Regarding the accretion disk, we adopt the standard model for an optically thick,…
ISCOs and OSCOs in the presence of a positive cosmological constant in massive gravity
Angel Rincon, Grigoris Panotopoulos, Ilidio Lopes +1
We study the impact of a non-vanishing (positive) cosmological constant on the innermost and outermost stable circular orbits (ISCOs and OSCOs, respectively) within massive gravity…
Superradiant instability and charged scalar quasinormal modes for -dimensional Coulomb-like AdS black holes from nonlinear electrodynamics
P. A. González, Ángel Rincón, Joel Saavedra +1
We study the propagation of charged scalar fields in the background of -dimensional Coulomb-like AdS black holes, and we show that such propagation is unstable under Dirichlet…
Growth of structures and redshift-space distortion data in scale-dependent gravity
Grigoris Panotopoulos, Ángel Rincón
This study is devoted to the implications of scale-dependent gravity in Cosmology. Redshift-space distortion data indicate that there is a tension between CDM and available obse…
Thermodynamics of scale-dependent Friedmann equations
Pedro Bargueno, Ernesto Contreras, Angel Rincon
In this work, the role of a time-varying Newton constant under the scale-dependent approach is investigated in the thermodynamics of the Friedman equations. In particular, we show…
Scalar quasinormal modes for 2+1-dimensional Coulomb like AdS black holes from non lineal electrodynamics
Almendra Aragón, P. A. González, Joel Saavedra +1
We study the propagation of scalar fields in the background of -dimensional Coulomb like AdS black holes, and we show that such propagation is stable under Dirichlet boundary…
Orbits of light rays in scale-dependent gravity: Exact analytical solutions to the null geodesic equations
Grigoris Panotopoulos, Angel Rincon, Ilidio Lopes
We study photon orbits in the background of -dimensional static, spherically symmetric geometries. In particular, we have obtained exact analytical solutions to the null geo…
Four dimensional Einstein-power-Maxwell black hole solutions in scale-dependent gravity
Angel Rincon, Ernesto Contreras, Pedro Bargueño +2
In the present work, we extend and generalize our previous work regarding the scale dependence applied to black holes in the presence of non-linear electrodynamics [1]. The startin…