Browsing by Author "Contreras, Ernesto"

Now showing 1 - 6 of 6
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    A general interior anisotropic solution for a BTZ vacuum in the context of the minimal geometric deformation decoupling approach
    (2019) Contreras, Ernesto; Rincon, Angel; Bargueno, Pedro
    In this work we implement the Minimal Geometric Deformation decoupling method to obtain general static interior solutions for a BTZ vacuum from the most general isotropic solution in 2+1 dimensions including the cosmological constant . We obtain that the general solution can be generated only by the energy density of the original isotropic sector, so that this quantity plays the role of a generating function. Although as a particular example we study the static star with constant density, the method here developed can be easily applied to more complex situations described by other energy density profiles.
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    Four dimensional Einstein-power-Maxwell black hole solutions in scale-dependent gravity
    (2021) Rincon, Angel; Contreras, Ernesto; Bargueno, Pedro; Koch, Benjamin; Panotopoulos, Grigoris
    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 (Rincon et al., 2017). The starting point for this study is the Einstein-power-Maxwell theory with a vanishing cosmological constant in (3+1) dimensions, assuming a scale dependence of both the gravitational and the electromagnetic coupling. We further examine the corresponding thermodynamic properties and how these quantities experience deviations from their classical counterparts. We solve the effective Einstein's field equations using the "null energy condition'' to obtain analytical solutions. The implications of quantum corrections are also briefly discussed. Finally, we analyze our solutions and compare them to related results in the literature. (C) 2021 Elsevier B.V. All rights reserved.
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    Relativistic dust accretion onto a scale-dependent polytropic black hole
    (2019) Contreras, Ernesto; Rincon, Angel; Ramirez-Velasquez, J. M.
    In this work we study steady and spherical relativistic dust accretion onto a static and spherically symmetric scale-dependent black hole. In particular we consider a polytropic scale-dependent black hole as a central object and obtain that the radial velocity profile and the energy density are affected when scale-dependence of the central object is taken into account and such a deviation is controlled by the so called running parameters of the scale-dependence models.
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    Scale dependent three-dimensional charged black holes in linear and non-linear electrodynamics
    (2017) Rincón, Ángel; Contreras, Ernesto; Bargueño, Pedro; Koch, Benjamin; Panotopoulos, Grigorios; Hernández Arboleda, Alejandro
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    Scale-dependent (2 + 1)-dimensional electrically charged black holes in Einstein-power-Maxwell theory
    (2018) Rincón, Ángel; Contreras, Ernesto; Bargueño, Pedro; Koch, Benjamin; Panotopoulos, Grigorios
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    Scale-dependent polytropic black hole
    (2018) Contreras, Ernesto; Rincón, Ángel; Koch, Benjamin; Bargueño, Pedro