148 citations · 185 across the 9 of their papers we have counts for
12 papers · 1 filter
Thermal and optical signatures of a magnetic AdS black hole in dark matter and quintessence
Mohsen Fathi, Marco Olivares, Carlos E. Romero-Figueroa +1
We study a static magnetic anti-de Sitter black hole surrounded by perfect-fluid dark matter and quintessence. We follow the geometry from the horizon to the observer. We first exa…
Inverse Reconstruction of Causal Nonlinear Electrodynamics: Functional Families, Spectral Constraints, and Single-Horizon Black Holes
Ariel Guzmán, Mohsen Fathi, J. R. Villanueva
Nonlinear electrodynamics (NLED) admits many causal theories, so causality alone does not provide a unique selection principle. We formulate an inverse construction in which consti…
Dark-Sector Effects on the Phase Structure of Nonlinear Magnetic AdS Black Holes
Carlos E. Romero-Figueroa, J. R. Villanueva
We investigate the effects of perfect fluid dark matter (PFDM) and a dark-energy field on the phase structure of a nonlinear magnetically charged Anti--de Sitter (NLMC--AdS) black…
A causal magnetic black hole with finite self-energy
Mohsen Fathi, Ariel Guzmán, J. R. Villanueva
We construct a nonlinear electrodynamics (NLED) model for a static magnetic black hole. Rather than imposing a regular center, we require a Maxwell weak-field limit, finite magneti…
Quasinormal modes of a static black hole in nonlinear electrodynamics
Mohsen Fathi, Ariel Guzmán, J. R. Villanueva
We investigate the axial electromagnetic quasinormal modes of a static, asymptotically Anti--de Sitter (AdS) black hole sourced by a nonlinear electrodynamics model of Plebański ty…
Interacting Generalized Chaplygin-Jacobi gas: Thermodynamics approach
Gilberto Aguilar-Pérez, Miguel Cruz, Mohsen Fathi +1
This work investigates a cosmological model featuring an interaction between dark energy and dark matter, where the dark energy component is described by the Generalized Chaplygin-…
Cosmological evolution driven by polytropic fluids in an inhomogeneous spacetime
Gilberto Aguilar-Pérez, Miguel Cruz, Mohsen Fathi +2
Addressing the late-time accelerated expansion of the universe, known as the "dark energy problem", remains a central challenge in cosmology. While the cosmological constant is the…
Null geodesics around a black hole with weakly coupled global monopole charge
Mohsen Fathi, J. R. Villanueva, Thiago R. P. Caramês +1
In this paper, we study an asymptotically flat black hole spacetime with weakly nonminimally coupled monopole charge. We analytically and numerically investigate light ray propagat…
Black hole in a generalized Chaplygin-Jacobi dark fluid: shadow and light deflection angle
Mohsen Fathi, J. R. Villanueva, Gilberto Aguilar-Pérez +1
We investigate a generalized Chaplygin-like gas with an anisotropic equation of state, characterizing a dark fluid within which a static spherically symmetric black hole is assumed…
Light propagation around a Kerr-like black hole immersed in an inhomogeneous anisotropic plasma in Rastall gravity: Analytical solutions to the equations of motion
Mohsen Fathi, Marco Olivares, José R. Villanueva +1
In this paper, we explore the behavior of light ray trajectories in the exterior geometry of a rotating black hole within the Rastall theory of gravity, which is surrounded by an i…
Ergosphere, photon region structure, and the shadow of a rotating charged Weyl black hole
Mohsen Fathi, Marco Olivares, J. R. Villanueva
In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null an…
The geodesic structure of the Schwarzschild Anti-de Sitter black hole
Norman Cruz, Marco Olivares, Jose R. Villanueva
In the present work we found the geodesic structure of an AdS black hole. By means of a detailed analyze of the corresponding effective potentials for particles and photon, we foun…