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- Universidad Católica del NorteCL5 papers
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11 papers · 1 filter
Shadow analysis of an approximate rotating black hole solution with weakly coupled global monopole charge
Mohsen Fathi
We investigate the shadow properties of a rotating black hole with a weakly coupled global monopole charge, using a modified Newman-Janis algorithm. This study explores how this ch…
Fractional Einstein-Gauss-Bonnet scalar field cosmology
Bayron Micolta-Riascos, Alfredo D. Millano, Genly Leon +3
Our paper introduces a new theoretical framework called the Fractional Einstein--Gauss--Bonnet scalar field cosmology, which has important physical implications. Using fractional c…
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…
Thermodynamic and observational constraints on black holes with primary hair in Beyond Horndeski Gravity: Stability and shadows
Cristian Erices, Mohsen Fathi
In this paper, we find that unlike in General Relativity, the shift-symmetric subclass of Beyond Horndeski theories permits black holes with primary hair that are thermodynamically…
Phenomenology of an Extended Higgs Doublet Model with Family Symmetry
A. E. Cárcamo Hernández, Daniel Salinas-Arizmendi, Jonatan Vignatti +1
In order to explain the mass hierarchy and mixing pattern in the leptonic sector, we explore an extension of the Standard Model whose scalar sector includes one active and two iner…
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…