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17 papers · 1 filter
Universality in quasinormal modes of a magnetized black hole
Marcos R. Ribeiro, Eveling C. Ribeiro, Kai Lin +1
In this work, we investigate the linear stability of a magnetized Einstein-Maxwell solution describing a static, axially symmetric black hole (BH) immersed in a uniform magnetic fi…
Axial Gravitational Normal Modes of Uniform Density Star in Anti-de Sitter Spacetime
Kai Lin, Alan B. Pavan, Amilcar Rabelo de Queiroz +1
The article studies the dynamical behavior of axial gravitational perturbations of homogeneous stars in Anti-de Sitter spacetime. Because the radial coordinate transforms into…
Stability of the spacetime of a magnetized compact object
Eveling C. Ribeiro, L. Formigari, Marcos R. Ribeiro +5
We investigate the stability of scalar perturbations around a magnetized stationary compact object in General Relativity. The considered object is one of the simplest exact solutio…
Fermion behavior around Sung-Won-Kim wormholes in a generalized Kaluza-Klein gravity
Everton Cavalcante
This paper investigates the behavior of fermions in the vicinity of Sung-Won-Kim wormholes \cite{SW Kim PRD 1996} within the framework of a generalized Kaluza-Klein gravity. The st…
Probing the Solar System for Dark Matter Using the Sagnac Effect
A. D. S. Souza, C. R. Muniz, R. M. P. Neves +1
This study investigates the potential of the Sagnac Effect for detecting dark matter in the Solar System, particularly within the Sun. Originating from the relative delay and inter…
Spectroscopic tests for short-range modifications of Newtonian and post-Newtonian potentials
A. S. Lemos, G. C. Luna, E. Maciel +1
There are theoretical frameworks, such as the large extra dimension models, which predict the strengthening of the gravitational field in short distances. Here we obtain new empiri…