113 citations · 367 across the 9 of their papers we have counts for
9 papers
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…
Vectorial and spinorial perturbations in Galileon Black Holes: Quasinormal modes, quasiresonant modes and stability
E. Abdalla, B. Cuadros-Melgar, Jeferson de Oliveira +2
In this work we have considered a model that includes the interaction of gravity and matter fields with Galilean invariance (the so-called derivative coupling) as well as some corr…
Stability, causality and quasinormal modes of cosmic strings and cylinders
Alan B. Pavan, E. Abdalla, C. Molina
In this work we consider the evolution of a massive scalar field in cylindrically symmetric space-times. Quasinormal modes have been calculated for static and rotating cosmic cylin…
Stability and thermodynamics of brane black holes
E. Abdalla, B. Cuadros-Melgar, A. B. Pavan +1
We consider scalar and axial gravitational perturbations of black hole solutions in brane world scenarios. We show that perturbation dynamics is surprisingly similar to the Schwarz…
Field propagation in de Sitter black holes
C. Molina, D. Giugno, E. Abdalla +1
We present an exhaustive analysis of scalar, electromagnetic and gravitational perturbations in the background of Schwarzchild-de Sitter and Reissner-Nordstrom-de Sitter spacetimes…
Area Quantization in Quasi-Extreme Black Holes
E. Abdalla, K. H. C. Castello-Branco, A. Lima-Santos
We consider quasi-extreme Kerr and quasi-extreme Schwarzschild-de Sitter black holes. From the known analytical expressions obtained for their quasi-normal modes frequencies, we su…