R. C. de Paiva
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
R. C. de Paiva has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Rogerio Teixeira Cavalcanti
Instituto de Matemática e Estatística, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro-RJ, Brazil
2 shared publications - Roldao da Rocha
Federal University of ABC
2 shared publications K. S. Alves
1 shared publication- Kelvin dos Santos Alves
Universidade Estadual Paulista, Brasil
1 shared publication
Latest Publications
- Open Access
- 22 May 2026
- Published by Elsevier in Annals of Physics
- Vol. 492
Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties
- 22 May 2026
- Published by Elsevier in Annals of Physics
- Vol. 492
Open AccessGravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties
- Open Access
Gravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties
The stability of geodesic orbits around a regular hairy black hole, in the gravitational decoupling setup, is investigated by employing Lyapunov exponents, which quantify the divergence rate of nearby trajectories in dynamical systems. Both timelike and null geodesics are addressed, probing the effect of the hair parameter on orbital stability. Deviations from the Schwarzschild solution have a significant influence on orbit stability, potentially providing observational signatures. Quasinormal modes of regular hairy black holes are calculated, and their thermodynamic properties are discussed. Both the Rényi and the Bekenstein-Hawking entropies are reported, deepening our understanding of gravitational dynamics in the strong-field regime, contributing to ongoing approaches to modified gravity.
Open AccessGravitational decoupling and regular hairy black holes: Geodesic stability, quasinormal modes, and thermodynamic properties
The stability of geodesic orbits around a regular hairy black hole, in the gravitational decoupling setup, is investigated by employing Lyapunov exponents, which quantify the divergence rate of nearby trajectories in dynamical systems. Both timelike and null geodesics are addressed, probing the effect of the hair parameter on orbital stability. Deviations from the Schwarzschild solution have a significant influence on orbit stability, potentially providing observational signatures. Quasinormal modes of regular hairy black holes are calculated, and their thermodynamic properties are discussed. Both the Rényi and the Bekenstein-Hawking entropies are reported, deepening our understanding of gravitational dynamics in the strong-field regime, contributing to ongoing approaches to modified gravity.