Oscilações de buracos negros / Black hole oscillations

AUTOR(ES)

Fabio Dadam

DATA DE PUBLICAÇÃO

2005

RESUMO

In the past few years, black hole oscillations became a very interesting research area mainly due to the possibility of proving the existence of such celestial bodies through the gravitational radiation emitted by them. In this work, the study of the propagation of different kinds of incident waves on a black hole is presented under the mathematical point of view. Initially, elements of differential geometry are used to establish the mathematical structure of gravitation and, under certain hypotheses, a family of solutions to the Einstein equations is obtained, describing the black holes (Schwarzschild, Reissner-Nordstr¨om, Kerr and Kerr-Newman). Teukolsky equations, which govern the black hole perturbations, are obtained with the aid of Newman-Penrose formalism and transformed to a one-dimensional wave equation. According to certain boundary conditions, solutions of this equation for complex frequencies are determined from different semi-analytic methods.

ASSUNTO(S)

ondas gravitacionais black holes (gravitation) riemannian geometry buracos negros (gravitação) geometria riemaniana gravitational waves

Documentos Relacionados

• Black holes and thermodynamics
• Fundo estocástico de ondas gravitacionais gerados por buracos negros pré-galáctiocs
• Fundo estocástico de ondas gravitacionais gerados por buracos negros pré-galáctiocs
• Fundo estocástico de ondas gravitacionais gerados por buracos negros pré-galáctiocs
• Accretion of exotic matter by black holes