Estabilidade de singularidades nuas
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Data
2019-03-29
Autores
Martins, Ébano Vitor Lopes
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Editor
Universidade Federal do Espírito Santo
Resumo
Some studies have shown divergent results regarding the stability of naked singularity solutions present in the Schwarzschild metric with negative mass. This work presents the comparison between two divergent methods, and concludes that the solution is unstable under polar perturbations. Stability was also studied for the Einstein-Maxwell-dilaton (EMD) solution having a dilatonic field coupled to the gauge field. An analysis was made for the black hole and the naked singularity present in the solution through perturbation with a massive and non-massive scalar field. The results for black hole solutions were inconclusive, while the naked singularity is unstable under such perturbations.
Descrição
Palavras-chave
Black hole , Naked singularity , General Relativity , Buracos negros , Relatividade Geral , Estabilidade
Citação
MARTINS, Ébano Vitor Lopes. Estabilidade de singularidades nuas. 2019. Dissertação (Mestrado em Física) – Universidade Federal do Espírito Santo, Vitória, 2019.