Résumé / Abstract Seminaire_GReCO

"Test bodies and naked singularities: is the self-force the cosmic censor?"

E. Barausse

Jacobson and Sotiriou recently showed that rotating black holes could be spun-up past the extremal limit by the capture of non-spinning test bodies, if one neglects radiative and self-force effects. This would represent a violation of the Cosmic Censorship Conjecture in four-dimensional, asymptotically flat spacetimes. We show that for some of the trajectories giving rise to naked singularities, radiative effects can indeed be neglected. However, for these orbits the conservative self-force is important, and seems to have the right sign to prevent the formation of naked singularities.

mercredi 6 avril 2011 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

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