Test Bodies and Naked Singularities: Is the Self-Force the Cosmic Censor?

Enrico Barausse, Vitor Cardoso, and Gaurav Khanna
Phys. Rev. Lett. 105, 261102 – Published 28 December 2010


Jacobson and Sotiriou showed that rotating black holes could be spun up past the extremal limit by the capture of nonspinning 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 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.

  • Received 31 August 2010


© 2010 The American Physical Society

Authors & Affiliations

Enrico Barausse1, Vitor Cardoso2,3, and Gaurav Khanna4,5

  • 1Department of Physics, University of Maryland, College Park, Maryland 20742, USA
  • 2CENTRA, Departamento de Física, IST/UTL, Avenida Rovisco Pais 1, 1049 Lisboa, Portugal
  • 3Department of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677, USA
  • 4Physics Department, University of Massachusetts Dartmouth, North Dartmouth, Massachusetts 02747, USA
  • 5Albert-Einstein-Institut, Max-Planck-Institut fur Gravitationsphysik, Hannover, Germany

See Also

Testing the cosmic censorship conjecture with point particles: The effect of radiation reaction and the self-force

Enrico Barausse, Vitor Cardoso, and Gaurav Khanna
Phys. Rev. D 84, 104006 (2011)

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Vol. 105, Iss. 26 — 31 December 2010

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