Stationary resonances of rapidly-rotating Kerr black holes

Apr 9, 2013
6 pages
Published in:
  • Eur.Phys.J.C 73 (2013) 4, 2378
  • Published: Apr 9, 2013
e-Print:

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Abstract: (arXiv)
The Klein-Gordon equation for a massive scalar field in the background of a rapidly-rotating Kerr black hole is studied analytically. In particular, we derive a simple formula for the stationary (marginally-stable) resonances of the field in the black-hole spacetime. The analytically derived formula is shown to agree with direct numerical computations of the resonances. Our results provide an upper bound on the instability regime of rapidly-rotating Kerr black holes to massive scalar perturbations.
Note:
  • 6 pages
  • black hole: Kerr
  • space-time: black hole
  • perturbation: scalar
  • numerical calculations
  • Klein-Gordon equation
  • background
  • stability
  • symmetry: rotation
  • scalar particle: massive