The Inner Cauchy horizon of axisymmetric and stationary black holes with surrounding matter

Oct, 2008
8 pages
Published in:
  • Class.Quant.Grav. 25 (2008) 222001
e-Print:

Citations per year

20092013201720212024024681012
Abstract: (arXiv)
We investigate the interior of regular axisymmetric and stationary black holes surrounded by matter and find that for non-vanishing angular momentum of the black hole the space time can always be extended regularly up to and including an inner Cauchy horizon. We provide an explicit relation for the regular metric at the inner Cauchy horizon in terms of that at the event horizon. As a consequence, we obtain the universal equality (8πJ)2=A+A(8\pi J)^2 = A^+ A^- where JJ is the black hole's angular momentum and AA^- and A+A^+ denote the horizon areas of inner Cauchy and event horizon, respectively. We also find that in the limit J0J \to 0 the inner Cauchy horizon becomes singular.
  • 04.70.Bw
  • 04.20.Cv
  • 04.40.-b
  • black hole: angular momentum
  • symmetry: axial
  • horizon