0 A pr 2 00 7 Non – monotonic orbital velocity profiles around rapidly rotating Kerr – ( anti – ) de Sitter black holes

@inproceedings{Mller0AP,
  title={0 A pr 2 00 7 Non – monotonic orbital velocity profiles around rapidly rotating Kerr – ( anti – ) de Sitter black holes},
  author={Adrian M{\"u}ller and Bernd Aschenbach}
}
It has been recently demonstrated that the orbital velocity profile around Kerr black holes in the equatorial plane as observed in the locally non– rotating frame exhibits a non–monotonic radial behaviour. We show here that this unexpected minimum–maximum feature of the orbital velocity remains if the Kerr vacuum is generalized to the Kerr-de Sitter or Kerr–anti–de Sitter metric. This is a new general relativity effect in Kerr spacetimes with non–vanishing cosmological constant. Assuming that… CONTINUE READING

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