Non-monotonic orbital velocity profiles around rapidly rotating Kerr-(anti-)de Sitter black holes

Abstract

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 the profile of the orbital velocity is known, this effect constrains the spacetime parameters.

arXiv comment9 pages, 4 figures, accepted for Class. Quant. Grav

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Cited by in corpus (10)

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• Photon motion in Kerr-de Sitter spacetimes
• Current-carrying string loops in black-hole spacetimes with a repulsive cosmological constant
• Aschenbach effect and circular orbits in static and spherically symmetric black hole backgrounds
• Non-monotonic Keplerian velocity profiles around near-extreme braneworld Kerr black holes
• Aschenbach effect for spinning particles in Kerr spacetime
• Static spheres and Aschenbach effect for black holes in massive gravity
• Aschenbach effect for spinning particles in Kerr-(A)dS spacetime
• On non-monotonic orbital velocity profiles around rapidly rotating Kerr-(anti)de Sitter black holes: acomment to the recently published results