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Blandford-Znajek mechanism in the general stationary axially-symmetric black-hole spacetime

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arxiv 2102.10649 v3 pith:Z5US3GTD submitted 2021-02-21 gr-qc astro-ph.HEhep-th

R. A. Konoplya , J. Kunz , A. Zhidenko This is my paper · ORCID
classification gr-qcastro-ph.HEhep-th
keywords generalspacetimeaxiallyblackblack-holeblandford-znajekenergyextraction
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We consider the Blandford-Znajek process of electromagnetic extraction of energy from a general axially symmetric asymptotically flat slowly rotating black hole. Using the general parametrization of the black-hole spacetime we construct formulas for the flux of the magnetic field and the rate of energy extraction, which are valid not only for the Kerr spacetime, but also for its arbitrary axially symmetric deformations. We show that in the dominant order these quantities depend only on a single deformation parameter, which relates the spin frequency of a black hole with its rotation parameter.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Universality of the Blandford-Znajek emission in stationary and axisymmetric spacetimes

    gr-qc 2026-02 conditional novelty 7.0 of 10

    The Blandford-Znajek jet luminosity is universal (∝Ω_h²) at leading order across parametric black-hole spacetimes and spacetime-dependent at next order, breaking the low-spin degeneracy for rapidly rotating holes.

  2. Outgoing electromagnetic flux from rotating wormholes

    gr-qc 2024-11 reject novelty 6.0 of 10

    A rotating Damour-Solodukhin wormhole with a specific, assumed magnetic field can produce a Poynting flux comparable to that of a Kerr black hole.

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