2015/09/30 by G. Compère, Geoffrey Compère, R. Oliveri +1 · 2 citations
Physics and Astronomy · #Accretion (finance) #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Black hole (networking) #Classical mechanics #Horizon #Mechanics #Observer (physics) #Physics #Pulsars and Gravitational Waves Research #Quantum mechanics #Rotating black hole #Rotational symmetry #Simple (philosophy) #astro-ph.HE #gr-qc #hep-th
paper · pdf · doi:10.1103/physrevd.93.024035
published as Phys. Rev. D 93, 024035 (2016) · Erratum version, 50 pages, 6 figures
openalex publication_date 2016/01/21 · arxiv created 2016/03/14 · arxiv updated 2016/03/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Analytical solutions to force-free electrodynamics around black holes are fundamental for building simple models of accretion disk and jet dynamics. We present a (nonexhaustive) classification of complex highest-weight solutions to the force-free equations in the near-horizon region of the extremal Kerr black hole. Bounds on the weights of solutions are derived from the finiteness of energy and the existence of a variational principle. Two classes of real magnetically dominated solutions, respectively axisymmetric and nonaxisymmetric, are described which admit finite energy with respect to the asymptotically flat observer. Subtleties related to the velocity of light surface in the near-horizon region are discussed.