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Electric Charge and Magnetic Flux on Rotating Black Holes in a Force-Free Magnetosphere | | Hyun Kyu Lee
; Chul H. Lee
; Maurice H.P.M. van Putten
; | | Date: |
15 Sep 2000 | | Journal: | Mon.Not.Roy.Astron.Soc. 324 (2001) 781 | | Subject: | astro-ph | | Affiliation: | 1,3), Chul H. Lee and Maurice H.P.M. van Putten (2,3) (Department of Physics, Hanyang University, Seoul, Korea, MIT, Cambridge, MS, USA, Department of Physics and Astronomy, State University of New York,Stony Brook, New York, USA | | Abstract: | The electric charge on rotating black holes is calculated to be ~ BJ in the force-free configuration of Ghosh (2000), with a horizon flux of ~ BM^2. This charge is gravitationally weak for B ~ 10^{15} G, so that the Kerr metric applies. Being similar to the electric charge of a magnetar, both electric charge and magnetic flux should be, in sign and order of magnitude, continuous during stellar collapse into a black hole. Extraction of the rotational energy from newly formed black holes may proceed by interaction with the magnetic field. Keywords:black hole physics --magnetic fields | | Source: | arXiv, astro-ph/0009239 | | Services: | Forum | Review | PDF | Favorites | |
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