Electric charge and magnetic flux on rotating black holes in a force-free magnetosphere |
| |
| Authors: | Hyun KyuLee Chul H.Lee Maurice H. P. M.van Putten |
| |
| Affiliation: | ;1Department of Physics, Hanyang University, Seoul 133-791, Korea;2Department of Physics and Astronomy, State University of New York, Stony Brook, NY 11794-3800, USA;3Department of Mathematics, MIT 2-378, Cambridge, MA 02139, USA |
| |
| Abstract: | The electric charge on rotating black holes is calculated to be ∼ BJ in the force-free configuration of Ghosh, with a horizon flux of ∼ BM 2. This charge is gravitationally weak for B ∼1015 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 |
|
|
