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A Toy Model for Magnetic Field Configurations in Black Hole Accretion Discs |
| GE Zhao-Jiang;WANG Ding-Xiong;LEI Wei-Hua |
| Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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GE Zhao-Jiang, WANG Ding-Xiong, LEI Wei-Hua 2008 Chin. Phys. Lett. 25 2327-2330 |
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Abstract We discuss the feature of the magnetic field configuration arising from double counter oriented electric current-rings in the accretion disc around a Kerr black hole (BH). We discuss the relevant physical quantities corresponding to this
configuration: (1) the power and torque transferred by the large-scale magnetic field, (2) the angular momentum and energy fluxes transferred from the BH to the inner disc, (3) the radiation flux from the disc. In addition, we discuss the possibility that the closed magnetic field anchored at the disc probably evolves to the open magnetic field, which is helpful to produce the jet from the disc.
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| Keywords:
97.60.Lf
98.62.Mw
98.62.Js
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Received: 10 March 2008
Published: 31 May 2008
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| PACS: |
97.60.Lf
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(Black holes)
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98.62.Mw
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(Infall, accretion, and accretion disks)
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98.62.Js
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(Galactic nuclei (including black holes), circumnuclear matter, and bulges)
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