| Original Articles |
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Screw Instability in Black Hole Magnetosphere and kHz QPOs in
X-Ray Binaries |
| YAO Guo-Zheng1,2,3; WANG Ding-Xiong1;MA Ren-Yi1 |
| 1Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
2Department of Physics, Beijing Normal University, Beijing 100875
3Group of Mathematics and Physics, Shijiazhuang Army Academy, Shijiazhuang 050083
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| Cite this article: |
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YAO Guo-Zheng, WANG Ding-Xiong, MA Ren-Yi 2004 Chin. Phys. Lett. 21 25-28 |
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Abstract Screw instability of the magnetic field connecting a rotating black hole (BH) with its surrounding disc is discussed in coexistence with the Blandford-Znajek (BZ) process and the magnetic coupling (MC) process. A scenario for kilohertz quasi-periodic oscillations (kHz QPOs) in x-ray binaries is proposed by introducing inductance components in the equivalent circuit for BH magnetosphere. It turns out that the period related to the screw instability is consistent with the observations of kHz QPO x-ray binaries.
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| Keywords:
04.70.-s
97.60.Lf
98.62.Mw
98.62.Js
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Published: 01 January 2004
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| PACS: |
04.70.-s
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(Physics of black holes)
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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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