Effects of Screw Instability on Extracting Energy from a Rotating Black Hole

Chin. Phys. Lett.

2005, Vol. 22

Issue (7): 1813-1816 DOI:

Original Articles

Effects of Screw Instability on Extracting Energy from a Rotating Black Hole

LEI Wei-Hua;LAN Xiao-Xia;WANG Ding-Xiong

Department of Physics, Huazhong University of Science and Technology, Wuhan 430074

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LEI Wei-Hua, LAN Xiao-Xia, WANG Ding-Xiong 2005 Chin. Phys. Lett. 22 1813-1816

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Abstract Magnetic extraction of energy from a rotating black hole (BH) is discussed in the coexistence of the Blandford--Znajek (BZ) process and the magnetic coupling (MC) process by considering the effects of the screw instability of the magnetic field. It is shown that the screw instability affects the configuration of the magnetosphere and the evolution characteristics of the BH, augmenting the energy extracted in the BZ and MC processes. In addition, the observed energy and duration of several gamma-ray bursts can be fitted well by virtue of our model.

Keywords: 97.60.Lf 98.62.Mw 98.70.Rz

Published: 01 July 2005

PACS:	97.60.Lf	(Black holes)
	98.62.Mw	(Infall, accretion, and accretion disks)
	98.70.Rz	(γ-ray sources; γ-ray bursts)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I7/01813

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