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		| Paper: | 
		General Relativistic Simulation of Magnetohydrodynamic Energy Extraction of a Rotating Black Hole | 
	 
	
		| Volume: | 
		289, The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume I | 
	 
	
		| Page: | 
		319 | 
	 
	
		| Authors: | 
		Koide, S. | 
	 
	
	
		| Abstract: | 
		We have developed the numerical method for general relativistic magnetohydrodynamic simulations in Kerr space-time. The method is applied to the basic astrophysical problem of the Kerr black hole activity in a large-scale strong magnetic field. The numerical result shows that the magnetic field extracts the rotational energy of the black hole with negative energy-at-infinity. | 
	 
	
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