| 开放型大尺度磁场对黑洞吸积盘过渡区能量的提取 |
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| 引用本文： | 刘冬梅,李洋,方立铭,程桂平.开放型大尺度磁场对黑洞吸积盘过渡区能量的提取[J].安徽大学学报(自然科学版),2009,33(5). |
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| 作者姓名： | 刘冬梅 李洋 方立铭 程桂平 |
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| 作者单位： | 刘冬梅,方立铭,程桂平(皖南医学院,医用物理教研室,安徽,芜湖,241002);李洋(华中科技大学,物理系,湖北,武汉,430074) |
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| 基金项目： | 皖南医学院中青年科研基金资助项目 |
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| 摘 要： | 在黑洞磁层理论的基础上,利用改进的等效电路方法推导出黑洞吸积盘过渡区的喷流功率的表达式(简称TL功率),并进一步比较TL与BZ、DL功率的相对重要性,结果表明:对于低自转黑洞,TL功率比BZ、DL功率明显占优势.此外,利用该文提出的模型获得的TL功率能很好地拟合两个3CRFRI射电星系的强喷流功率.
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| 关 键 词： | 黑洞 吸积盘 过渡区 喷流功率 射电星系 |
Magnetic extraction of energy from transition region of black-hole accretion disk |
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| LIU Dong-mei,LI Yang,FANG Li-ming,CHENG Gui-ping.Magnetic extraction of energy from transition region of black-hole accretion disk[J].Journal of Anhui University(Natural Sciences),2009,33(5). |
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| Authors: | LIU Dong-mei LI Yang FANG Li-ming CHENG Gui-ping |
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| Institution: | LIU Dong-mei1,LI Yang2,FANG Li-ming1,CHENG Gui-ping1(1.Department of Medical Physics,Wannan Medical University,Wuhu 241002,China,2.Department of Physics,Huazhong University of Science , Technology,Wuhan 430074,China) |
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| Abstract: | An analytical expression for the jet power extracted from the transition region between a black hole(BH) horizon and the inner edge of the disk(hereafter the TL power) was derived based on an improved equivalent circuit in BH magnetosphere.In addition,the relative importance of this TL power relative to the BZ and DL powers was discussed.It was shown that the TL power was of great importance in explaining jet power and dominates over the BZ and DL powers especially for the slow-spinning BH.Furthermore,we sh... |
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| Keywords: | black hole accretion disk transition region jet power radio galaxies |
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