Revival of the Penrose process for astrophysical applications
Revival of the Penrose process for astrophysical applications
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彭罗斯过程在天体物理学应用中的复兴
DOI：
10.1086/162952
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
N. Dadhich
中科院分区：
文献类型：
--
作者：
S. Wagh;S. Dhurandhar;N. Dadhich
利用Kerr黑洞视界外负能量轨道的奇异存在，Penrose提出可以提取黑洞的转动能量。Barclay等人（1972）和Wald（1974）分别指出，这一过程不能为高能喷流提供天体物理上可行的机制，因为要获得显著的能量，入射粒子的分裂本身必须是相对论性的。本文表明，对于沉浸在电磁场中的黑洞，相对论分裂的不便要求可以很容易地克服。
By utilizing the curious existence of negative energy orbits outside the event horizon of the Kerr black hole, Penrose proposed that rotational energy of the black hole can be extracted. It was independently shown by Bardeen et al. (1972) and Wald (1974) that this process cannot offer an astrophysically viable mechanism for high-energy jets, because for significant gain in energy the breakup of the incident particle must itself be relativistic. In this paper, it is shown that the inconvenient requirement of relativistic splitting could be easily overcome for a black hole immersed in an electromagnetic field.