Energy extraction from higher dimensional black holes and black rings

被引：49
作者：
Nozawa, M
Maeda, K
机构：
[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan
[2] Waseda Univ, Adv Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan
[3] Waseda Univ, Waseda Inst Astrophys, Shinjuku Ku, Tokyo 1698555, Japan
来源：
PHYSICAL REVIEW D | 2005年 / 71卷 / 08期
关键词：
D O I：
10.1103/PhysRevD.71.084028
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyze the energy extraction by the Penrose process in higher dimensions. Our result shows the efficiency of the process from higher dimensional black holes and black rings can be rather high compared with that in the four-dimensional Kerr black hole. In particular, if one rotation parameter vanishes, the maximum efficiency becomes infinitely large because the angular momentum is not bounded from above. We also apply a catastrophe theory to analyze the stability of black rings. It indicates a branch of black rings with higher rotational energy is unstable, which should be a different type of instability from the Gregory-Laflamme one.
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页码：1 / 12
页数：12
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