Superradiant instability of Kerr-de Sitter black holes in scalar-tensor theory

被引：0
|
作者：
Cheng-Yong Zhang
Shao-Jun Zhang
Bin Wang
机构：
[1] Shanghai Jiao Tong University,Department of Physics and Astronomy
来源：
Journal of High Energy Physics | / 2014卷
关键词：
Black Holes; Classical Theories of Gravity;
D O I：
暂无
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学科分类号：
摘要：
We investigate in detail the mechanism of superradiance to render the instability of Kerr-de Sitter black holes in scalar-tensor gravity. Our results provide more clues to examine the scalar-tensor gravity in the astrophysical black holes in the universe with cosmological constant. We also discuss the spontaneous scalarization in the de Sitter background and find that this instability can also happen in the spherical de Sitter configuration in a special style.
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