期刊
PHYSICAL REVIEW D
卷 84, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.84.024048
关键词
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资金
- Korea government (MEST) [2010-0028080]
- National Research Foundation of Korea [2009-0086861] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We investigate the stability of f(R)-rotating (Kerr) black hole obtained from a limited form of f(R) gravity. In order to avoid the difficulty of handling fourth order linearized equations, we transform this form of f(R) gravity into the scalar-tensor theory by introducing two auxiliary scalars. In this case, the linearized curvature scalar equation leads to a massive scalaron equation. It turns out that the f(R)-rotating black hole is unstable because of the superradiant instability known as the black-hole bomb idea.
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