Perturbations of a rotating black hole. I. Fundamental equations for gravitational, electromagnetic, and neutrino-field perturbations
Perturbations of a rotating black hole. I. Fundamental equations for gravitational, electromagnetic, and neutrino-field perturbations
复制标题
DOI：
10.1086/152444
复制
发表时间：
1973-10
期刊：
影响因子：
--
通讯作者：
S. Teukolsky
中科院分区：
文献类型：
--
作者：
S. Teukolsky
导出了描述克尔黑洞微扰的解耦可分方程。这些方程可用于研究涉及标量场、电磁场、中微子或引力场的黑洞过程。得到了许多天体物理应用：米斯纳的引力同步辐射可能解释韦伯观测的想法被证明是站不住脚的；旋转的黑洞被证明对微小的扰动是稳定的；计算了旋转黑洞产生的波的超辐射散射的能量放大；计算了由静止的非轴对称扰动引起的旋转黑洞的“自旋下降”(角动量损失)。
Decoupled, separable equations describing perturbations of a Kerr black hole are derived. These equations can be used to study black-hole processes involving scalar, electromagnetic, neutrino or gravitational fields. A number of astrophysical applications are made: Misner's idea that gravitational synchrotron radiation might explain Weber's observations is shown to be untenable; rotating black holes are shown to be stable against small perturbations; energy amplification by "superradiant scattering" of waves off a rotating black hole is computed; the "spin down" (loss of angular momentum) of a rotating black hole caused by a stationary non-axisymmetric perturbation is calculated.