论文标题
带电黑洞二进制的引力波和电磁辐射
Gravitational waves and electromagnetic radiation from charged black hole binaries
论文作者
论文摘要
如果天体物理黑洞是否有电荷，这仍然是一个空旷的问题。在这项工作中，我们通过分析计算在灵感阶段的带电黑洞二进制的频域中的引力和电磁波形。除了众所周知的$ f^{ - 7/6} $ waveforms外，我们还获得了$ -11/6 $ Power Law Law Law Repation Waveration Wave组件。带电二进制的波形相位是完全得出的。在电磁对应物的情况下，我们专注于电磁偶极子辐射，但我们包括四极杆的贡献以完成我们的讨论。我们还获得了电磁波的CHIRP特性。在偶极子辐射的情况下，频域波与$ f^{ - 7/6} $成比例，而$ f^{ - 1/6} $出现在Quadrupole贡献中。频域波形可用于估计当前重力波观测中黑洞的电荷。
It is still an open issue if astrophysical black holes have electric charges or not. In this work, we analytically calculate gravitational and electromagnetic waveforms in the frequency domain for charged black hole binaries during the inspiral phase. In addition to the well-known $f^{-7/6}$ waveforms, we also get a $-11/6$ power law gravitational wave component. The phase of waveforms for charged binary is fully derived. In the case of electromagnetic counterparts, we focus on the electromagnetic dipole radiation, but we include the quadrupole contribution to complete our discussion. We also obtain the chirp property of the electromagnetic waves. In the case of dipole radiation, the frequency-domain waves are proportional to $f^{-7/6}$, while $f^{-1/6}$ appears in the quadrupole contribution. The frequency-domain waveforms can be used to estimate the charges of black holes in the current gravitational wave observations.
