关于黑洞振铃激发的难易性：用激发因子量化泛音的重要性
On the ease of excitation of black hole ringing: Quantifying the importance of overtones by the excitation factors
摘要：
黑洞准正规模的激发因子量化了准正规模的$\textit{ease of excitation}$，并且与扰动源无关.我们计算了Kerr黑洞的激发因子，直到第20次泛频，发现第4、5和6次泛频对中、高自旋参数具有前三个最高的激发因子。这提供了对泛音重要性的独立确认，该泛音的重要性已经通过从应变峰值振幅附近开始的数值相关性波形的拟合数据分析来确认。
英文摘要：
The excitation factors of black hole quasinormal modes quantify the $\textit{ease of excitation}$ of the quasinormal modes and are independent of the source of perturbation. We compute the excitation factors of Kerr black holes up to the 20th overtone and find that the 4th, 5th, and 6th overtones have the first three highest excitation factors for intermediate and high spin parameters. This provides an independent confirmation of the importance of overtones that has been confirmed by the fitting data analysis of numerical relativity waveforms beginning around the strain peak amplitude.
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