不稳定翻转自旋双星黑洞
Unstable flip-flopping spinning binary black holes
摘要：
我们用实部和虚部的翻转频率统一描述了自旋双黑洞中的翻转效应和反排列不稳定性。我们发现这种不稳定性只对质量比$0.5<q<1$有效。我们提供的解析表达式，确定的参数空间区域的质量比和自旋幅度$(q,α_1,α_2)$的地图方面发生的不稳定性。这限制了观测双星黑洞引力波的参数估计技术的先验知识，并与此类双星系统的天体物理建模和最终反冲计算有关。
英文摘要：
We give a unified description of the flip-flop effect in spinning binary black holes and the anti-alignment instability in terms of real and imaginary flip-flop frequencies. We find that this instability is only effective for mass ratios $0.5<q<1$. We provide analytic expressions that determine the region of parameter space for which the instability occurs in terms of maps of the mass ratio and spin magnitudes $(q,α_1,α_2)$. This restricts the priors of parameter estimation techniques for the observation of gravitational waves from binary black holes and it is relevant for astrophysical modeling and final recoil computations of such binary systems.
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