论文标题
引力波从二进制系统中的旋转黑洞爆发
Gravitational-wave bursts from spin-precessing black holes in binary systems
论文作者
论文摘要
进攻二进制黑洞的引力波在非较低的系统中表现出新的特征。所有当前的波形模型仅考虑了由于进动引起的信号的调制。在这封信中，我们发现这种效果具有其自身的签名，这是通过引力发射短而瞬态信号或突发的。爆发的频率与灵感的后期阶段相当。我们表明，在某些条件下，该信号足够强，可以通过高级ligo检测到。对于像爱因斯坦望远镜这样的第三代探测器，计算出的信噪比可以达到更高的值。进动的测量将为黑洞的内在结构，因此对天体物理二元形成机制提供宝贵的见解。
Gravitational waves from precessing binary black holes exhibit new features that are absent in non-precessionary systems. All current waveform models take into account only the modulation of the signal due to precession. In this letter, we find that this effect has its own signature, by gravitational emission of a short and transient signal, or burst. The frequency of the burst is comparable to that of the late stage of the inspiral. We show that under certain conditions, this signal is strong enough to be detected by Advanced LIGO. For third-generation detectors like the Einstein telescope, the calculated signal-to-noise ratio can reach higher values. Measurements of precession would provide valuable insights into the intrinsic structure of black holes, and therefore into astrophysical binary formation mechanisms.
