论文标题
重复爆发：高度偏心二进制的重力波
Repeated Bursts: Gravitational Waves from Highly Eccentric Binaries
论文作者
论文摘要
由动力学相互作用形成的紧凑型对象二进制群体通常具有非零的轨道偏心率。此类二进制文件的引力波可以根据偏心率的大小来发生巨大变化，从低偏心率的小轨道谐波中发射到小的轨道谐波中，到从每种偏心率的每种偏心频率中都集中在较大的辐射中。来自这种高度偏心二进制的引力波为探测基本物理学的引人入胜的系统提供了一种有趣的系统，但也在检测方面提出了有趣的挑战。引力波特征中轨道偏心的存在提供了一种明确的方法来确定二进制的起源，而围胎段的高度动态性质通常会增强与物质和重力相关的物理学。重复爆发信号的忠实模型的产生已被证明具有挑战性，并且通常考虑使用诸如电源堆叠之类的亚最佳检测策略进行检测。本章回顾了我们当前对偏心二进制的理解，对其重力波排放进行建模的主要努力以及可以通过这些检测来探测的物理学。
Compact object binaries formed from dynamics interactions will generically have non-zero orbital eccentricity. The gravitational waves from such binaries can change drastically depending on how large the eccentricity is, ranging from emitted in small a subset of orbital harmonics at low eccentricities, to being concentrated into intense bursts of radiation from each pericenter passage at large eccentricities. Gravitational waves from such highly eccentric binaries present themselves an intriguing systems for probing fundamental physics, but also present interesting challenges in terms of detection. The presence of orbital eccentricity in the gravitational wave signature gives an unequivocal method of determining the origin of the binary, while the highly dynamical nature of pericenter passage often enhances the physics associated with matter and gravity. The generation of faithful models of the repeated burst signals has proven challenging, and often sub-optimal detection strategies like power stacking are considered for detection. This chapter reviews our current understanding of eccentric binaries, the leading efforts to model their gravitational wave emission, and the physics that can be probed with these detections.
