标题： 自旋-轨道共振与密近双星系统的演化 显示英文标题

标题： Spin-Orbit Resonance and the Evolution of Compact Binary Systems

摘要： 从后牛顿描述紧凑双星系统开始，我们推导出一组方程，描述了在螺旋进过程中轨道角动量和两个自旋矢量的演化。 我们发现相空间中存在表现出共振行为的区域，其特征是自旋矢量围绕固定方向的小幅度摆动。 由于通过辐射反应损失能量和轨道角动量，系统最终可能被捕捉到这些共振取向。 通过研究具有各种初始条件的紧凑双星的长期演化，我们发现参数空间中的分布可能受到共振捕获的显著影响。 这有助于显著缩小引力波源的搜索空间，从而提高通过模板匹配方法检测这些源的机会。 此外，通过计算螺旋进阶段结束时的预期自旋分布，我们可以预测进入坠落阶段时最可能的初始条件，这一结果对数值相对论计算具有重要意义。 显示英文摘要

摘要： Starting with a post-Newtonian description of compact binary systems, we derive a set of equations that describes the evolution of the orbital angular momentum and both spin vectors during inspiral. We find regions of phase space that exhibit resonance behavior, characterized by small librations of the spin vectors around a fixed orientation. Due to the loss of energy and orbital angular momentum through radiation reaction, systems can eventually be captured into these resonance orientations. By investigating the long-term evolution of compact binaries with a variety of initial conditions, we find that the distribution in parameter space can be strongly affected by resonance captures. This has the effect of significantly reducing the size of search space for gravitational wave sources, in turn improving the chances of detecting such sources through methods of template matching. Furthermore, by calculating the expected spin distribution at the end of the inspiral phase, we can predict what are the most likely initial conditions for the plunge phase, a result of great interest for numerical relativity calculations.