The galactic population of globular clusters are old, dense star systems, with a typical cluster containing 104-107 stars. As an old population of stars, globular clusters contain many collapsed and degenerate objects. As a dense population of stars, globular clusters are the scene of many interesting close dynamical interactions between stars. These dynamical interactions can alter the evolution of individual stars and can produce tight binary systems containing one or two compact objects. In this review, we discuss the theoretical models of globular cluster evolution and binary evolution, techniques for simulating this evolution which lead to relativistic binaries, and current and possible future observational evidence for this population. Globular cluster evolution will focus on the properties that boost the production of hard binary systems and on the tidal interactions of the galaxy with the cluster, which tend to alter the structure of the globular cluster with time. The interaction of the components of hard binary systems alters the evolution of both bodies and can lead to exotic objects. Direct N-body integrations and Fokker-Planck simulations of the evolution of globular clusters that incorporate tidal interactions and lead to predictions of relativistic binary populations are also discussed. We discuss the current observational evidence for cataclysmic variables, millisecond pulsars, and low-mass X-ray binaries as well as possible future detection of relativistic binaries with gravitational radiation.

中文翻译：

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球状星团中的相对论双星。


银河系的球状星团是古老而致密的恒星系统，典型的星团包含 104-107 颗恒星。作为古老的恒星群，球状星团包含许多塌缩和简并的物体。作为一个密集的恒星群，球状星团是恒星之间许多有趣的紧密动态相互作用的场所。这些动态相互作用可以改变单个恒星的演化，并可以产生包含一两个致密天体的紧密双星系统。在这篇综述中，我们讨论了球状星团演化和双星演化的理论模型、模拟这种演化（导致相对论性双星）的技术，以及该群体当前和未来可能的观测证据。球状星团演化将集中于促进硬双星系统产生的特性以及星系与星团的潮汐相互作用，这些相互作用往往会随着时间改变球状星团的结构。硬二元系统各组成部分的相互作用改变了两个物体的演化，并可能产生奇异的物体。还讨论了球状星团演化的直接 N 体积分和 Fokker-Planck 模拟，其中包含潮汐相互作用并导致相对论二元种群的预测。我们讨论了当前对灾难变量、毫秒脉冲星和低质量 X 射线双星的观测证据，以及未来可能利用引力辐射探测相对论双星的证据。