具有质量损失和质量转移的递阶三体系统的长期动力学
Secular dynamics in hierarchical three-body systems with mass loss and mass transfer
摘要：
最近的研究表明，三重系统的长期演化可以在其内部双星的演化和相互作用中发挥重要作用。很少有研究探讨三重系统的恒星演化，特别是演化中恒星组分的质量损失阶段。在这里，我们研究的动力学长期演化的等级三重系统经历质量损失。我们使用长期的演化方程，包括质量损失和质量转移的影响，以及广义相对论效应。我们提出了各种进化的渠道发生在这样的发展三倍，并讨论了质量损失和质量转移的影响，在内部的二元系统，以及质量损失/转移的影响，从外部第三同伴。我们讨论了三重长期演化的几种不同类型/制度，其中三重系统的具体行为可以敏感地依赖于它的层次结构和经典和广义相对论效应的相对重要性。我们发现，由于质量损失和/或质量转移过程的轨道变化可以有效地转移一个三重系统从一个动力学制度到另一个。特别是，质量损失/转移都可以诱导和淬火高振幅（Lidov-Kozai）的偏心率和倾斜度的内双星的发展三元组的变化。它们还可以将系统动力学从有序的周期行为改变为混沌行为，反之亦然。
英文摘要：
Recent studies have shown that secular evolution of triple systems can play a major role in the evolution and interaction of their inner binaries. Very few studies explored the stellar evolution of triple systems, and in particular the mass loss phase of the evolving stellar components. Here we study the dynamical secular evolution of hierarchical triple systems undergoing mass loss. We use the secular evolution equations and include the effects of mass-loss and mass-transfer, as well as general relativistic effects. We present various evolutionary channels taking place in such evolving triples, and discuss both the effects of mass-loss and mass-transfer in the inner binary system, as well as the effects of mass-loss/transfer from an outer third companion. We discuss several distinct types/regimes of triple secular evolution, where the specific behavior of a triple system can sensitively depend on its hierarchy and the relative importance of classical and general relativistic effects. We show that the orbital changes due to mass-loss and/or mass-transfer processes can effectively transfer a triple system from one dynamical regime to another. In particular, mass loss/transfer can both induce and quench high amplitude (Lidov-Kozai) variations in the eccentricity and inclination of the inner binaries of evolving triples. They can also change the system dynamics from an orderly periodic behavior to a chaotic one, and vice versa.
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