标题： 与木星5:2平均运动共振的精确而强大的混沌特性 显示英文标题

标题： The Precise and Powerful Chaos of the 5:2 Mean Motion Resonance with Jupiter

摘要： 这项工作重新审视了位于外小行星带距太阳$a\sim 2.82$天文单位处与木星的 5:2 共振动力学。首先，我们计算了动力学图谱，揭示了共振内部混沌结构的精确结构。为了验证这些混沌结构是否为自然运输通道的来源，我们另外整合了 1000 个无质量粒子，最初放置在这条线上，并跟踪它们的轨道历史长达 5 百万年。多达 99.5% 的测试粒子成为了近地天体，其中 23.4% 迁移到了小于 1 天文单位的半长轴，超过 57% 进入了地球的希尔球。我们还观察到一条由粒子近日点距离为$q \simeq 2.6$天文单位定义的边界线，沿此线粒子会逃离太阳系。 显示英文摘要

摘要： This work reexamines the dynamics of the 5:2 mean motion resonance with Jupiter located in the Outer Belt at $a\sim 2.82$ AU. First, we compute dynamical maps revealing the precise structure of chaos inside the resonance. Being interested to verify the chaotic structures as sources of natural transportation routes, we additionally integrate 1000 massless particles initially placed along them and follow their orbital histories up to 5 Myr. As many as 99.5\% of our test particles became Near-Earth Objects, 23.4\% migrated to semi-major axis below 1 AU and more than 57\% entered the Hill sphere of Earth. We have also observed a borderline defined by the $q \simeq 2.6$ AU perihelion distance along which particles escape from the Solar System.