论文标题
地图集的当前轨道（SXV）
The current orbit of Atlas (SXV)
论文作者
论文摘要
随着Cassini-Huygens任务的成功，围绕土星的天然卫星的动态复杂性开始阐明。可以以更高水平的精度来计算新的世纪，这使得可以详细研究共鸣现象，尤其是Prometheus和Atlas之间的54:53接近平均动作的共振。对于此任务，我们绘制了详细信息，其共鸣的域具有密集的初始条件和不同参数范围。我们的最初目标是确定与54:53平均运动相关的某些临界角度的相位空间中的可能区域。我们的调查表明，当前的Atlas轨道构型不可能具有任何规律的行为，因为它位于位于54:53平均动感共振相位空间边界的混乱区域。该结果符合以前的工作（Cooper等人，2015年，Renner等，2016）。在这项工作中，我们通过显示Atlas-Prometheus 54:53的平均动作共振的详细方面来概括此类研究，例如混沌层的扩展，54:53共振的中心的薄域，其他邻里共鸣的接近性，以及其他次要结论。特别是，我们还表明，即使在共振的深度内部，也很难在很长一段时间内绘制谐振对的周期性运动。
With the success of the Cassini-Huygens mission, the dynamic complexity surrounding natural satellites of Saturn began to be elucidated. New ephemeris could be calculated with a higher level of precision, which made it possible to study in detail the resonant phenomena and, in particular, the 54:53 near mean-motion resonance between Prometheus and Atlas. For this task, we have mapped in details the domains of the resonance with dense sets of initial conditions and distinct ranges of parameters. Our initial goal was to identify possible regions in the phase space of Atlas for which some critical angles, associated with the 54:53 mean motion have a stable libration. Our investigations revealed that there is no possibility for the current Atlas orbital configuration to have any regular behavior since it is in a chaotic region located at the boundary of the 54:53 mean-motion resonance phase space. This result is in accordance with previous works (Cooper et al. 2015, Renner et al. 2016). In this work, we generalize such investigations by showing detailed aspects of the Atlas-Prometheus 54:53 mean-motion resonance, like the extension of the chaotic layers, the thin domain of the center of the 54:53 resonance, the proximity of other neighborhood resonances, among other secondary conclusions. In particular, we have also shown that even in the deep interior of the resonance, it is difficult to map periodic motion of the resonant pair for very long time spans.
