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首页> 外文期刊>Bulletin of the American Physical Society >APS -APS April Meeting 2017 - Event - Multi-Planet Dynamics as a Tracer of Planet Formation
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APS -APS April Meeting 2017 - Event - Multi-Planet Dynamics as a Tracer of Planet Formation

机译：APS -APS四月会议2017-活动-多行星动力学作为行星形成的示踪剂

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Gravitational interactions between neighboring planets reshape the dynamical structure of some and perhaps most planetary systems. By redistributing orbits, they obscure the locations where planets formed in individual systems. However, when treated as an ensemble, systems that experienced planet-planet interactions provide clues to the parameters that cause planet formation to differ around different stars. I will discuss differences between giant planet orbits in high- and low-metallicity systems, suggest a framework for explaining these differences in the context of planet formation, and comment on the conditions that lead to large-scale dynamical upheavals, with particular reference to the currently-stable system HR 8799. Our own solar system, though currently dynamically unexcited, may have experienced an upheaval in the past. I will end by demonstrating that the population of Kuiper belt objects in the distant 5:2 resonance with Neptune challenges standard models of the dynamical history of the outer solar system.
机译：相邻行星之间的引力相互作用重塑了某些也许是大多数行星系统的动力学结构。通过重新分配轨道，它们掩盖了单个系统中行星形成的位置。但是，当被视为一个整体时，经历了行星与行星相互作用的系统会提供一些线索，提示导致行星形成在不同恒星周围不同的参数。我将讨论高金属和低金属系统中巨型行星轨道之间的差异，为解释在行星形成背景下的这些差异提供一个框架，并评论导致大规模动态动荡的条件，尤其是对当前稳定的系统HR8799。我们自己的太阳系，尽管当前没有动态变化，但过去可能经历了剧变。最后，我将证明与海王星在5：2遥距共振中的柯伊伯带天体的数量挑战了外部太阳系动力学历史的标准模型。

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