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arXiv 2202.01617astro-ph.EP
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(616)普罗米修斯和(617)潘多拉轨道上的主要扰动物体

The main perturbing objects on the orbits of (616) Prometheus and (617) Pandora

A. R. Gomes-Júnior, T. Santana, O. C. Winter, R. Sfair

摘要:

普罗米修斯和潘多拉对卫星的动力学演化是混沌的,只有短短的3.3年李雅普诺夫时间。众所周知,每6.2年发生一次的普罗米修斯和潘多拉的后殿线的反对齐是一个关键的配置,放大了它们的混沌动力学演化。然而,普罗米修斯和潘多拉之间的相互作用不足以解释哈勃太空望远镜观察到的纵向滞后。目前的工作的主要目标是确定的主要贡献者的混沌动力学演化的普罗米修斯-潘多拉对超越自己。因此,在这项工作中,我们首先探索这个动力系统的敏感性,以了解它的数值,然后建立数值实验,以达到我们的目标。我们发现,土星系统的几乎所有主要卫星都在普罗米修斯和潘多拉轨道的演变中发挥了重要作用。

英文摘要:

The dynamical evolution of the Prometheus and Pandora pair of satellites is chaotic, with a short 3.3 years Lyapunov time. It is known that the anti-alignment of the apses line of Prometheus and Pandora, which occurs every 6.2 years, is a critical configuration that amplifies their chaotic dynamical evolution. However, the mutual interaction between Prometheus and Pandora is not enough to explain the longitudinal lags observed by the Hubble Space Telescope. The main goal of the current work is to identify the main contributors to the chaotic dynamical evolution of the Prometheus-Pandora pair beyond themselves. Therefore, in this work, we first explore the sensibility of this dynamical system to understand it numerically and then build numerical experiments to reach our goals. We identified that almost all major satellites of the Saturn system play a significant role in the evolution of Prometheus' and Pandora's orbits.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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