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arXiv 2407.09560astro-ph.EPastro-ph.GA
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太阳系内的永久捕获

Permanent Capture into the Solar System

Edward Belbruno, James Green

AI总结:

本文描述了太阳附近相空间中一个具有分形结构的区域,在银河系引力扰动下可实现小质量天体从星际空间的永久捕获,该天体将永远绕太阳运行且不被抛回或碰撞,此结论适用于流浪行星等天体的捕获。

摘要:

本文描述了太阳附近相空间中一个有趣的区域,在银河系总质量的引力扰动下,可以实现小质量天体$P$从星际空间的永久捕获。$P$既不会被抛回星际空间,也不会与太阳相撞。它将永远绕太阳运行,渐近地趋近捕获集。除被永久捕获外,$P$还处于弱捕获状态。近期研究\cite{Belbruno:2024}概括描述了该区域,其具有分形结构。此结论可应用于星际空间中流浪行星及其他天体的永久捕获。

英文摘要:

In this note, an interesting region about the Sun in phase space is described where the permanent capture of an object, $P$, of small mass from interstellar space can occur, under the gravitational perturbation of the resultant mass of the Galaxy. $P$ is never ejected back into interstellar space and won't collide with the Sun. It cycles about the Sun for all time, asymptotically approaching the capture set. In addition to being permanently captured, $P$ is also weakly captured. A recent result in \cite{Belbruno:2024} describes this region in general. It has a fractal structure. This is applied to the permanent capture of rogue planets and other objects from interstellar space

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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