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arXiv 0704.3250nlin.CDnlin.SI
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Stormer问题中的混沌

Chaos in the Stormer problem

Rui Dilao, Rui Alves-Pires

摘要:

我们调查的几个确切的结果在Stormer问题描述带电粒子在地球磁层的动力学。通过对该系统的分析,得出了带电粒子被捕获在地球磁层中或逃逸到无穷远的结论,捕获区域由一个环形表面即范艾伦内辐射带所限定。在俘获区,带电粒子的运动可以是周期、准周期或混沌的。在这里所述的框架内介绍了在地球磁层观测到的三种主要效应:辐射带、辐射极光和南大西洋异常。本文讨论了由Stormer问题的分析所提出的一些新的数学问题。

英文摘要:

We survey the few exact results on the Stormer problem describing the dynamics of charged particles in the Earth magnetosphere. The analysis of this system leads to the the conclusion that charged particles are trapped in the Earth magnetosphere or escape to infinity, and the trapping region is bounded by a torus-like surface, the Van Allen inner radiation belt. In the trapping region, the motion of the charged particles can be periodic, quasi-period or chaotic. The three main effects observed in the Earth magnetosphere, radiation belts, radiation aurorae and South Atlantic anomaly, are described in the framework described here. We discuss some new mathematical problems suggested by the analysis of the Stormer problem.

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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