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arXiv 0901.4233astro-ph.SR
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冕环中驻波扭折振荡的激发

Excitation of standing kink oscillations in coronal loops

J. Terradas

摘要:

在这项工作中,我们审查的努力,已经做了研究的激励的常设快速扭结体模式在冠状环。我们主要讨论了与时间相关的问题,它适合于描述耀斑或日冕物质抛射引起的扭折振荡。本文综述了板状和圆柱形回路几何结构的解析和数值研究。我们讨论的结果,从非常简单的一维模型更现实的(但仍然简单)循环配置。我们强调如何初值问题的结果补充本征模计算。文中还讨论了扭折振荡的可能阻尼机制。

英文摘要:

In this work we review the efforts that have been done to study the excitation of the standing fast kink body mode in coronal loops. We mainly focus on the time-dependent problem, which is appropriate to describe flare or CME induced kink oscillations. The analytical and numerical studies in slab and cylindrical loop geometries are reviewed. We discuss the results from very simple one-dimensional models to more realistic (but still simple) loop configurations. We emphasise how the results of the initial value problem complement the eigenmode calculations. The possible damping mechanisms of the kink oscillations are also discussed.

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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