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arXiv 1206.6097astro-ph.SR
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日冕加热的当代观点

A Contemporary View of Coronal Heating

Clare E. Parnell, Ineke De Moortel

摘要:

长期以来,确定导致太阳和许多其他恒星的外层大气达到比其表面温度高几个数量级的温度的加热机制(或机制)一直是一个关键问题。几十年来,这个问题一直被称为日冕加热问题,但现在很清楚,“日冕加热”不能孤立地处理或解释,整个太阳大气层的加热必须作为一个高度耦合的系统来研究。已知恒星的磁场扮演关键角色,但是,尽管太阳望远镜、计算能力和对理论机制的更深入理解有了重大进步,但哪种机制或哪几种机制是色球层和日冕能量的主要供应者的问题仍然悬而未决。继最近取得的实质性进展之后,我们考虑了最有可能的竞争者,并讨论了导致并且仍然导致确定实际(日冕)加热机制如此困难的关键因素。

英文摘要:

Determining the heating mechanism (or mechanisms) that causes the outer atmosphere of the Sun, and many other stars, to reach temperatures orders of magnitude higher than their surface temperatures has long been a key problem. For decades the problem has been known as the coronal heating problem, but it is now clear that `coronal heating' cannot be treated or explained in isolation and that the heating of the whole solar atmosphere must be studied as a highly coupled system. The magnetic field of the star is known to play a key role, but, despite significant advancements in solar telescopes, computing power and much greater understanding of theoretical mechanisms, the question of which mechanism or mechanisms are the dominant supplier of energy to the chromosphere and corona is still open. Following substantial recent progress, we consider the most likely contenders and discuss the key factors that have made, and still make, determining the actual (coronal) heating mechanism (or mechanisms) so difficult.

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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