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arXiv 1002.1574astro-ph.SR
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关于宁静太阳上色球层中可能存在的突然磁化

On the Probable Existence of an Abrupt Magnetization in the Upper Chromosphere of the Quiet Sun

Jiri Stepan, Javier Trujillo Bueno

摘要:

我们报告一个详细的辐射转移建模所观察到的散射极化的H-α线,这使我们能够推断出定量信息的磁化安静的太阳色球。我们的分析表明,存在一个平均磁场强度&gt; 30 G的磁复杂区<B>,位于日冕温度的突然过渡区下方。正下方的色球层等离子体的磁化强度非常弱,<B>约为1 G。在平静的太阳上色球层中,可能存在这种磁化程度的突然变化,这可能对我们理解色球层(以及日冕)加热有很大的意义。

英文摘要:

We report on a detailed radiative transfer modeling of the observed scattering polarization in the H-alpha line, which allows us to infer quantitative information on the magnetization of the quiet solar chromosphere. Our analysis suggests the presence of a magnetic complexity zone with a mean field strength <B> > 30 G lying just below the sudden transition region to the coronal temperatures. The chromospheric plasma directly underneath is very weakly magnetized, with <B> ~ 1 G. The possible existence of this abrupt change in the degree of magnetization of the upper chromosphere of the quiet Sun might have large significance for our understanding of chromospheric (and, therefore, coronal) heating.

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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