太阳磁化“龙卷风”：与暗条的关系
Solar Magnetized "Tornadoes": Relation to Filaments
摘要：
太阳磁化“龙卷风”是在太阳大气中发现的一种现象，在日冕中表现为龙卷风状结构，但根在光球层。像其他太阳现象一样，太阳龙卷风是磁化等离子体的一个特征，因此与地球上的龙卷风截然不同。在这里，我们报告了对太阳“龙卷风”的第一次分析{在本信的修订期间，分别在《天体物理学杂志快报》（Li et al. 2012）和《自然》（Wedemeyer-Böhm et al. 2012）上发表了两篇专注于太阳龙卷风不同方面的论文。对两个事件的详细案例研究表明，它们是旋转的垂直磁结构，可能是由光球层中的底层涡旋流驱动的。它们通常作为一个群体存在，并与暗条/日珥有关，这是另一种重要的太阳现象，其形成和喷发仍然是个谜。太阳龙卷风可能在供应质量和扭曲的细丝方面发挥着独特的作用。这些发现可能为丝状体的形成和喷发提供新的解释。
英文摘要：
Solar magnetized "tornadoes", a phenomenon discovered in the solar atmosphere, appear as tornado-like structures in the corona but root in the photosphere. Like other solar phenomena, solar tornadoes are a feature of magnetized plasma and therefore differ distinctly from terrestrial tornadoes. Here we report the first analysis of solar "tornadoes" {Two papers which focused on different aspect of solar tornadoes were published in the Astrophysical Journal Letters (Li et al. 2012) and Nature (Wedemeyer-Böhm et al. 2012), respectively, during the revision of this Letter.}. A detailed case study of two events indicates that they are rotating vertical magnetic structures probably driven by underlying vortex flows in the photosphere. They usually exist as a group and relate to filaments/prominences, another important solar phenomenon whose formation and eruption are still mysteries. Solar tornadoes may play a distinct role in the supply of mass and twists to filaments. These findings could lead to a new explanation to filament formation and eruption.
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