小尺度通量浮现事件期间Ca II H线色球增亮的HINODE观测
HINODE Observations of Chromospheric Brightenings in the Ca II H Line during small-scale Flux Emergence Events
摘要：
\ion{Ca}{2} H辐射是太阳和其他恒星磁场活动的一个著名指标。它也被认为是色球加热的重要标志。然而，\ion{Ca}{2} H线还没有被用来作为一个诊断的磁通量出现从太阳内部。在这里，我们报告日出观测色球\ion{Ca}{2} H增亮与一个重复的，小规模的通量出现事件。我们描述了这一过程，并调查的磁通量，G带亮度，和\ion{Ca}{2} H强度的新兴区域的演变。我们的研究结果表明，能量释放的色球层之间的相互作用的结果，新兴的通量和预先存在的磁场，在最近的三维数值模拟。
英文摘要：
\ion{Ca}{2} H emission is a well-known indicator of magnetic activity in the Sun and other stars. It is also viewed as an important signature of chromospheric heating. However, the \ion{Ca}{2} H line has not been used as a diagnostic of magnetic flux emergence from the solar interior. Here we report on Hinode observations of chromospheric \ion{Ca}{2} H brightenings associated with a repeated, small-scale flux emergence event. We describe this process and investigate the evolution of the magnetic flux, G-band brightness, and \ion{Ca}{2} H intensity in the emerging region. Our results suggest that energy is released in the chromosphere as a consequence of interactions between the emerging flux and the pre-existing magnetic field, in agreement with recent 3D numerical simulations.
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