衰减活动区及其周围的精细尺度磁场
Fine Scale Magnetic Fields in and around a Decaying Active Region
摘要：
用衍射极限分光偏振仪对一个衰减斑进行了高空间分辨率的分光偏振观测。获得的空间分辨率接近衍射极限（0。“邓恩太阳望远镜”。研究了衰减活动区内部以及周围区域的细鳞。观察到两个有趣的现象：（i）冠状结构可能存在于本影点以及光桥中，为无场入侵提供证据;（ii）在斑点外部存在相反的极性环，其中一些连接到主斑点和周围的磁性特征。
英文摘要：
High spatial resolution spectro-polarimetric observation of a decaying spot was observed with the Diffraction Limited Spectro-Polarimeter. The spatial resolution achieved was close to the diffraction limit (0."18) of the Dunn Solar Telescope. The fine scales present inside the decaying active region as well as surrounding areas were studied. Two interesting phenomenon observed are: (i) Canopy like structures are likely to be present in the umbral dots as well as in the light bridges providing evidence for field-free intrusion, (ii) There are opposite polarity loops present outside of the spot and some of them connects to the main spot and the surrounding magnetic features.
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