Direct Measurement of AIA 171 Coronal Loop Transparency
Direct Measurement of AIA 171 Coronal Loop Transparency
复制标题
AIA 171 冠状环透明度的直接测量
DOI：
10.3847/1538-4357/ac7da5
复制
发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Runze Guo
中科院分区：
文献类型：
--
作者：
Hongbo Li;Hengqiang Feng;Zhanjun Tian;Xuefei Zhang;Jihong Liu;Guoying Zhao;Yan Zhao;Hao Cai;Yuanxi Liang;Runze Guo
观测表明，日冕环不应该是完全透明的。尽管冠状动脉袢的透明度在冠状动脉诊断中起着关键作用，但它很少被研究。在这里，我们提出了一个原始的研究，直接从视觉上相交的日冕环辐射的大气成像组件171日冕环的透明度，这强烈表明日冕环可能对171 Å辐射有明显的不透明度，因此至少对某些日冕线来说不应该是光学薄结构。我们认为这一结果不仅有助于解释日冕环的一些基本观测特征，而且为基于辐射的诊断提供了新的线索。
Observations suggest that coronal loops should not be completely transparent. The transparency of coronal loops is rarely investigated in spite of its key role in coronal diagnostics. Here, we present an original investigation of Atmospheric Imaging Assembly 171 coronal loop transparency directly from the radiation of visually intersecting coronal loops, which strongly indicates that the coronal loops may have significant opaqueness on the 171 Å radiation, and therefore should not be optical thin structures at least for some coronal lines. We suggest that this result may not only be helpful for explaining some basic observational features of coronal loops, but also in bringing new clues to the radiation-based diagnostics.