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Ellerman bombs observed with the new vacuum solar telescope and the atmospheric imaging assembly onboard the solar dynamics observatory
Chen, Yajie1; Tian, Hui1; Xu Z(徐稚)2; Xiang YY(向永源)2; Fang YL(方玉亮)2; Yang, Zihao1
发表期刊Geoscience Letters
2017-12-12
卷号4期号:1
DOI10.1186/s40562-017-0096-1
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摘要

Ellerman bombs (EBs) are believed to be small-scale reconnection events occurring around the temperature minimum region in the solar atmosphere. They are often identified as significant enhancements in the extended Hα wings without obvious signatures in the Hα core. Here we explore the possibility of using the 1700 Å images taken by the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) to study EBs. From the Hα wing images obtained with the New Vacuum Solar Telescope (NVST) on 2015 May 2, we have identified 145 EBs and 51% of them clearly correspond to the bright points (BPs) in the AIA 1700 Å images. If we resize the NVST images using a linear interpolation to make the pixel sizes of the AIA and NVST images the same, some previously identified EBs disappear and about 71% of the remaining EBs are associated with BPs. Meanwhile, 66% of the compact brightenings in the AIA 1700 Å images can be identified as EBs in the Hα wings. The intensity enhancements of the EBs in the Hα wing images reveal a linear correlation with those of the BPs in the AIA 1700 Å images. Our study suggests that a significant fraction of EBs can be observed with the AIA 1700 Å filter, which is promising for large-sample statistical study of EBs as the seeing-free and full-disk SDO/AIA data are routinely available.

语种英语
学科领域天文学
学科门类理学 ; 理学::天文学
文章类型Article
出版者Springer International Publishing
ISSN2196-4092
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WOS记录号BMC:10.1186/s40562-017-0096-1
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/18059
专题抚仙湖太阳观测站
通讯作者Tian, Hui
作者单位1.School of Earth and Space Sciences, Peking University, Beijing 100871, China
2.Yunnan Observatories, Chinese Academy of Sciences, 396 Yangfangwang, Guandu District, Kunming 650216, China
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Chen, Yajie,Tian, Hui,Xu Z,et al. Ellerman bombs observed with the new vacuum solar telescope and the atmospheric imaging assembly onboard the solar dynamics observatory[J]. Geoscience Letters,2017,4(1).
APA Chen, Yajie,Tian, Hui,Xu Z,Xiang YY,Fang YL,&Yang, Zihao.(2017).Ellerman bombs observed with the new vacuum solar telescope and the atmospheric imaging assembly onboard the solar dynamics observatory.Geoscience Letters,4(1).
MLA Chen, Yajie,et al."Ellerman bombs observed with the new vacuum solar telescope and the atmospheric imaging assembly onboard the solar dynamics observatory".Geoscience Letters 4.1(2017).
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