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学科：天体物理. 空间物理学. 等离子体物理
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[Title] Comparison of the Coronal Green-line Intensities with the EUV Measurements from SDO/AIA
影响因子：2.8
DOI码：10.1088/1674-4527/ac712e
教研室：天体物理
发表刊物：Research in Astronomy and Astrophysics
关键字：Sun: corona;Sun: magnetic fields;stars: coronae
摘要：The intensity of the green line (Fe XIV 5303 Å) is the strongest in the visible spectrum of the solar corona and has long been used as a powerful diagnostic tool for coronal configurations and plasma dynamics. Using coronal green-line data from the Lijiang YOGIS Lyot coronagraph together with EUV observations from the Solar Dynamics Observatory/Atmospheric Imaging Assembly,this study performs direct comparisons of intensity distributions for different coronal structures. Two algorithms are developed to extract features in the low corona. The results show that,among the EUV wavelengths analyzed,the intensity correlation between the green line and the 211 Å channel is consistently the strongest for different structures and limb locations,with correlation coefficients ranging from 0.89 to 0.99. This finding provides a promising way to link ground-based coronal green-line observations with space-based EUV measurements.
合写作者：Liu Y,Zhao MY,Liu JH,Elmhamdi A,Song TF,Li ZH,Li HB,Sha FY,Wang JX,Li XB,Shen YD,Liu SQ,Liang HF,Al-Shammari RM
第一作者：Zhang XF
论文编号：035
学科门类：理学
一级学科：天文学
卷号：22
期号：7
页面范围：id.075012, 15 pp.
ISSN号：1674-4527
是否译文：否
发表时间：2022-07-14