Periodic Variations in the Coronal Green Line Intensity and their Connection with the White-light Coronal Structures

Journal of astrophysics and astronomy

Milan Minarovjech1¹  Vojtech Rusin¹  Milan Rybansky¹ 

[1] Astronomical Institute of the Slovak Academy of Sciences, 05960 Tatranska Lomnica, Slovak Republic.$$

关键词: Sun;    solar corona;    5 min variations;    solar activity.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

We present an analysis of short time-scale intensity variations in the coronal green line as obtained with high time resolution observations. The observed data can be divided into two groups. The first one shows periodic intensity variations with a period of 5 min. the second one does not show any significant intensity variations. We studied the relation between regions of coronal intensity oscillations and the shape of whitelight coronal structures. We found that the coronal green-line oscillations occur mainly in regions where open white-light coronal structures are located.

【 授权许可】

Unknown