Periodic variations in the coronal green line intensity and their connection with the white-light coronal structures |
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| Authors: | Milan Minarovjech Milan Rybanský Vojtech Ru&#x;in |
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| Institution: | (1) Astronomical Institute of the Slovak Academy of Sciences, 05960 Tatranská Lomnica, Slovak Republic |
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| Abstract: | 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 white-light coronal structures. We found that the coronal green-line oscillations
occur mainly in regions where open white-light coronal structures are located. |
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| Keywords: | Sun solar corona 5 min variations solar activity |
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