Oscillations in the Coronal Green-Line Intensity Observed at Lominický Stít and Norikura Nearly Simultaneously

We studied intensity oscillations of the coronal green line ([Fexiv] 530.3 nm) observed with two coronagraphs at Lomnický Stít and Norikura nearly simultaneously. In the spectroscopic data obtained at Norikura, we have detected and confirmed the earlier detection of 5-minute oscillations in photoele...

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Bibliographic Details
Published in:Solar physics 2003-04, Vol.213 (2), p.269
Main Authors: Minarovjech, Milan, Rusin, Vojtech, Rybanský, Milan, Sakurai, Takashi, Ichimoto, Kiyoshi
Format: Article
Language:English
Subjects:
Corona
Photometers
Solar physics
Studies
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Summary:We studied intensity oscillations of the coronal green line ([Fexiv] 530.3 nm) observed with two coronagraphs at Lomnický Stít and Norikura nearly simultaneously. In the spectroscopic data obtained at Norikura, we have detected and confirmed the earlier detection of 5-minute oscillations in photoelectric photometer observations made at Lomnický Stít. Quasi-periodic structures in the green-line intensity with a tangential speed up to 400 km s^sup -1^ have been detected for the first time. We briefly discuss the implications of these oscillations on the coronal heating mechanisms.[PUBLICATION ABSTRACT]
ISSN:0038-0938
1573-093X
DOI:10.1023/A:1023938732756