Observations of two quiescent filaments show oscillatory variations in Doppler shift and central intensity of the He I 210830 A. line. The oscillatory periods range from about 5 to 15 rain, with dominant periods of 5, 9, and 16 rain. The 5-min period is also detected in the intensity variations, af
✦ LIBER ✦
Vertical velocities and oscillations in quiescent filaments
✍ Scribed by Zhang Yi; Oddbjørn Engvold
- Book ID
- 104644735
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 511 KB
- Volume
- 134
- Category
- Article
- ISSN
- 0038-0938
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