A Study of Major Flares Observed by YOHKOH
Abstract
The author has studied hard and soft X-ray images for some 130 flares observed by Yohkoh. The sample covers events with wide ranges of intensity, duration and hardness (in terms of hard X-ray spectra). It is found to be difficult to identify a simple soft X-ray loop whose footpoints coincide with hard X-ray emission. Instead, a large fraction of the flares studied show soft X-ray ejecta and a high-temperature area outside the bright flare loop, as predicted by reconnection models.
- Publication:
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Astronomical Society of the Pacific Conference Series
- Pub Date:
- 1996
- Bibcode:
- 1996ASPC..111..156N
- Keywords:
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- Solar Flares: X-Ray Surveys