Vertical Structure of Hard X-ray Sources in Solar Flares
Hard X-ray images of unbiasedly sampled ten flares, which occurred near the solar limb and were observed with the Hard X-ray Telescope (HXT) aboard Yohkoh during the period from October, 1991 to September, 1993, are analyzed in detail to investigate the vertical structure of hard X-ray sources. From temporal, spectral, and structural behaviors derived from series of images, it is found that hard X-ray sources are classified into three types: ``(double) footpoint source(s)'', ``loop-top impulsive source'', and ``loop-top gradual source''. Characteristics of these components, as well as their interpretation, are discussed.
Proceedings of Kofu Symposium
- Pub Date:
- July 1994