Other
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spd....31.0244s&link_type=abstract
American Astronomical Society, SPD Meeting #31, #02.44; Bulletin of the American Astronomical Society, Vol. 32, p.1290
Other
Scientific paper
Solar flare is one of the most energetic phenomena in the solar corona. Electrons are accelerated and emit hard X-rays in the corona and at the magnetic footpoints. In order to determine the mysterious acceleration process, the study of coronal hard X-ray sources is one of the most important keys. Using the Hard X-ray Telescope (HXT) on board Yohkoh mainly, we analyzed an X1.2 flare which occurred on 1998 April 23. It was located behind the solar limb and we only observe coronal emission. Nevertheless, this flare showed strong hard X-ray emission and we obtained detailed information on the spatial and spectral structure of the coronal hard X-ray sources. Three hard X-ray sources are identified at least. These are different from each other in both their spatial and spectral structure. (1)A thermal (30-40 MK) source is observed in HXT L and M1 bands. It showed a distinct source motion along the top of the soft X-ray arcade-like structure. (2)A non-thermal source is observed in the M2 band. It is also detected at 17/34 GHz with the Nobeyama Radio Heliograph. It shows impulsive time behavior and is located on the edge of the arcade-like structure. (3)A weak source is observed above the strong coronal hard X-ray sources. The source is clearly resolved in the M2 band and extends over ~40 arcsec.
No associations
LandOfFree
Characteristics of Coronal Hard X-ray Sources on 1998 April 23 Flare does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Characteristics of Coronal Hard X-ray Sources on 1998 April 23 Flare, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of Coronal Hard X-ray Sources on 1998 April 23 Flare will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1107545