Linhui Sui Submitted: 28-Aug-2003 12:32
We investigate X-ray evidence for the formation of large-scale current sheets in three flares observed by the Ramaty High Energy Solar Spectroscopic Imager (RHESSI) on 2002 April 14, 15 and 16 in NOAA region 9901 at the northwest limb. RHESSI images show clear flare loops and a separate coronal source above these loops in all three flares. The height of the loops decreased in the first few minutes during the impulsive rise in hard X-ray (> 25 keV), then increased with time. We are seeking a physics explanation of the RHESSI obsevations.
Participants: Linhui Sui, Gordon D. Holman , Brian R. Dennis
|