[68.03] Hard X-ray and White Light Observations of the August 25, 2001 X Flare

AAS 200th meeting, Albuquerque, NM, June 2002
Session 68. Flares
Display, Thursday, June 6, 2002, 9:20am-4:00pm, SW Exhibit Hall

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[68.03] Hard X-ray and White Light Observations of the August 25, 2001 X Flare

T. R. Metcalf, D. Alexander (LMSAL), H. S. Hudson (U.C. Berkeley), D. Longcope (Montana State University), D. Myers (GSFC)

An X5.3 flare occurred about 16:31 UT on 2001 August 25 and was well observed by the Yohkoh and TRACE spacecraft. The flare showed gamma-ray emission, nuclear lines, and was a dramatic white light flare seen in TRACE data. A preliminary analysis of the hard X-ray images from the Yohkoh/HXT instrument shows two clear footpoints and a moving HXR source in this very energetic flare. The moving hard X-ray source appears to move along a magnetic separatrix at 400 km/sec. We will discuss the hard X-ray and white light structure of this flare and discuss the energetics and possible mechanisms for the formation of the TRACE white light emission.

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