Computer Science
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994kofu.symp..221z&link_type=abstract
In: Proceedings of Kofu Symposium, Kofu, Japan, Sept. 6-10, 1993, p.221-224.
Computer Science
1
Scientific paper
We apply a DC-electric field model to the analysis of soft and hard X-ray observations of a solar flare observed by Yohkoh and the Compton Gamma-Ray Observatory on 1992 September 6. The flare was observed in Ca XIX by the Yohkoh Bragg Crystal Spectrometer (BCS) and simultaneously in hard X-rays by the CGRO Burst and Transient Spectrometer Experiment (BATSE). A strong stationary component of Ca XIX emission was observed at the start of impulsive hard X-ray emission indicating an extended phase of heating prior to the production of energetic nonthermal electrons. We interpret the preflare Ca XIX emission as a signature of Joule heating by field-aligned currents. We relate the temporal variation of impulsive hard X-ray emission to the rate of runaway electron acceleration in the same DC-electric field.
Dennis Brian R.
Mariska John T.
Zarro Dominic
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