Physics
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..20.2333h&link_type=abstract
Advances in Space Research, Volume 20, Issue 12, p. 2333-2336.
Physics
1
Scientific paper
Yohkoh has observed many long duration events permitting a statistical study of the properties of these interesting events. We have selected ten flares for analysis which have durations between 5 and 20 hours, and size ranging from C to X GOES class. Employing the Soft X-ray Telescope, the Bragg Crystal Spectrometer, GOES spacecraft, and ground-based H_alpha data, we examine the morphology, temperature, emission measure, location of the hard X-ray source, non-thermal velocities and upflows of the plasma at different stages in the flare development. Our results are used to address the question of the energy source that maintains the hot plasma at temperatures of several million degrees for many hours.
Akioka Maki
Harra-Murnion Louise K.
Helsdon Stephen F.
Phillips Kenneth J. H.
Plunkett Simon P.
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