Thermal evolution of flare plasma

Details Thermal evolution of flare plasma Thermal evolution of flare plasma

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983soph...86..107w&link_type=abstract

(Japan Society for the Promotion of Science and National Science Foundation, U.S.-Japan Seminar on the Recent Advances in the Un

Physics

9

High Temperature Plasmas, Solar Electrons, Solar Flares, Solar X-Rays, Thermal Plasmas, Electron Beams, Electron Energy, Energy Transfer, Plasma Heating, Solar Spectra, Solar Temperature, X Ray Spectra

Scientific paper

The evolution of hot thermal plasma in solar flares is investigated using a single-temperature model applied to continuum emission in the E = 5-13 keV spectral range. Results show a general trend in which the thermal plasma observed in the soft X rays is heated by the nonthermal electrons that emit as the hard X-ray bursts. This general trend is found to be confirmed by the observation of an electron temperature increase at the interval of hard X-ray spikes and a quantitative comparison between thermal energy content and hard X-ray energy input. It is suggested that nonthermal electrons between 10 keV and 30 keV energy may play an important role in pre-burst and post-burst phases.

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