Physics
Scientific paper
Oct 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978soph...59..373w&link_type=abstract
Solar Physics, vol. 59, Oct. 1978, p. 373-376. Research supported by the Lockheed Independent Research Program;
Physics
1
Emission Spectra, Solar Flares, Solar Spectra, Solar X-Rays, X Ray Spectra, Plasma Radiation, Radiant Flux Density
Scientific paper
It is suggested that the apparent emission dip found in soft X-ray flare observations, interpreted as the emission from a single temperature plasma, is an artifact. According to this hypothesis, the flare phenomenon represents a combination of flare plus a stable active region plasma. A small amount of hot flare plasma will dominate the total emission, and the calculated isothermal plasma parameters will trend towards those of the hot flare plasma, so that a decrease in emission measure will be inferred. It is claimed that observed data fit the model of a stable plasma plus a flare plasma better than it does the model of a single plasma, in accordance with a chi square statistic. The model of stable plasma plus flare plasma is also supported by the observation that the plasma parameters in the postflare condition are indistinguishable from those during preflare.
Acton Loren W.
Datlowe Dayton W.
Wolfson Jacob C.
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