Flare parameters for the 7 September, 1973 two-ribbon flare

Details Flare parameters for the 7 September, 1973 two-ribbon flare Flare parameters for the 7 September, 1973 two-ribbon flare

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...90...97d&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 90, Jan. 1984, p. 97-110. Research supported by the Smithsonian Institution.

Physics

19

Coronal Loops, Solar Flares, Solar Spectra, Solar Temperature, Ultraviolet Spectra, Electron Density (Concentration), Energy Dissipation, Gas Pressure, Plasma Cooling, Radiant Cooling, Solar Electrons

Scientific paper

A study is made of the relative importance of the various energy loss mechanisms for the long-decay event of September 7, 1973, using spectral scans in the 400 A-1335 A range. This spectral range contains many of the important electron density and temperature diagnostic line ratios for the solar transition zone. Earlier analyses of the flare energy budget are refined, using more detailed emission measure curves and density diagnostics. The constant pressure assumptions used in both coronal loop models and in the interpretation of observations in terms of flare energetics are examined. It is found that much of the upper transition region emission originates in cooling loops. Radiative losses are found to dominate.

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