Theoretical NeIX line ratios compared to solar observations

Details Theoretical NeIX line ratios compared to solar observations Theoretical NeIX line ratios compared to solar observations

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...94...85k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 94, Aug. 1984, p. 85-89. Research supported by the Science and Engineering Research Council

Physics

14

Electron Transitions, Line Spectra, Neon, Solar Spectra, Collision Rates, Electron Density (Concentration), Electron Energy, Electron Impact, Excitation, Plasma Diagnostics

Scientific paper

R-matrix calculations of the 11S-23S and 11S-23P electron excitation rates in He-like C V, O VII, and Mg XI by Kingston and Tayal are used to interpolate results for Ne IX. Adoption of these in emission line strength calculations leads to values for the density-sensitive R ratio very similar to those of Pradhan et al. and Wolfson et al., although the temperature-sensitive G ratios are approximately 10 to 20% lower than those deduced by these authors. However the present theoretical value of G at the temperature of maximum Ne IX emission is in excellent agreement with those observed by the SMM and P78-1 satellites for the 1980, November 5 flare and nonflaring active regions.

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