A comparison of theoretical CIV emission line strengths with active region observations obtained with the solar EUV rocket telescope and spectrograph (SERTS)

Details A comparison of theoretical CIV emission line strengths with active region observations obtained with the solar EUV rocket telescope and spectrograph (SERTS) A comparison of theoretical CIV emission line strengths with active region observations obtained with the solar EUV rocket telescope and spectrograph (SERTS)

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..144...69k&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 144, no. 1, p. 69-74.

Physics

11

Electron Transitions, Emission Spectra, Line Spectra, Solar Radiation, Solar Spectra, Ultraviolet Emission, Extreme Ultraviolet Radiation, Ultraviolet Spectra

Scientific paper

Theoretical line ratios involving 2s 2S - 3p 2P, 2p 2p - 3s 2S, and 2p 2S - 3d 2D transitions in C IV between 312 and 420 A are presented. A comparison of these with solar active region observational data obtained during a rocket flight by the Solar EUV Rocket Telescope and Spectrograph (SERTS) reveals good agreement between theory and experiment, with discrepancies that average only 22 percent. This provides experimental support for the accuracy of the atomic data adopted in the line ratio calculations, and also resolves discrepancies found previously when the theoretical results were compared with solar data from the S082A instrument on board Skylab. The potential usefulness of the C IV line ratios as electron temperature diagnostics for the solar transition region is briefly discussed.

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