NE V line ratios in the EUV spectra of solar flares

Details NE V line ratios in the EUV spectra of solar flares NE V line ratios in the EUV spectra of solar flares

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...389..440k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 389, April 10, 1992, p. 440-442. Research supported by SERC, Department of

Astronomy and Astrophysics

Astrophysics

4

Extreme Ultraviolet Radiation, Line Spectra, Neon, Solar Flares, Solar Spectra, Ultraviolet Spectra, Electron States, Electronic Spectra, Emission Spectra, Fine Structure, Skylab Program

Scientific paper

Theoretical line ratios involving 2s22p2-2s2p3 transitions in Ne V between 359 and 572 A are presented. A comparison of these with solar-flare observational data from the spectrograph on board Skylab reveals excellent agreement between theory and experiment, with discrepancies that average only 8 percent. This provides experimental support for the accuracy of the atomic data adopted in the line-ratio calculations, and in addition resolves discrepancies between theory and observations previously found for this species. The potential usefulness of the Ne V line ratios as electron temperature diagnostics for the solar transition region is briefly discussed.

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