S V line ratios in the sun

Details S V line ratios in the sun S V line ratios in the sun

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..448d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 1, 1986, p. 448-452. SERC-NASA-supported research.

Astronomy and Astrophysics

Astronomy

5

Line Spectra, Solar Spectra, Sulfur, Ultraviolet Astronomy, Collision Rates, Electron Density (Concentration), Electron Impact, Proton Impact

Scientific paper

In the present prediction of level populations and emission line intensity ratios for electron densities and temperatures appropriate to the sun, on the basis of new atomic data for S V, the electron impact collision rates for spin-forbidden transitions, and the intercombination transition spontaneous radiative rate, are noted to be substantially larger than previously ascertained. The S V intensity ratio is shown to be a useful electron density diagnostic for log N(e) greater than 11.5 ratios deduced from observations obtained with a slit spectrograph aboard Skylab generally agree with the theoretical values presented.

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