Theoretical atomic structure and electron scattering data for ions in the nitrogen isoelectronic sequence - MG VI, SI VIII, S X, A XII and CA XIV

Details Theoretical atomic structure and electron scattering data for ions in the nitrogen isoelectronic sequence - MG VI, SI VIII, S X, A XII and CA XIV Theoretical atomic structure and electron scattering data for ions in the nitrogen isoelectronic sequence - MG VI, SI VIII, S X, A XII and CA XIV

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.190..925b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 190, Mar. 1980, p. 925-929. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

61

Atomic Structure, Electron Scattering, Isoelectronic Sequence, Metal Ions, Atomic Energy Levels, Calcium, Equilibrium Equations, Magnesium, Silicon, Solar Atmosphere, Solar Spectra, Sulfur, Ultraviolet Spectra

Scientific paper

Intermediate coupling energy levels, oscillator strengths and electron collision strengths have been computed for the configurations 2s22p3, 2s2p4 of Mg VI, Si VIII, S X, Ax II and Ca XIV. The electron scattering problem was solved using the "distorted wave" approximation. The statistical equilibrium equations for level populations were solved including all relevant excitation and de-excitation mechanisms. The level populations for the ground configuration and theoretical intensity ratios for the UV spectral lines are tabulated for conditions appropriate to the solar atmosphere.

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