Oscillator strengths and collision strengths for S IV

Details Oscillator strengths and collision strengths for S IV Oscillator strengths and collision strengths for S IV

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..368b&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Aug. 15, 1980, p. 368-373.

Astronomy and Astrophysics

Astrophysics

21

Atomic Energy Levels, Atomic Excitations, Sulfur Isotopes, Transition Probabilities, Fine Structure, Ground State, Molecular Orbitals, Wave Functions

Scientific paper

Collision strengths for S IV for excitation between the fine structure levels of the 3s(2) 3p for ground state and excited states 3s3p(24)P, 2D, 2P, and 2S are calculated in two-state and five-state close-coupling approximations for the energy range 1.3-6.0 R. Configuration-interaction target wave functions which gave oscillator strengths accurate to 10% are used in the expansion. Comparison with beam-foil experimental data is good. It is concluded that use of elaborate wave functions is more important than the choice of the scattering approximation.

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