Distorted wave collision strengths for n-n(prime) transitions in hydrogenic ions

Details Distorted wave collision strengths for n-n(prime) transitions in hydrogenic ions Distorted wave collision strengths for n-n(prime) transitions in hydrogenic ions

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...354..382c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 354, May 1, 1990, p. 382-386. Research sponsored by DOE.

Astronomy and Astrophysics

Astrophysics

1

Collisional Plasmas, Electron Transitions, Hydrogen Ions, Wave Interaction, Atomic Excitations, Electron Energy, Electron Impact, Transition Probabilities

Scientific paper

Distorted wave collision strengths have been calculated for n-n(prime) transitions in hydrogenic ions with n-n(prime) of 3-4, 3-5, 5-6, 5-7, 7-8, and 7-9. Nuclear charge numbers Z were 3, 10, and 26. For each transition at each Z, the energies, in threshold units, were 1.01, 1.2, 1.5, 1.9, 2.5, 4.0, 6.0, 10.0 and 15.0. These collision strengths should be useful in testing various semiempirical formulas for electron impact excitation collision strengths needed in plasma modeling codes. Comparison is made with two such formulas.

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