Astron. Astrophys. Suppl. Ser. 133, 227-228

Stark broadening of spectral lines of multicharged ions of astrophysical interest

XXII. K VIII and K IX spectral lines

M.S. Dimitrijevic¹ and S. Sahal-Bréchot²

Send offprint request: M.S. Dimitrijevic

1 - Astronomical Observatory, Volgina 7, 11050 Belgrade, Yugoslavia
2 - Laboratoire "Astrophysique, Atomes et Molécules", Département Atomes et Molécules en Astrophysique, Unité associée au CNRS 812, Observatoire de Paris-Meudon, 92190 Meudon, France

Received June 3; accepted June 4, 1998

Abstract:

By using the semiclassical-perturbation formalism, we have calculated electron-, proton-, and He III-impact line widths and shifts for 4 K VIII and 30 K IX multiplets, of interest for analysis, investigation and modeling of different plasmas in solar and stellar subphotospheric layers research and plasma physics. The obtained results are presented as a function of temperature and perturber density. Results are compared with other theoretical estimates, based on regularities and systematic trends.

Key words: lines: profile-atomic data