Stark broadening of spectral lines of multicharged ions of astrophysical interest^*

XVIII. Si XI and Si XIII spectral lines

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

Send offprint request to: M.S. Dimitrijević

Received: 18 August 1997
Accepted: 3 September 1997

Abstract

Using a semiclassical perturbation approach, we have calculated electron-, pro ton-, and He III- im pact line widths and shifts for 4 Si XI multiplets for perturber densities 10¹⁸- 10²³ cm^-3 and temperatures K, and for 61 Si XIII multiplets for perturber densities 10¹⁶- 10²³ cm^-3 and temperatures K. For lower perturber densities, obtained results are linear with perturber density.