A&A Supplement series, Vol. 129, April I 1998, 155-156

Received August 18; accepted September 3, 1997

Stark broadening of spectral lines of multicharged ions of astrophysical interest

XVIII. Si XI and Si XIII spectral lines

M.S. Dimitrijevic - S. Sahal-Bréchot

Send offprint request: M.S. Dimitrijevic

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

Abstract:

Using a semiclassical perturbation approach, we have calculated electron-, proton-, and He III-impact 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.

keywords: lines: profile -- atomic data -- plasmas

• 1. Introduction
• 2. Results and discussion
• References