Stark broadening of spectral lines of multicharged ions of astrophysical interest

Abstract

Using a semiclassical perturbation approach, we have calculated electron-, pro ton-, and He III- im pact line widths and shifts for 14 O VII and 18 Mg XI multiplets. For O VII, perturber densities are 10 17 - 10 23 cm -3 and temperatures K. For Mg XI, perturber densities are 10 18 - 10 24 cm -3 and temperatures K. For lower perturber densities, the Stark broadening parameters are proportional to the perturber density.