Stark broadening of Ba I and Ba II spectral lines

Abstract

Using a semiclassical approach, we have calculated electron-, proton-, and ionized helium-impact line widths and shifts for 14 Ba I and 64 Ba II multiplets for perturber densities 1015 - 1018 cm-3 and temperatures T = 2 500 - 50 000 K for Ba I and 5 000 - 100 000 K for Ba II. The results have been compared with available experimental and theoretical data.