Stark profiles of infrared helium lines

Abstract

We have calculated Stark widths and shifts of some infrared helium lines that are missing and that are important for modellisation of the atmospheres of hot early-type stars. These calculations are based on the impact and quasistatic theory and semi-classical approximation. The provided data are displayed for a grid of temperatures (104 to 105 K) and electron densities (1010 to 1013 cm-3) typical of hot early-type stars. We also discuss the conditions of use of our data for astrophysical purposes.