Abstract
The influence of Stark broadening in ionized chromium spectral lines observed in stellar atmospheres of Ap stars is considered. We have calculated the fitting coefficients of these lines and used them to compare Stark broadening and thermal Doppler widths for the conditions in the atmosphere of the Ap-star HD 188041. We also studied the influence of the Stark broadening on a synthetic profile of a line in the spectrum of this star.
Graphic abstract