Stark Broadening of Al IV Spectral Lines

Abstract

Stark widths for 23 transitions in Al IV have been calculated by employing the modified semiempirical method. The results are obtained for an electron density of 1017 cm−3 and temperatures from 10,000 K to 160,000 K. The results obtained in this investigation are used for the examination of the influence of Stark broadening in Al IV stellar spectra, as well as to check the Stark width regular behavior and similarites within the Al IV spectrum.

Keywords

• Stark broadening
• Al IV
• line profiles
• atomic data
• atomic processes
• line formation