Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia
Magdalena D. Christova
Department of Applied Physics, Technical University of Sofia, 1000 Sofia, Bulgaria
Sylvie Sahal-Bréchot
LERMA (Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphère) Observatoire de Paris, Université PSL (Paris Sciences & Lettres), CNRS (Centre National de la Recherche Scientifique), Sorbonne Université, F-92190 Meudon, France
Stark broadening parameters, line widths and shifts, for 15 N VI multiplets are calculated using semiclassical perturbation theory for temperatures from 50,000 K to 2,000,000 K, and perturber density of 1016 cm−3. As perturbers have been taken electrons, protons and He III ions (alpha particles), which are of interest particularly for white dwarfs. Moreover, B III, B IV, B V and B VI ions have been taken as well, due to their significance for proton-boron fusion investigations. An example of the importance of Stark broadening in comparison with thermal Doppler broadening in atmospheres of spectral class DO white dwarfs is also presented. The obtained results are of interest particularly for white dwarf atmospheres modelling and analysis and synthesis of their spectra as well as for laser driven plasma in proton-boron fusion investigations.
