https://doi.org/10.1140/epjd/s10053-021-00149-w
Regular Article - Plasma Physics
Impact of Stark broadening on Co II spectral line modelling in hot stars
1
Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh, Saudi Arabia
2
Astronomical Observatory, Volgina 7, 11060, Belgrade 38, Serbia
3
GRePAA, INSAT, Centre Urbain Nord, University of Carthage, Tunis, Tunisia
4
Sorbonne Université, Observatoire de Paris, Université PSL, CNRS, LERMA, F-92190, Meudon, France
5
Institute of Physics Belgrade, University of Belgrade, P.O. Box 57, 11001, Belgrade, Serbia
Received:
30
January
2021
Accepted:
9
April
2021
Published online:
27
April
2021
The neglecting of Stark broadening in analysis and synthesis of hot stars spectra in some cases could cause errors in abundance determination. We analysed Co II lines in the spectrum of 
Lupi and found two well-isolated and strong lines (
2022.354, 2027.040 Å) suitable for the investigation of influence of Stark broadening. Since the results for both lines are qualitatively the same, we will discuss only for one of them. Comparisons of synthetic lines with and without taking of Stark broadening into consideration, in the case of the Lupi star and for the Co II lines, show that even when Stark width is negligible in comparison with Doppler width, Stark broadening may influence line wings.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
