ON THE STARK BROADENING OF Ar VII SPECTRAL LINES

Milan S. Dimitrijević; Sylvie Sahal-Bréchot

doi:10.5937/univtho7-13884

Milan S. Dimitrijević 1. Astronomical Observatory, Belgrade, Serbia 2. IHIS – Techno Experts, Zemun, Serbia 3. LERMA, Observatoire de Paris,5 Place Jules Janssen, F-92195 Meudon Cedex, France
Sylvie Sahal-Bréchot LERMA, Observatoire de Paris,5 Place Jules Janssen, F-92195 Meudon Cedex, France

DOI: https://doi.org/10.5937/univtho7-13884

Keywords: line profiles, atomic processes, atomic data, Stark broadening,

Abstract

Stark broadening parameters, full width at half maximum of spectral line and shift, have been calculated for 3 spectral lines of Ar VII, for broadening by electron, proton, and He III impacts. For calculations, the semiclassical perturbation approach in the impact approximation has been used. The results are provided for temperatures from 20 000 K to 500 000 K and for an electron density of 10¹⁷ cm^-3. Obtained results will be included in the STARK-B database which is also included in Virtual atomic and molecular data center (VAMDC).

Author Biographies

Milan S. Dimitrijević, 1. Astronomical Observatory, Belgrade, Serbia 2. IHIS – Techno Experts, Zemun, Serbia 3. LERMA, Observatoire de Paris,5 Place Jules Janssen, F-92195 Meudon Cedex, France

Naučni savetnik - Research professor

Sylvie Sahal-Bréchot, LERMA, Observatoire de Paris,5 Place Jules Janssen, F-92195 Meudon Cedex, France

Research Professor Emeritus

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