On the Stark broadening of Cr VI spectral lines in astrophysical plasma

23rd International Conference on Spectral Line Shapes

Dimitrijevi, M.S.^1,2 ; Simi, Z.^1 ; Sahal-Bréchot, S.^2

Astronomical Observatory, Volgina 7, Belgrade 74

11160, Serbia^1

LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universities, UPMC Univ. Paris 06, 5 Place Jules Janssen, Meudon Cedex

92195, France^2

关键词: Astrophysical plasma;    Data centers;    Dwarf atmospheres;    Perturbation method;    Proton impact;    Spectral line;    Stark broadenings;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012021/pdf
DOI  :  10.1088/1742-6596/810/1/012021

来源: IOP

【 摘 要 】

Stark broadening parameters for Cr VI lines have been calculated using semiclassical perturbation method for conditions of interest for stellar plasma. Here are presented, as an example of obtained results, Stark broadening parameters for electron- and proton-impact broadening for Cr VI 4s2S-4p2P°λ = 1430 Å and Cr VI 4p2P°-5s2S λ = 611.8 Å multiplets. The obtained results are used to demonstrate the importance of Stark broadening of Cr VI in DO white dwarf atmospheres. Also the obtained results will enter in STARK-B database which is included in Virtual Atomic and Molecula Data Center - VAMDC.