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2017•Journal of Physics Conference SeriesOpen access

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

M. S. Dimitrijević, Zoran Simić, Sylvie Sahal-Bréchot

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Abstract

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 4s 2 S-4p 2 P ° λ = 1430 Å and Cr VI 4p 2 P ° -5s 2 S 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.

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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 4s 2 S-4p 2 P ° λ = 1430 Å and Cr VI 4p 2 P ° -5s 2 S 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.

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Available abstract

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 4s 2 S-4p 2 P ° λ = 1430 Å and Cr VI 4p 2 P ° -5s 2 S 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.

Key concepts: Stark effect, Atomic physics, Semiclassical physics, Plasma, White dwarf, Spectral line, Physics, Doppler broadening

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