Stark Broadening Parameters for Neutral Oxygen Spectral Lines |
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| Authors: | N Alonizan R Qindeel N Ben Nessib S Sahal-Bréchot Milan S Dimitrijevi? |
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| Institution: | 1.Department of Physics and Astronomy, College of Science,King Saud University,Riyadh,Saudi Arabia;2.LERMA, Observatoire de Paris,PSL Research University, CNRS, Sorbonne Universités,Meudon Cedex,France;3.Astronomical Observatory,Belgrade,Serbia;4.IHIS Techno Experts,Belgrade-Zemun,Serbia |
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| Abstract: | Stark broadening parameters for nine neutral oxygen (O I) lines have been determined within the impact approximation and the semiclassical perturbation method. The atomic data have been taken from the TOPbase and NIST atomic databases. The electron and proton Stark widths and shifts and ion broadening parameter values for these O I lines have been calculated for electron density of 10 16 cm ?3 and for 4 different electron temperatures in the range of 5000 K to 40000 K. These Stark broadening parameters are compared with our previous results (Ben Nessib, N. et al. 1996, Physica Scripta, 54, 603–613), where we calculated Stark broadening parameters for only four O I spectral lines and where Stark widths and shifts were compared with experimental and theoretical data available in the literature. In the present paper, we have also compared our results with the Griem’s book (Griem, H. R. 1974, Spectral line broadening by plasmas) and VALD (Ryabchikova, T. et al. 2015, Physica Scripta, 90, 054005) values. |
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