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      https://www.ias.ac.in/article/fulltext/joaa/036/04/0661-0669

    • Keywords

       

      Stark broadening; atomic data; line: profiles; O I.

    • 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 1016 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.

    • Author Affiliations

       

      N. Alonizan1 R. Qindeel1 N. Ben Nessib1 S. Sahal-Bréchot2 Milan S. Dimitrijević2 3 4

      1. Department of Physics and Astronomy, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia.
      2. LERMA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 5 Place Jules Janssen, 92195 Meudon Cedex, France.
      3. Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia.
      4. IHIS Techno Experts, Bežanijski put 23, 11080 Belgrade-Zemun, Serbia.
    • Dates

       
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