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arXiv · 1311.1054

The OIV 1407.3\AA /1401.1\AA\ emission-line ratio in a plasma

Nabil Ben Nessib·Norah Alonizan·Rabia Qindeel·Sylvie Sahal-Bréchot·Milan S. Dimitrijević
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Abstract

Line ratio of O IV 1407.3 \AA/1401.1 \AA\- is calculated using mostly our own atomic and collisional data. Energy levels and oscillator strengths needed for this calculation have been calculated using a Hartree-Fock relativistic (HFR) approach. The electron collision strengths introduced in the statistic equilibrium equations are fitted by polynomials for different energies. Comparison has also been made with available theoretical results. The provided line ratio has been obtained for a set of electron densities from $10^{8}$ cm$^{-3}$ to $10^{13}$ cm$^{-3}$ and for a fixed temperature of 50 000 K.

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Nabil Ben Nessib, Norah Alonizan, Rabia Qindeel, Sylvie Sahal-Bréchot, Milan S. Dimitrijević. 2013-11-05. The OIV 1407.3\AA /1401.1\AA\ emission-line ratio in a plasma. https://doi.org/10.1016/j.asr.2013.10.021

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