23rd International Conference on Spectral Line Shapes | |
A modified formula for the Voigt spectral line profile | |
Roston, G.D.^1 ; Ahmed, M.F.^1 ; Helmi, M.S.^1 ; Mahran, O.S.^1 | |
Department of Physics, Faculty of Science, Alexandria University, Egypt^1 | |
关键词: Gaussian profiles; Integral formulas; Line damping parameters; Line profiles; Lorentzian profile; Numerical calculation methods; Second-order differential equation; Voigt spectral line profiles; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012037/pdf DOI : 10.1088/1742-6596/810/1/012037 |
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来源: IOP | |
【 摘 要 】
A modified formula for the Voigt spectral line profile has been obtained. The Voigt formula has been transferred from the integral formula to a second order differential equation. It was found that the results of the obtained formula are in a perfect agreement with the corresponding published results which are obtained by different numerical calculation methods for a wide range of the line damping parameter (a) for (0 ≤ a ≤ 200). Also, four special formulas are obtained at different ranges of the line profile, Gaussian profile at (a → 0), Lorentzian profile at (a → ∞), line center at (x → 0) and line wings at (x → ∞).
【 预 览 】
Files | Size | Format | View |
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A modified formula for the Voigt spectral line profile | 1053KB | download |