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Abstract
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| In this paper, we report theoretical Stark widths and shifts calculated using the Griem semi-empirical approach, which corresponds to 111 spectral lines of Mg III. The values of these Stark broadening parameters of spectral lines that arise from levels of 2p5nf and 2p55g configurations of Mg III are presented in the literature for the first time. The aim of this work is to provide values to estimate the electron density of plasma Mg III in astrophysics and industrial applications. The data are presented for the temperatures T = 0.5?10.0 (104 K) and for an electron density of 1017 cm?3. The matrix of elements used in these calculations has been determined from 23 configurations of Mg III: 2s22p6, 2s22p53p, 2s22p54p, 2s22p54f and 2s22p55f for the even parity and 2s22p5ns (n = 3?6), 2s22p5nd (n = 3?9), 2s22p55g and 2s2p6np (n = 3?8) for the odd parity. For the intermediate coupling calculations, we use the standard method of least square fitting from experimental energy levels by means of Cowan's computer code. Lines with wavelengths of 134.6460, 135.2800, 189.0380, 190.0043, 192.8424, 408.2939 and 409.4375 nm have high probabilities and also have high values of broadening. Therefore, these lines can be used in some applications. A common regularity for the Stark width of the 189.038 nm spectral line of Mg III is discussed. | |
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International
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Si |
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JCR
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Si |
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Title
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Physica Scripta |
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ISBN
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0031-8949 |
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Impact factor JCR
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1,032 |
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Impact info
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Datos JCR del año 2012 |
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Volume
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89 |
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http://dx.doi.org/10.1088/0031-8949/89/11/115401 |
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Journal number
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11 |
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From page
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115401 |
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To page
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115413 |
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Month
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SIN MES |
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Ranking
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