Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III

Moreno Díaz, Cristina and Alonso Medina, Aurelia and Colón Hernández, Cristóbal (2014). Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III. "Physica Scripta", v. 89 (n. 11); pp. 115401-115413. ISSN 0031-8949. https://doi.org/10.1088/0031-8949/89/11/115401.

Description

Title: Theoretical Stark widths and shifts of spectral lines of 2p⁵nf and 2p⁵5g configurations of Mg III
Author/s:
  • Moreno Díaz, Cristina
  • Alonso Medina, Aurelia
  • Colón Hernández, Cristóbal
Item Type: Article
Título de Revista/Publicación: Physica Scripta
Date: October 2014
ISSN: 0031-8949
Volume: 89
Subjects:
Freetext Keywords: Atomic data; Atomic processes; Plasma physics
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In this paper, we report theoretical Stark widths and shifts calculated using the Griem semiempirical 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 cmˉ³. 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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2012-37782UnspecifiedUnspecifiedAnálisis integrado teórico-experimental de la técnica LSP aplicada a la mejora de propiedades mecánicas y superficiales de componentes metálicos de alta fiabilidad

More information

Item ID: 56605
DC Identifier: http://oa.upm.es/56605/
OAI Identifier: oai:oa.upm.es:56605
DOI: 10.1088/0031-8949/89/11/115401
Official URL: https://iopscience.iop.org/article/10.1088/0031-8949/89/11/115401
Deposited by: Memoria Investigacion
Deposited on: 01 Oct 2019 10:02
Last Modified: 01 Oct 2019 10:02
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