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Atoms 2018, 6(1), 6; doi:10.3390/atoms6010006

Contribution of Lienard-Wiechert Potential to the Electron Broadening of Spectral Lines in Plasmas

1
Laboratoire de Recherche de Physique des Plasmas et Surfaces, Ouargla 30000, Algérie
2
Département de Physique, Faculté de Mathématiques et Sciences de la matière, Université Kasdi-Merbah, Ouargla 30000, Algérie
3
Lycée professionnel les Alpilles, Rue des Lauriers, 13140 Miramas, France
4
Département des Sciences et Technologies, Faculté des Sciences et Technologies, Université de Ghardaia, Ghardaia 47000, Algérie
*
Author to whom correspondence should be addressed.
Received: 28 December 2017 / Revised: 2 February 2018 / Accepted: 4 February 2018 / Published: 8 February 2018
(This article belongs to the Special Issue Spectral Line Shapes in Astrophysics and Related Topics)
View Full-Text   |   Download PDF [272 KB, uploaded 8 February 2018]

Abstract

Lienard-Wiechert or retarded electric and magnetic fields are produced by moving electric charges with respect to a rest frame. In hot plasmas, such fields may be created by high velocity free electrons. The resulting electric field has a relativistic expression that depends on the ratio of the free electron velocity to the speed of light in vacuum c. In this work, we consider the semi-classical dipole interaction between the emitter ions and the Lienard-Wiechert electric field of the free electrons and compute its contribution to the broadening of the spectral line shape in hot and dense plasmas. View Full-Text
Keywords: Stark effect; electron broadening; Lienard-Wiechert; retarded interaction; relativistic collision operator Stark effect; electron broadening; Lienard-Wiechert; retarded interaction; relativistic collision operator
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Meftah, M.T.; Arif, K.; Chenini, K.; Touati, K.A.; Douis, S. Contribution of Lienard-Wiechert Potential to the Electron Broadening of Spectral Lines in Plasmas. Atoms 2018, 6, 6.

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