2014
DOI: 10.3390/atoms2030299
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Ion Dynamics Effect on Stark-Broadened Line Shapes: A Cross-Comparison of Various Models

Abstract: International audienceModeling the Stark broadening of spectral lines in plasmas is a complex problem. The problem has a long history, since it plays a crucial role in the interpretation of the observed spectral lines in laboratories and astrophysical plasmas. One difficulty is the characterization of the emitter's environment. Although several models have been proposed over the years, there have been no systematic studies of the results, until now. Here, calculations from stochastic models and numerical simul… Show more

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Cited by 49 publications
(50 citation statements)
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“…In order to get a dipole autocorrelation function sufficiently close to zero at large times, we have taken 10 6 time steps. Our simulation (not presented at the Workshop 2013 edition) is in agreement with the other simulation codes presented at the Workshop [10]. These codes also assumed several thousands of particles.…”
Section: Questioning the Validity Of Simulationssupporting
confidence: 72%
“…In order to get a dipole autocorrelation function sufficiently close to zero at large times, we have taken 10 6 time steps. Our simulation (not presented at the Workshop 2013 edition) is in agreement with the other simulation codes presented at the Workshop [10]. These codes also assumed several thousands of particles.…”
Section: Questioning the Validity Of Simulationssupporting
confidence: 72%
“…Most efforts to treat the observed, strong dependence on perturber ion masses involve some extension of the standard theory, specifically, the new dynamical effects of the radiator-(ion microfield) interaction still are treated separately from the dynamical (i.e., collisional) effects of interactions with plasma electrons [46][47][48][49][50]. All-particle MD is ideally suited to an alternative, unified line-shape prescription in which the field history !…”
Section: Discussionmentioning
confidence: 99%
“…Here, g(ω, ω f i ) is the spectral line profile and could be obtained, for instance, as a result of a molecular dynamics (MD) simulations [20][21][22] or as a result of theoretical modeling and spectral line data [23][24][25][26][27]. The lineshape is normalized to unity area, e.g.,…”
Section: The Calculated Quantitiesmentioning
confidence: 99%