Ion Dynamics Effect on Stark-Broadened Line Shapes: A Cross-Comparison of Various Models

Sandrine Ferri (1) , Annette Calisti (1) , Caroline Mossé (1) , Joël Rosato (1) , Bernard Talin (1) , Spiros Alexiou (2) , Marco A. Gigosos (3) , Manuel A. Gonzalez (3) , Diego Gonzalez-Herrero (3) , Natividad Lara (3) , Thomas Gomez (4) , Carlos Iglesias (5) , Sonja Lorenzen (6) , Roberto Mancini (7) , Evgeny Stambulchik (8)

1 PIIM - Physique des interactions ioniques et moléculaires
2 TETY
3 Departamento de Optica y Fisica Aplicada
4 Department of Astronomy
5 LLNL - Lawrence Livermore National Laboratory
6 Institut für Physik
7 Physics Department, University of Nevada, Reno, USA
8 Plasma Laboratory

Modeling 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 simulations are compared for the Atoms 2014, 2 300 Lyman-α and -β lines in neutral hydrogen. Also discussed are results from the Helium-α and -β lines of Ar XVII.

Mots clés: models; Stark broadening; line shapes; plasmas; numerical simulations

Domaines: Physique des plasmas [physics.plasm-ph]

Sandrine Ferri, Annette Calisti, Caroline Mossé, Joël Rosato, Bernard Talin, et al.. Ion Dynamics Effect on Stark-Broadened Line Shapes: A Cross-Comparison of Various Models. Atoms, 2014, 2 (3), pp.299-318. ⟨10.3390/atoms2030299⟩. ⟨hal-01018749⟩