1. Effect of Turbulence on Line Shapes in Astrophysical and Fusion Plasmas
- Author
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I. Hannachi, Roland Stamm, P. Genesio, M. Meireni, Joël Rosato, Yannick Marandet, Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), and Université Hadj Lakhdar Batna 1
- Subjects
line shape ,Nuclear and High Energy Physics ,Field (physics) ,Langmuir Turbulence ,Wave packet ,Astrophysics::Cosmology and Extragalactic Astrophysics ,01 natural sciences ,010305 fluids & plasmas ,symbols.namesake ,[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] ,[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] ,electric field solitons ,Physics::Plasma Physics ,Electric field ,0103 physical sciences ,lcsh:Nuclear and particle physics. Atomic energy. Radioactivity ,010303 astronomy & astrophysics ,ComputingMilieux_MISCELLANEOUS ,Line (formation) ,Physics ,[PHYS]Physics [physics] ,Balmer series ,Plasma ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,wave collapse ,plasma turbulence ,symbols ,lcsh:QC770-798 ,Hydrogen line ,Atomic physics ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] - Abstract
International audience; We look at the effect of wave collapse turbulence on a hydrogen line shape in plasma. An atom immersed in plasma affected by strong Langmuir turbulence may be perturbed by a sequence of wave packets with a maximum electric field magnitude that is larger than the Holtsmark field. For such conditions, we propose to calculate the shape of the hydrogen Lyman α Lyman β and Balmer α lines with a numerical integration of the Schrödinger equation coupled to a simulation of a sequence of electric fields modeling the effects of the Langmuir wave. We present and discuss several line profiles of Lyman and Balmer lines.
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