https://doi.org/10.1007/s100530070032
Asymmetry of Stark profiles
The microfield point of view
1
DASGALUMR 8633 du CNRS, Observatoire de Paris,
5 place J. Janssen, 92195 Meudon, France
2
CEA, Ile-de-France,
B.P. 12, 91680 Bruyères le Châtel Cedex,
France
3
Hydrogen Energy and Plasma Technology Institute,
Russian Research Center Kurchatov Institute, Moscow 123182, Russia
Received:
21
January
2000
Revised:
27
April
2000
Published online: 15 November 2000
The theoretical basis is presented that allows to compute the
Stark broadened line shapes of atomic ions up to the quadrupole
terms in the interaction potential between the radiator
and the plasma electric microfields and their gradients. The nature of
the corrections due to the plasma polarization effects associated with
the electron distribution around ion perturbers are carefully analyzed.
The relevant universal plasma functions are evaluated
in a cluster expansion or by Monte Carlo simulations, and
the line shape is calculated with ion dynamic effects by
the Model Microfield Method. The asymmetry of
the Lyman 
line of hydrogenic ions is then studied.
PACS: 32.70.Jz – Line shapes, widths, and shifts / 95.30.-k – Fundamental aspect of astrophysics / 95.30.Dr – Atomic processes and interactions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
