Line broadening on the basis of molecular eigenstates in high-density plasmas
Spectronomie des Gaz et des Plasmas, Département de Recherches Physiques, Université Pierre et Marie
Curie, 4 place Jussieu - Tour 22, 2ème étage, 75252 Paris Cedex 05 - France
Accepted: 28 November 1996
Free and bound electrons in high-density plasmas have been treated by a self-consistent-field method applied to our previous quasi-molecule model (Phys. Rev. A, 40 (1989) 1983). The local density of the former and quantum parameters of the latter are given as functions of the internuclear distance R. Using these data in the framework of an adiabatic theory of line broadening, where ion dynamics and electron impact effects are included, we have calculated the NeX Lyman α and β line profiles and pointed out the excitation of several molecular satellites. For the NeX Lyman β line in particular, the molecular satellites and are clearly visible on the near red wing in spite of large ion dynamics and electron impact broadening effects.
PACS: 31.15.-p – Calculations and mathematical techniques in atomic and molecular physics (excluding electron correlationcalculations) / 32.70.-n – Intensities and shapes of atomic spectral lines / 52.25.-b – Plasma properties
© EDP Sciences, 1997