Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...200..285v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 200, no. 1-2, July 1988, p. 285-290. Research supported by CNRS, Electricite d
Astronomy and Astrophysics
Astrophysics
7
Atomic Spectra, Dense Plasmas, Line Spectra, Rare Gases, Stark Effect, Electron Density (Concentration), Flash Lamps, Plasma Diagnostics, Spectral Energy Distribution
Scientific paper
The authors present experimental results on the broadening and shift of some rare gas atomic lines emitted by high electron density plasmas created in linear flashtubes. From a semi-empirical formula, they find a theoretical dependence of the Stark broadening parameters on the ionisation potential for lines broadened by electron impacts. Experimentally, a non-linear dependence is found between the Stark width w and shift d, and the electron density. At the lowest electron density, the authors' values of w and d agree with other experimental determinations. The authors have observed a regularity of w and d for analogous lines of homologous atoms.
Dimitrijevic Milan S.
Popovic Milorad
Skowronek M.
Vitel Yves
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