Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26as...82..519d&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 82, no. 3, March 1990, p. 519-529. Research supported by CNR
Astronomy and Astrophysics
Astrophysics
49
Atomic Spectra, Helium, Spectral Line Width, Stark Effect, Atomic Energy Levels, Electron Density (Concentration), Electron Impact, Proton Impact, Resonance Lines
Scientific paper
Results are presented from calculations of the electron-, proton-, and ionized helium-impact line widths and shifts for 77 neutral helium multiplets in the UV, visible, and IR regions of the spectrum. The calculations are performed using a semiclassical perturbation formalism (Sahal-Brechot, 1969). Tables are given for the line widths and shift for He I resonance lines at a perturber density of 10 to the 13th/cu cm.
Dimitrijevic Milan S.
Sahal-Bréchot Sylvie
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