Stark broadening of spectral lines of multicharged ions of astrophysical interest. I - C IV lines.

M. S. Dimitrijevic , S. Sahal-Bréchot (1) , V. Bommier (2)

1 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique
2 LESIA (UMR_8109) - Laboratoire d'études spatiales et d'instrumentation en astrophysique

Results are presented on calculations of the electron-, proton-, and ionized helium-impact line widths and shifts for 31 C IV multiplets and 40 Si IV multiplets. These data are compared with observations and are used to investigate the Stark broadening parameter regularities within the spectral series. For both the C IV and Si IV multiplets, a gradual change of the Stark widths was obtained. The reason for this is discussed.

Mots clés: Carbon; Line Spectra; Perturbation Theory; Quantum Mechanics; Stark Effect; Atomic Energy Levels; Electron Impact; Ionized Gases; Space Plasmas

Domaines: Physique [physics]; Astrophysique [astro-ph]; Astrophysique stellaire et solaire [astro-ph.SR]

M. S. Dimitrijevic, S. Sahal-Bréchot, V. Bommier. Stark broadening of spectral lines of multicharged ions of astrophysical interest. I - C IV lines.. Astronomy and Astrophysics - A&A, 1991, Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), 89 (3), pp.581-590. ⟨hal-02393483⟩