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Astron. Astrophys. Suppl. Ser. 140, 191-192

Stark broadening of neutral calcium spectral lines [*]

M.S. Dimitrijevic1 - S. Sahal-Bréchot2

Send offprint request: M.S. Dimitrijevic e-mail:

1 - Astronomical Observatory, Volgina 7, 11000 Belgrade, Serbia, Yugoslavia
2 - Laboratoire "Astrophysique, Atomes et Molécules'', Département Atomes et Molécules en Astrophysique,
Unité associée au CNRS 812, Observatoire de Paris-Meudon, 92190 Meudon, France

Received June 24; accepted September 6, 1999


Using the semiclassical perturbation approach, we have calculated electron-, proton-, He II-, Mg II-, Si II- and Fe II-impact line widths and shifts for 189 Ca I multiplets as a function of temperature and perturber density. Perturbers selected here are the main perturbers in solar atmospheres. Obtained results have been compared with the existing theoretical and experimental data.

Key words: atomic data -- line: profiles

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