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Stark broadening of stellar Pt II lines

Published online by Cambridge University Press:  26 May 2016

Milan S. Dimitrijević
Milan S. Dimitrijević*
Affiliation:
Astronomical Observatory, Volgina 7, 11050 Belgrade, Yugoslavia

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Lines of Pt II have been discovered in Hg Mn stars by Dworetsky (1969). The analysis of a few strong Pt II transitions, which are also observed in IUE spectra of stars, has shown (Dworetsky et al., 1984) “that Pt is, like Hg, among the most overabundant elements in the atmospheres of Hg Mn stars, with enhancements of the order of 104 to 105 over the solar system abundances”. Dworetsky et al. (1984) selected also the four Pt II lines which might be used for astrophysical applications. Moreover, they determined the corresponding theoretical gf values. The aim of this contribution is to investigate the Stark broadening of these Pt II lines and to provide the corresponding Stark widths.

Type
5. Be Stars: Spectroscopy and Photometry
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 337 - 338
Copyright
Copyright © Kluwer 1994 

References

Dimitrijević, M.S.: 1982, Astronomy and Astrophysics 112, 251 Google Scholar
Dimitrijević, M.S., Konjević, N.: 1980, JQSRT 24, 451 Google Scholar
Dworetsky, M.M.: 1969, Astrophysical Journal 156, L101 CrossRefGoogle Scholar
Dworetsky, M.M., Storey, P.J., Jacobs, J.M.: 1984, Physica Scripta T8, 39 Google Scholar
Dworetsky, M.M., and Vaughan, Jr.H.: 1973, Astrophysical Journal 181, 811 Google Scholar