Astron. Astrophys. Suppl. Ser.
Volume 139, Number 3, November I 1999
|Page(s)||617 - 623|
|Published online||15 November 1999|
The stark broadening effect in hot star atmospheres: Au I and Au II lines
Astronomical Observatory, Volgina 7, 11000 Belgrade, Yugoslavia
Send offprint request to: L.Č. Popović
Accepted: 16 June 1999
The Stark broadening parameters for six Au I lines and eight Au II transitions have been calculated. Two methods for calculation have been used: the semiclassical method (for Au I lines) and the modified semiempirical approach (for Au II transitions). In the case of Au II, the jj coupling approximation has been used for the matrix-element calculations. The importance of the electron-impact effect in the case of Au II nm line for several stellar atmosphere models has been tested.
Key words: atomic processes / line formation / stars: atmospheres / stars: early-type
© European Southern Observatory (ESO), 1999