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

Received: 27 January 1999
Accepted: 16 June 1999

Abstract

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.