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Atmospheric parameters and abundances of lambda Bootis stars

Heiter, U.

The results of the abundance analyses of six lambda Bootis stars are presented. For three stars, the impact of individual ODFs and various treatments of convection in the calculations of the model atmospheres are investigated.

The energy distribution of Beta CrB for the specific stellar abundances

Castelli, F.

The comparison of the observed and computed energy distributions of Beta CrB has shown that a model with the specific chemical composition of the star can account for the visual energy distribution, while it is still unable to reproduce ultraviolet observations shortward of 1700 Angstroms. Furthermore, the predicted absorption of strong Fe II and …