par Behara, Natalie Thérèse ;Jeffery, Simon
Référence Baltic astronomy, 15, 1, page (115-122)
Publication Publié, 2006
Article révisé par les pairs
Résumé : The model atmosphere code STERNE has evolved considerably over the years. Most recently, attention has turned to revising the treatment of both continuous and line opacities. Opacity Project photoionization cross-sections have been incorporated and an opacity sampling technique has been implemented. The new opacities and methods are described, while the principal consequences for the models are presented. In studying the application of these new models to atmospheres with extreme chemical compositions, we find the new opacity treatment increases the temperature in the line forming region by 1000-3000 K for extremely hydrogen-poor stars with Teff around 30000 K. This implies cooler effective temperature measurements for stars of this type.

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