NLTE analysis of spectra: OBA stars
Ji\v{r}\'i Kub\'at, Brankica \v{S}urlan
TL;DR
This paper reviews methods for calculating NLTE model atmospheres of hot stars, comparing trace element and full NLTE models, and discusses modeling expanding stellar atmospheres with winds.
Contribution
It introduces a comparison between NLTE trace element procedures and full NLTE models, and discusses model atom construction and expanding atmospheres.
Findings
Differences between LTE and NLTE atmospheres are evaluated.
Comparison of trace element and full NLTE models is provided.
Modeling of expanding atmospheres with winds is reviewed.
Abstract
Methods of calculation of NLTE model atmosphere are discussed. The NLTE trace element procedure is compared with the full NLTE model atmosphere calculation. Differences between LTE and NLTE atmosphere modeling are evaluated. The ways of model atom construction are discussed. Finally, modelling of expanding atmospheres of hot stars with winds is briefly reviewed.
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