A fully blanketed early B star LTE model atmosphere using an opacity sampling technique

Astronomy and Astrophysics – Astronomy

Scientific paper

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B Stars, Early Stars, Opacity, Stellar Atmospheres, Stellar Models, Thermodynamic Equilibrium, Absorption Spectra, Atmospheric Models, Stellar Spectra, Ultraviolet Spectra

Scientific paper

A fully blanketed LTE model of a stellar atmosphere with Te = 21,914 K, log g = 4 is presented. The model includes an explicit representation of the opacity due to the strongest lines, and uses a statistical opacity sampling technique to represent the weaker line opacity. The sampling technique is subjected to several tests and the model is compared with an atmosphere calculated using the line-distribution function method. The limitations of the distribution function method and the particular opacity sampling method used here are discussed in the light of the results obtained.

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