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Astron. Astrophys. 341, 587-594 (1999)

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Thermal balance of electrons in calculations of model stellar atmospheres

Jií Kubát 1, Joachim Puls 2 and Adalbert W.A. Pauldrach 2

1 Astronomický ústav, Akademie vd eské republiky, CZ-251 65 Ondejov, Czech Republic
2 Institut für Astronomie und Astrophysik, Scheinerstrasse 1, D-81679 München, Germany

Received 17 July 1998 / Accepted 23 October 1998


As an alternative to the equation of radiative equilibrium, the equation of thermal balance of electrons is used in order to derive temperature structures in NLTE model stellar atmospheres. The calculations are accomplished for various stellar parameters comprising different stellar types, and both methods are compared. It turns out that the application of the electron thermal balance equation is superior to using the standard equation of radiative equilibrium in the outer, line forming parts of stellar atmospheres and beyond.

Key words: radiation mechanisms: thermal – methods: numerical – stars: atmospheres

Send offprint requests to: J. Kubát

© European Southern Observatory (ESO) 1999

Online publication: December 4, 1998