Comparison between a radiative wind model for be stars and high angular resolution data from the GI2T interferometer |
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| Authors: | Ph Stee |
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| Institution: | (1) Observatoire de la Côte d'Azur, CNRS URA 1361, Plateau de Calern, 06460 St Vallier de Thiey, France |
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| Abstract: | I present theoretical line profiles and intensity maps from an axi-symmetric radiative wind model from a rapidly rotating Be star. The introduction of a viscosity parameter in the latitude-dependent hydrodynamic code enables us to consider the effects of the viscous force in the azimuthal component of momentum equations (Araújo et al. 1994). Both velocity field and density law derived from the hydrodynamic equations have been used for solving the statistical equilibrium equations. By adopting the Sobolev approximation, we could easily obtain a good estimate of both electronic density and hydrogen level populations throughout the envelope. The numerical calculation was performed for parameters characterisic of the Be star Cassiopeiae. |
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| Keywords: | stars: Be stars: individual: Cas" target="_blank">gif" alt="gamma" align="MIDDLE" BORDER="0"> Cas |
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