Abstract
In a paper submitted to A&A we present the first line blanketed hydrodynamic models of spherically expanding atmospheres of hot stars. This paper is complementary to the submitted paper. Here, we emphasize the advantages and the weak points of our approach and we present additional technical aspects.
The models are characterised by a simultaneous solution of the equation of motion, the non-LTE populations of H and He, and radiation transfer in a line blanketed atmosphere. The entire domain from the optically thick photosphere out to the terminal velocity of the wind is treated. The radiative forces are evaluated consistently with the depth-dependent radiation field, taking into account multiple scattering by metal lines and line overlap.
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References
Abbott D.C., 1982, ApJ 259, 282
Abbott D.C., Lucy L., 1985, ApJ 288, 679
Drew J.E., 1989, ApJS 71, 267
Gabler R., Gabler A., Kudritzki R.P., Puls J., Pauldrach A., 1989, A&A 226, 162
Groenewegen M.A.T., Lamers H.J.G.L.M., 1991, A&A 243, 429
Hamann W.-R., Schmutz W., 1987, A&A 174, 173
Hillier D.J., Kudritzki R.P., Pauldrach A., Baade D., Cassinelli J., Puls J., Schmitt J.H.M.M., 1993, A&A 276, 117
Pauldrach A., 1987, A&A 183, 295 125
Puls J., Hummer D.G., 1988, A&A 191, 87
Schaerer D., Schmutz W., 1993, A&A submitted (Paper I)
Schmutz W., 1991, in “Stellar Atmospheres: Beyond Classical Model s”, Eds. Crivellari, L., Hubeny, I., Hummer, D.G., NATO ASI Series C, Vol. 341, p. 191
Schmutz W., Abbott D.C., Russell R.S., Hamann W.-R., Wessolowski U., 1990, ApJ 355, 255
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Schaerer, D., Schmutz, W. Hydrodynamic atmosphere models for hot luminous stars II. Method and improvements over unified models. Space Sci Rev 66, 173–177 (1993). https://doi.org/10.1007/BF00771059
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DOI: https://doi.org/10.1007/BF00771059