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| DOI | 10.1088/0004-637X/795/1/78 | ||||
| Año | 2014 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The standard, or fast, solutions of m-CAK line-driven wind theory cannot account for slowly outflowing disks like the ones that surround Be stars. It has been previously shown that there exists another family of solutions-the Omega-slow solutions-that is characterized by much slower terminal velocities and higher mass-loss rates. We have solved the one-dimensional m-CAK hydrodynamical equation of rotating radiation-driven winds for this latter solution, starting from standard values of the line force parameters (alpha, k, and delta), and then systematically varying the values of alpha and k. Terminal velocities and mass-loss rates that are in good agreement with those found in Be stars are obtained from the solutions with lower alpha and higher k values. Furthermore, the equatorial densities of such solutions are comparable to those that are typically assumed in ad hoc models. For very high values of k, we find that the wind solutions exhibit a new kind of behavior.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Silaj, J. | - |
Univ Western Ontario - Canadá
Western University - Canadá |
| 2 | CURE-OJEDA, MICHEL | Hombre |
Universidad de Valparaíso - Chile
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| 3 | Jones, C. E. | Mujer |
Univ Western Ontario - Canadá
Western University - Canadá |
| Fuente |
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| FONDECYT |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Natural Sciences and Engineering Research Council of Canada |
| Centro de Astrofisica de Valparaiso |
| NSERC, Natural Sciences and Engineering Research Council of Canada |
| Agradecimiento |
|---|
| We thank the anonymous referee, whose comments helped to strengthen and improve this paper. We also thank Joachim Puls and Lydia Cidale for their helpful discussions on this project. This work has made use of NASA's Astrophysics Data System. M.C. acknowledges, with thanks, the support of FONDECYT project 1130173 and Centro de Astrofisica de Valparaiso. This research was supported in part by NSERC, the Natural Sciences and Engineering Research Council of Canada. |