Abstract:
We calculated the influence of the limb-darkened finite-disk correction factor in the theory of radiation-driven winds from massive stars. We solved the one-dimensional m-CAK hydrodynamical equation of rotating radiation-driven winds for all three known solutions, i.e., fast, Ω-slow, and δ-slow. We found that for the fast solution, the mass-loss rate is increased by a factor of 10%, while the terminal velocity is reduced about 10%, when compared with the solution using a finite-disk correction factor from a uniformly bright star. For the other two slow solutions, the changes are almost negligible. Although we found that the limb darkening has no effects on the wind-momentum-luminosity relationship, it would affect the calculation of synthetic line profiles and the derivation of accurate wind parameters. © 2012. The American Astronomical Society. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Limb-darkened radiation-driven winds from massive stars |
Autor: | Curé, M.; Cidale, L.; Rial, D.F. |
Filiación: | Departamento de Física y Astronomía, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña 1111, Casilla 5030, Valparaíso, Chile Departamento de Espectroscopía, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de la Plata (UNLP), Paseo del Bosque S/N, 1900 La Plata, Argentina Instituto de Astrofísica la Plata, CCT la Plata, CONICET-UNLP, Paseo del Bosque S/N, 1900 La Plata, Argentina Departamento de Matemáticas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina IMAS, CONICET, Universidad de Buenos Aires, Argentina Carrera Del Investigador Científico, CONICET, Argentina
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Palabras clave: | hydrodynamics; methods: analytical; stars: early-type; stars: mass-loss; stars: rotation; stars: winds, outflows |
Año: | 2012
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Volumen: | 757
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Número: | 2
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DOI: |
http://dx.doi.org/10.1088/0004-637X/757/2/142 |
Título revista: | Astrophysical Journal
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Título revista abreviado: | Astrophys. J.
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ISSN: | 0004637X
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PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_0004637X_v757_n2_p_Cure.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v757_n2_p_Cure |
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Citas:
---------- APA ----------
Curé, M., Cidale, L. & Rial, D.F.
(2012)
. Limb-darkened radiation-driven winds from massive stars. Astrophysical Journal, 757(2).
http://dx.doi.org/10.1088/0004-637X/757/2/142---------- CHICAGO ----------
Curé, M., Cidale, L., Rial, D.F.
"Limb-darkened radiation-driven winds from massive stars"
. Astrophysical Journal 757, no. 2
(2012).
http://dx.doi.org/10.1088/0004-637X/757/2/142---------- MLA ----------
Curé, M., Cidale, L., Rial, D.F.
"Limb-darkened radiation-driven winds from massive stars"
. Astrophysical Journal, vol. 757, no. 2, 2012.
http://dx.doi.org/10.1088/0004-637X/757/2/142---------- VANCOUVER ----------
Curé, M., Cidale, L., Rial, D.F. Limb-darkened radiation-driven winds from massive stars. Astrophys. J. 2012;757(2).
http://dx.doi.org/10.1088/0004-637X/757/2/142