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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
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
Palabras clave:hydrodynamics; methods: analytical; stars: early-type; stars: mass-loss; stars: rotation; stars: winds, outflows
Año:2012
Volumen:757
Número:2
DOI: http://dx.doi.org/10.1088/0004-637X/757/2/142
Handle:http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
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