Limb-darkened radiation-driven winds from massive stars

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...

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Detalles Bibliográficos
Autores principales: Curé, M., Cidale, L., Rial, D.F.
Formato: Artículo publishedVersion
Publicado: 2012
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
Aporte de:Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires Ver origen
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spelling paperaa:paper_0004637X_v757_n2_p_Cure2019-07-03T18:45:54Z Limb-darkened radiation-driven winds from massive stars Astrophys. J. 2012;757(2) Curé, M. Cidale, L. Rial, D.F. hydrodynamics methods: analytical stars: early-type stars: mass-loss stars: rotation stars: winds, outflows 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. Fil:Rial, D.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: rotation
stars: winds, outflows
spellingShingle hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: rotation
stars: winds, outflows
Curé, M.
Cidale, L.
Rial, D.F.
Limb-darkened radiation-driven winds from massive stars
topic_facet hydrodynamics
methods: analytical
stars: early-type
stars: mass-loss
stars: rotation
stars: winds, outflows
description 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.
format Artículo
Artículo
publishedVersion
author Curé, M.
Cidale, L.
Rial, D.F.
author_facet Curé, M.
Cidale, L.
Rial, D.F.
author_sort Curé, M.
title Limb-darkened radiation-driven winds from massive stars
title_short Limb-darkened radiation-driven winds from massive stars
title_full Limb-darkened radiation-driven winds from massive stars
title_fullStr Limb-darkened radiation-driven winds from massive stars
title_full_unstemmed Limb-darkened radiation-driven winds from massive stars
title_sort limb-darkened radiation-driven winds from massive stars
publishDate 2012
url http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
work_keys_str_mv AT curem limbdarkenedradiationdrivenwindsfrommassivestars
AT cidalel limbdarkenedradiationdrivenwindsfrommassivestars
AT rialdf limbdarkenedradiationdrivenwindsfrommassivestars
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