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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Autor principal: Rial, Diego Fernando
Publicado: 2012
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v757_n2_p_Cure
http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
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spelling paper:paper_0004637X_v757_n2_p_Cure2023-06-08T14:29:08Z Limb-darkened radiation-driven winds from massive stars Rial, Diego Fernando 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 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v757_n2_p_Cure 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
Rial, Diego Fernando
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.
author Rial, Diego Fernando
author_facet Rial, Diego Fernando
author_sort Rial, Diego Fernando
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 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v757_n2_p_Cure
http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure
work_keys_str_mv AT rialdiegofernando limbdarkenedradiationdrivenwindsfrommassivestars
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