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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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0004637X_v757_n2_p_Cure |
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todo:paper_0004637X_v757_n2_p_Cure2023-10-03T14:02:27Z Limb-darkened radiation-driven winds from massive stars 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. JOUR 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 |
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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 |
JOUR |
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 |
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 |
_version_ |
1782023913557983232 |