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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Formato: | Articulo |
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2012
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/84559 |
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I19-R120-10915-84559 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
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SEDICI (UNLP) |
language |
Inglés |
topic |
Ciencias Astronómicas hydrodynamics methods: analytical stars: early-type stars: mass-loss stars: rotation stars: winds, outflows |
spellingShingle |
Ciencias Astronómicas hydrodynamics methods: analytical stars: early-type stars: mass-loss stars: rotation stars: winds, outflows Curé, Michel Cidale, Lydia Sonia Rial, D. F. Limb-darkened radiation-driven winds from massive stars |
topic_facet |
Ciencias Astronómicas 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. |
format |
Articulo Articulo |
author |
Curé, Michel Cidale, Lydia Sonia Rial, D. F. |
author_facet |
Curé, Michel Cidale, Lydia Sonia Rial, D. F. |
author_sort |
Curé, Michel |
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://sedici.unlp.edu.ar/handle/10915/84559 |
work_keys_str_mv |
AT curemichel limbdarkenedradiationdrivenwindsfrommassivestars AT cidalelydiasonia limbdarkenedradiationdrivenwindsfrommassivestars AT rialdf limbdarkenedradiationdrivenwindsfrommassivestars |
bdutipo_str |
Repositorios |
_version_ |
1764820488905818114 |