Barbosa |
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Bastian |
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Blum |
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Brott |
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Caballero |
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Chen |
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Chita |
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Chu |
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Churchwell |
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Corcoran |
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Crowther |
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Damineli et al |
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Damineli |
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Fullerton |
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Gagne |
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Gallagher |
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Garcia |
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Garmany |
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Georgiev |
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Hamann |
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Hillier |
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Howarth |
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Indebetouw |
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Kobulnicky |
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Koenigsberger |
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Lang |
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Leitherer |
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Lennon |
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Levesque |
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Linder |
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Maeder |
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Mahy |
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Massa |
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Massey |
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McSwain |
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Moffat |
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Moises |
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Morrell |
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Morris |
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Naze |
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Nieva |
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Olsen |
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Oskinova |
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Owocki |
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Penny |
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Przybilla |
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Skinner |
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Smith |
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Soderberg |
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Teodoro |
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Testor |
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Townsley |
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Vacca |
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Vink |
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Wachter |
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Walborn |
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Wallerstein |
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Whelan |
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Williams |
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Willis |
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Wing |
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Wolff |
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van den Heuvel |
Mass-loss Predictions as a function of Metallicity
Jorick Vink
Armagh Observatory
Radiation-driven winds constitute an important aspect of our understanding of the evolution of massive stars and input into the interstellar medium. Here we present consistent solutions for both the mass-loss rate and the velocity field of O-type stars using a parametrized description of the line force, obtained from Monte-Carlo multi-line radiative transfer calculations. We find good agreement with empirical constraints. Furthermore, we present our latest mass-loss predictions as a function of metallicity and compare the mass-loss-metallicity exponent with recent empirical results from the VLT FLAMES large programme on massive stars. Finally, we discuss the physics of the bi-stability jump and its relevance for the evolution of LBVs as well as the rotational properties of massive stars, with particular emphasis on the implications for the long gamma-ray burst phenomenon.
