The influence of clumping on predicted O star wind parameters

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Authors	KRTIČKA Jiří PULS Joachim KUBÁT Jiří
Year of publication	2008
Type	Article in Proceedings
Conference	Clumping in hot-star winds
MU Faculty or unit	Faculty of Science
Citation
Web	http://opus.kobv.de/ubp/frontdoor.php?source_opus=1796&la=de
Field	Astronomy and astrophysics
Keywords	stars: winds; stars: mass-loss; stars: early-type; - hydrodynamics
Description	We study the influence of clumping on the predicted wind structure of O-type stars. For this purpose we artificially include clumping into our stationary wind models. When the clumps are assumed to be optically thin, the radiative line force increases compared to corresponding unclumped models, with a similar effect on either the mass-loss rate or the terminal velocity (depending on the onset of clumping). Optically thick clumps, alternatively, might be able to decrease the radiative force.
Related projects:	Stellar winds of first stars in the Universe