Proceedings of the International Astronomical Union
Event
IAU Symposium 252: The Art of Modelling Stars in the 21st Century, Sanya, China
Volume | Issue number
4 | S252
Pages (from-to)
283-287
Organisations
Faculty of Science (FNWI) - Anton Pannekoek Institute for Astronomy (API)
Abstract
We study the effect of wind inhomogeneities (clumping) on O star wind model predictions. For this purpose we artificially include clumping into our stationary NLTE wind models. As a result of the inclusion of optically thin clumps the radiative line force is increased compared to corresponding unclumped models, with a similar effect on either the mass-loss rate or the terminal velocity. When the clumps are allowed to be optically thick in continuum, on the other hand, the radiative force and consequently the mass-loss rate decreases alternatively.
Document type
Article
Note
Proceedings title: The art of modelling stars in the 21st century: Proceedings of the 252th Symposium of the International Astronomical Union, held in Sanya, Hainan Province, China, April 6-11, 2008
Publisher: Cambridge University Press
Place of publication: Cambridge, UK
ISBN: 978-0-521-88983-4
Editors: L. Deng, K.-I. Chan