Do clumping corrections increase with decreasing mass-loss rates?

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We report on new mass-loss rate estimates for O stars in six massive binaries using the amplitude of orbital-phase dependent, linear-polarimetric variability caused by electron scattering off free electrons in the winds. Our estimated mass-loss rates for luminous O stars are independent of clumping. They suggest similar clumping corrections as for WR stars and do not support the recently proposed reduction in mass-loss rates of O stars by one or two orders of magnitude.

Metadaten
Author details:	N. St-Louis, Anthony F. J. Moffat
URN:	urn:nbn:de:kobv:517-opus-17696
Publication type:	Conference Proceeding
Language:	English
Publication year:	2007
Publishing institution:	Universität Potsdam
Release date:	2008/04/25
RVK - Regensburg classification:	US 1999.07
Organizational units:	Extern / Extern
DDC classification:	5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Collection(s):	Universität Potsdam / Tagungsbände/Proceedings (nicht fortlaufend) / Clumping in hot-star winds: International Workshop, Potsdam, Germany, 18. - 22. June 2007
	Universität Potsdam / Tagungsbände/Proceedings (nicht fortlaufend) / Clumping in hot-star winds: International Workshop, Potsdam, Germany, 18. - 22. June 2007 / Talks and Discussions (in alphabetical order)
	Universität Potsdam / Tagungsbände/Proceedings (nicht fortlaufend) / Clumping in hot-star winds: International Workshop, Potsdam, Germany, 18. - 22. June 2007 / Talks and Discussions (organized by sections) / Spectroscopy and mass loss diagnostic: observations
License (German):	Keine öffentliche Lizenz: Unter Urheberrechtsschutz
External remark:	The complete edition of the proceedings "Clumping in hot-star winds" is available: urn:nbn:de:kobv:517-opus-13981