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Stellar parameters of Wolf-Rayet stars from far-UV to mid-IR observations

Published online by Cambridge University Press:  26 May 2016

Paul A. Crowther
Paul A. Crowther*
Affiliation:
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK

Abstract

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Recent results for Galactic and Magellanic Cloud Wolf-Rayet stars are summarised based on line-blanketed, clumped model atmospheres together with UV, optical and IR spectroscopy. The trend towards earlier WN and WC spectral types with decreasing metallicity is explained via the sensitivity of classification diagnostics to abundance/wind density, such that WR mass-loss rates are metallicity dependent. Pre-supernovae masses for WC stars are determined, in reasonable agreement with CO-cores of recent Type Ic SN.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 47 - 55
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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