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γ2 Velorum revisited

Published online by Cambridge University Press:  25 May 2016

Orsola De Marco ,
Werner Schmutz ,
Lars Koesterke  and
Wolf-Rainer Hamann
Orsola De Marco
Affiliation:
Institute of Astronomy, Federal Institute of Technology, Zurich, Switzerland
Werner Schmutz
Affiliation:
Institute of Astronomy, Federal Institute of Technology, Zurich, Switzerland
Lars Koesterke
Affiliation:
Department of Physics, University of Potsdam, Germany
Wolf-Rainer Hamann
Affiliation:
Department of Physics, University of Potsdam, Germany

Abstract

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We have carried out a full spectroscopic analysis of the WC8 star in the γ2 Vel binary (WR11). Through the binary radial-velocity curve the mass of the WR star can be determined, and hence its luminosity can be derived through the mass-luminosity relation for WR stars. This can be compared to the luminosity from the spectroscopic analysis. We find that the standard modeling methods underestimate the luminosity of the WR star.

Type
Part 2. Models for single star evolution of massive stars: wind + atmosphere + interior
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 227 - 228
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

De Marco, O., Schmutz, W. 1999, A&A 345, 163 Google Scholar
Koesterke, L., Hamann, W.-R. 1995, A&A 299, 503 Google Scholar
Schmutz, W. 1997, A&A 321, 268 Google Scholar