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Wolf-Rayet Stars Associated to Giant Regions of Star Formation

Published online by Cambridge University Press:  14 August 2015

Sandro D'Odorico  and
Michael Rosa
Sandro D'Odorico
Affiliation:
1: European Southern Observatory, Garching bei München, FRG
Michael Rosa
Affiliation:
2: Landessternwarte Koenigstuhl, Heidelberg, FRG

Abstract

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Data on Wolf-Rayet (WR) stars in extragalactic H II regions and emission line galaxies are presented and discussed. The sample is still limited and inhomogeneous but two important points appear to be already established: a) The WR stars are more numerous than the blue supergiants at least in same phase of the evolution of the stellar clusters which ionize the giant H II regions, b) when the WR stars are detected, two cases are apparently observed, one in which only WN, the other in which both WN and WC, are present.

Type
SESSION 7 — WOLF-RAYET STARS IN EXTERNAL GALAXIES
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 557 - 562
Copyright
Copyright © Reidel 1982 

References

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