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Spectroscopic analysis of OB stars in Cygnus OB2

Published online by Cambridge University Press:  25 May 2016

Luis Corral ,
Artemio Herrero ,
M.R. (Charo) Villamariz  and
Eduardo L. Martín
Luis Corral
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Artemio Herrero
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
M.R. (Charo) Villamariz
Affiliation:
Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
Eduardo L. Martín
Affiliation:
University of California, 601 Campbell Hall, Berkeley, CA 94720, USA

Abstract

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We obtain the stellar parameters of eleven OB stars in Cyg OB2 using model atmospheres. Each of the analysed stars shows an enhanced Helium abundance. We releate this is to the young agae of the OB association and/or the low rotational velocity of the stars.

Type
Part 1. Basic observational properties of Wolf-Rayet stars and other hot massive stars
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 61 - 62
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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