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Spectroscopic analyses of HdBe stars

Published online by Cambridge University Press:  26 May 2016

C.S. Jeffery
C.S. Jeffery*
Affiliation:
Dept of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, FIFE KY16 9SS, Scotland

Extract

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A few hydrogen-deficient B stars (or extreme helium stars: EHes) exhibit Be-type behaviour (the HdBe stars). The principal class members are BD −9°4395, LSE 78 and DY Cen. The hot RCrB stars MV Sgr and V348 Sgr and the hot EHes HD 160641 and LSS 5121 are related to these objects. Since there are wide abundance variations amongst the EHes, as well as wide variations in Be-type behaviour, the principal HdBes have been analysed for atmospheric parameters, including Teff, log g and composition.

Type
5. Be Stars: Spectroscopy and Photometry
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 331 - 332
Copyright
Copyright © Kluwer 1994 

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