Andersson On the Evolutionary Status of Extremely Hot Helium Stars — are O ( He ) Stars Successors of RCrB Stars ?

Abstract

95% of all stars end their lives as white dwarfs. About 20% of the hot post-AGB stars are hydrogen deficient. Most of these are the result of a late helium-shell flash, but the evolutionary status of a fraction of about 10–20% of the hottest hydrogen-deficient stars, namely four O(He) stars, is as yet unexplained. They could be the long-searched hot… (More)

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Cite this paper

@inproceedings{Rauch2004AnderssonOT, title={Andersson On the Evolutionary Status of Extremely Hot Helium Stars — are O ( He ) Stars Successors of RCrB Stars ?}, author={Thyra Rauch and Elke Reiff and Falk Herwig}, year={2004} }