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Paper: The Wolf-Rayet Hydrogen Puzzle – an Observational Point of View
Volume: 353, Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology
Page: 197
Authors: Foellmi, C.; Marchenko, S.V.; Moffat, A.F.J.
Abstract: Significant amounts of hydrogen were found in very hot early-type single WN stars in the SMC and the LMC. Recently, we found similar evidence in the Wolf-Rayet star of a short-period LMC binary. We discuss here the relevance of hydrogen for WR star classification, models, the relation to metallicity, and the GRB progenitors.
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