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New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2

Journal Article · · Astronomical Journal; (United States)
DOI:https://doi.org/10.1086/115897· OSTI ID:5184644
; ;  [1]
  1. Montreal, Universite, Montreal (Canada) Space Telescope Science Institute, Baltimore, MD (United States)
Two new Galactic Wolf-Rayet stars were found in open clusters: a WN4 star in the O9 cluster Sher 1 and a WN7 star in the O7 cluster Westerlund 2. This confirms a previous trend, namely that fainter, hotter WN stars tend to be older than brighter, cooler WN stars. This may be a consequence of evolution via extreme mass loss. 18 refs.
OSTI ID:
5184644
Journal Information:
Astronomical Journal; (United States), Journal Name: Astronomical Journal; (United States) Vol. 102; ISSN 0004-6256; ISSN ANJOA
Country of Publication:
United States
Language:
English

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