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

Abstract

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.

Authors:
; ;  [1]
  1. Montreal, Universite, Montreal (Canada) Space Telescope Science Institute, Baltimore, MD (United States)
Publication Date:
OSTI Identifier:
5184644
Resource Type:
Journal Article
Journal Name:
Astronomical Journal; (United States)
Additional Journal Information:
Journal Volume: 102; Journal ID: ISSN 0004-6256
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; WOLF-RAYET STARS; COORDINATES; AGE ESTIMATION; MASS TRANSFER; MILKY WAY; STAR CLUSTERS; STAR EVOLUTION; SURVEYS; GALAXIES; MAIN SEQUENCE STARS; STARS; 640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources

Citation Formats

Moffat, A F.J., Shara, M M, and Potter, M. New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2. United States: N. p., 1991. Web. doi:10.1086/115897.
Moffat, A F.J., Shara, M M, & Potter, M. New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2. United States. https://doi.org/10.1086/115897
Moffat, A F.J., Shara, M M, and Potter, M. 1991. "New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2". United States. https://doi.org/10.1086/115897.
@article{osti_5184644,
title = {New Wolf-Rayet stars in Galactic open clusters - Sher 1 and the giant H II region core Westerlund 2},
author = {Moffat, A F.J. and Shara, M M and Potter, M},
abstractNote = {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.},
doi = {10.1086/115897},
url = {https://www.osti.gov/biblio/5184644}, journal = {Astronomical Journal; (United States)},
issn = {0004-6256},
number = ,
volume = 102,
place = {United States},
year = {Thu Aug 01 00:00:00 EDT 1991},
month = {Thu Aug 01 00:00:00 EDT 1991}
}