HST-WFPC2 observations of Galactic Wolf-Rayet stars, preliminary results
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by
Debra J. Wallace,
Michael M. Shara,
Anthony F.J. Moffat,
Virpi S. Niemela
1999 Volume 193, p112-113
Abstract
We present preliminary results of our<jats:italic>HST</jats:italic>-WFPC2 pc-survey of Wolf-Rayet stars. Initiated in 1996, the goal was to discover new companions to, and cluster/association memberships of, known Galactic WR stars. From these results, Niemela<jats:italic>et al.</jats:italic>(1998) have already established a firm link between non-thermal radio emission and the location of binary wind-collision zones for WR 146 (confirming radio data of Dougherty<jats:italic>et al.</jats:italic>1996) and WR 147 (confirming radio and IR data of Williams<jats:italic>et al.</jats:italic>1997; see also Williams, these Proceedings), and confirmed the presence of a binary companion for WR 86 (listed by Jeffers<jats:italic>et al.</jats:italic>1963). Here, for the first time, we present new information on WR38, WR38a, and WR 104.
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