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Search for HI Bubbles Around WR Stars: WR 149
Published online by Cambridge University Press: 25 May 2016
Extract
The interaction of strong stellar winds with the interstellar medium creates large cavities or interstellar bubbles surrounded by expanding outer shells. 21-cm line (HI) observations have revealed the presence of such neutral gas bubbles around several WR stars (e.g. Niemela & Cappa de Nicolau 1991 and references therein; Dubner et al. 1992).
Continuing our search for HI bubbles around WR stars, we have analyzed the neutral hydrogen distribution in the vicinity of the Wolf-Rayet star WR149, a highly reddened WN6-7 star located at 6.5 kpc in the direction (l,b) = (89.°53,+0.°65).
- Type
- Chapter 7: How are we to Understand the Small Scale Structure of the ISM?
- Information
- Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 619 - 620
- Copyright
- Copyright © Kluwer 1996