VLA Observations of WR6: A Search for an Anisotropic Wind

Details VLA Observations of WR6: A Search for an Anisotropic Wind VLA Observations of WR6: A Search for an Anisotropic Wind

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cokon.103..145c&link_type=abstract

Communications of the Konkoly Observatory, Hungary Proceedings of the conference: 'The interaction of stars with their environme

Physics

Scientific paper

The interaction between a stellar wind and its surrounding ISM can create HI cavities or bubbles. In particular, WR 6 shows a very large ovoidal HI bubble around it, whose shape cannot be explained in terms of the standard interstellar bubble theory and may require an anisotropic wind. We have studied this possibility using 3.6cm VLA observations. We found no firm evidence supporting that WR 6 has a strong anisotropic wind. We conclude that our results are consistent with a classic thermal wind. Under this assumption we have determined the source size, its brightness temperature and its mass loss rate.

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