全部 标题 作者
关键词 摘要

Physics  2000 

A Morphological Diagnostic for Dynamical Evolution of Wolf-Rayet Bubbles

DOI: 10.1086/316830

Full-Text   Cite this paper   Add to My Lib

Abstract:

We have observed H-alpha and [OIII] emission from eight of the most well defined Wolf-Rayet ring nebulae in the Galaxy. We find that in many cases the outermost edge of the [OIII] emission leads the H-alpha emission. We suggest that these offsets, when present, are due to the shock from the Wolf-Rayet bubble expanding into the circumstellar envelope. Thus, the details of the WR bubble morphology at H-alpha and [OIII] can then be used to better understand the physical condition and evolutionary stage of the nebulae around Wolf-Rayet stars, as well as place constraints on the nature of the stellar progenitor and its mass loss history.

Full-Text

comments powered by Disqus