Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...181..343h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 181, no. 2, July 1987, p. 343-350.
Astronomy and Astrophysics
Astrophysics
10
Astrophysics, Interstellar Matter, Kinematics, Stellar Winds, Bubbles, Clouds, Cooling, Density Distribution, Evaporation, Stellar Envelopes
Scientific paper
The authors investigate the structure and kinematics of stellar wind bubbles for various scales. They classify the stellar wind bubbles into two types by the criterion of whether the radius of the bubble is smaller or larger than the typical scale of the cloud in which the wind producing star is embedded. For the former case, the standard wind bubble model of Weaver et al. (1977) is generalized by taking into account the density gradient of the ambient matter surrounding the star. When the radius of the wind bubble becomes larger than the size of the surrounding cloud, the cloudlets of interstellar matter are engulfed by the hot wind region and then the evaporation of the cloudlets considerably modifies the structure of the wind bubble. This reproduces well the observational data on the kinematic character and the structure of extended ring nebulae.
Hanami Hitoshi
Sakashita Shikou
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