Stellar wind bubbles in H II regions

Details Stellar wind bubbles in H II regions Stellar wind bubbles in H II regions

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....59..161d&link_type=abstract

Astronomy and Astrophysics, vol. 59, no. 2, July 1977, p. 161-165.

Astronomy and Astrophysics

Astrophysics

76

H Ii Regions, Nebulae, Stellar Mass Ejection, Stellar Winds, Astrodynamics, Bubbles, Cavitation Flow, Density Distribution, Hydrogen Ions, Space Density, Stellar Models

Scientific paper

The effects of stellar winds and density gradients on the dynamics of H II regions are considered. The case of spherically symmetric stellar winds is analyzed, and a spherically symmetric model is shown to be in direct conflict with observations. An attempt is made to describe a more realistic geometry, and a simple model of an H II region at the edge of a massive neutral cloud is used to investigate the motion of an isotropic stellar wind through a density gradient. Numerical results are presented for several cases in which a bubble of shocked stellar wind is assumed to expand through the ambient gas of an expanding shell.

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