The Interaction of a Strong Stellar Wind with the Interstellar Medium.
Abstract
The interaction of a strong stellar wind from a hot, supergiant star with its environment was studied. A shock will form around the star and sweep up interstellar gas as it expands. After a very short time, the circumstellar shell of shocked interstellar gas will collapse due to radiative cooling. During this phase the star appears to be blowing a bubble into the interstellar medium. The detailed hydrodynamic and time dependent ionization structure of the thermal conduction dominated interior of this bubble was calculated as a function of space, assuming spherical symmetry and an approximate similarity solution. The evolution of this interstellar bubble was then approximated by requiring energy and momentum conservation. The adopted alogrithm predicts deviations from the initial similarity solution and thus allows a detailed model to be calculated at any advanced time.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1977
- Bibcode:
- 1977PhDT.........7W
- Keywords:
-
- Physics: Astronomy and Astrophysics;
- Interstellar Matter;
- Stellar Winds;
- Astronomical Models;
- Interstellar Gas;
- Ionization;
- Supergiant Stars;
- Astrophysics