On one-zone models of stellar pulsation
Abstract
A version of the one-zone model, the weakly coupled monomode model, is derived, showing that the small parameter in stellar pulsation is the coupling term in the momentum equation. A crude model of similar derivation is found that describes a portion of the convection-pulsation interaction. The latter model shows that the time dependence of the perturbation in the convection variables can be an important part of the convection-pulsation interaction. With the assumptions made, the pulsation is stabilized when the convection field is unstable and vice versa.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1985
- DOI:
- 10.1086/163689
- Bibcode:
- 1985ApJ...299..161P
- Keywords:
-
- Stellar Envelopes;
- Stellar Models;
- Stellar Oscillations;
- Convection;
- Astrophysics