On one-zone models of stellar pulsation

Details On one-zone models of stellar pulsation On one-zone models of stellar pulsation

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...299..161p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 299, Dec. 1, 1985, p. 161-166.

Astronomy and Astrophysics

Astrophysics

2

Stellar Envelopes, Stellar Models, Stellar Oscillations, Convection

Scientific paper

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.

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