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Non-Adiabatic Effects on Pulsation Periods

Published online by Cambridge University Press:  12 April 2016

Toshiki Aikawa
Toshiki Aikawa*
Affiliation:
Faculty of Engineering, Tohoku-Gakuin University, Tagajo, 985 Japan

Extract

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It is well known that the difference between the adiabatic pulsation periods and the corresponding non-adiabatic periods is small in classical Cepheids. However, the difference becomes significantly large in low surface-gravity models (e.g. Aikawa 1984a). In this paper we shall discuss the origins of the difference between the two pulsation periods. The weight functions for non-adiabatic pulsation periods are introduced in analogy to those of Epstein (1950) for adiabatic periods.

Type
Part II. Evolution and Pulsation Theory
Information
International Astronomical Union Colloquium , Volume 82: Cepheids: Theory and Observations , 1985 , pp. 147 - 148
Copyright
Copyright © Cambridge University Press 1985

References

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