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Observations of evolutionary changes in the pulsation period of cepheids

Published online by Cambridge University Press:  04 August 2017

L. Szabados
L. Szabados*
Affiliation:
Konkoly Observatory of the Hungarian Academy of Sciences, Budapest, P.O. Box 67, H-1525 Hungary

Extract

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In spite of the fact that Cepheid variables pulsate quite regularly their pulsation period remains constant only in the first approximation. The pulsation period is subject to variations because of stellar evolution. The calculations made by Hofmeister (1965) predicted that the evolutionary period changes of classical Cepheids should be observed on a time scale of several decades or longer. No detailed analysis of the observed period changes has been made since Hofmeister's fundamental theoretical work.

Type
III. BINARITY, PULSATION, ROTATION AND MIXING
Information
Symposium - International Astronomical Union , Volume 105: Observational Tests of the Stellar Evolution Theory , 1984 , pp. 445 - 448
Copyright
Copyright © Reidel 1984 

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