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Interrelation of Modal Amplitudes of Double-Mode Pulsators

Published online by Cambridge University Press:  12 April 2016

L. Szabados
L. Szabados*
Affiliation:
Konkoly Observatory, Budapest, Hungary

Abstract

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During the study of the factors governing the modal amplitudes of the double-mode radial pulsators, it has been found that the R21 Fourier parameter deduced from the light curves is in a relationship with the ratio of the modal amplitudes, for beat Cepheids and RR Lyrae variables, as well. The form of this relation gives a natural explanation for the fact that double-mode pulsators with slightly excited second modes do not exist.

Type
Part 3. Nonlinear Effects in Pulsating Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 418 - 419
Copyright
Copyright © Astronomical Society of the Pacific 2002

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