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Time-dependent fourier analysis, application to nonlinear pulsations of stellar models

  • C. G. Davis
  • G. Kovácks
  • J. R. Buchler
Cepheids
Part of the Lecture Notes in Physics book series (LNP, volume 274)

Abstract

A time-dependent Fourier analysis is described and applied to the study of the numerically generated hydrodynamic behavior of a stellar model. The approach yields the temporal variation of the amplitudes and phases of the various excited modes and sheds new light on the modal interaction and on the approach to the final steady pulsation.

Keywords

Modal Interaction Maximum Entropy Method Fundamental Period Stellar Model Hydrodynamic Behavior 
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References

  1. Buchler, J. R., 1985, in Chaos in Astrophysics, Eds. Buchler, J. R., et al., NATO ASI Ser. C 161, 137, Reidel Publ.Google Scholar
  2. Buchler, J. R. and Goupil M.-J., 1984, Ap. J. 279, 394.Google Scholar
  3. Buchler, J. R. and Kovács, G., 1986, “on the Modal Selection in Stellar Pulsators, II. Application to RR Lyrae Models”, Ap. J. (submitted).Google Scholar
  4. Castor, J. I., Davis C. G. and Davison, D. D., 1977, LASL Rep LA-6644.Google Scholar
  5. Davis C. G. and Davison, D. D., 1978, Ap. J. 221, 929.Google Scholar
  6. Kovács, G., Buchler, J. R. and Davis, C. G., 1986, “Application of Time-DependentFourier Analysis to Nonlinear Pulsational Stellar Models”, Ap. J. (submitted).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • C. G. Davis
    • 1
  • G. Kovácks
    • 2
  • J. R. Buchler
    • 2
  1. 1.Los Alamos National LaboratoryLos Alamos
  2. 2.University of FloridaGainesvilleFL

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