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Combined Modeling of Stellar Evolution and Pulsation

Published online by Cambridge University Press:  12 April 2016

Z. Csubry ,
R. Szabó ,
Z. Kolláth  and
J.R. Buchler
Z. Csubry
Affiliation:
Konkoly Observatory, Budapest, HUNGARY
R. Szabó
Affiliation:
Konkoly Observatory, Budapest, HUNGARY
Z. Kolláth
Affiliation:
Konkoly Observatory, Budapest, HUNGARY
J.R. Buchler
Affiliation:
Physics Department, University of Florida, Gainesville, Florida, USA

Abstract

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The radial pulsations of variable stars at specified points along their evolution are accurately described with numerical hydrodynamics. The behavior of the pulsations along evolutionary tracks can then be modeled with amplitude equations, whose coefficients are obtained from fits to these hydrodynamical models. To simulate stellar evolution we make the stellar core’s properties time-dependent and can investigate directly the effects on pulsation despite the very different time-scales (dynamical, thermal, evolutionary).

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. 406 - 407
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

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Kolláth, Z., Buchler, J.R., Szabó, R., Csubry, Z. 2001, Nonlinear Beat Cepheid and RR Lyrae Models, A&A, submittedGoogle Scholar