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Modelling Cepheids and RR Lyrae Stars

Published online by Cambridge University Press:  15 February 2018

G. Kovács
G. Kovács*
Affiliation:
University of Florida, Department of Physics, Gainesville Konkoly Observatory, Budapest, Hungary

Abstract

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We review the recent nonlinear hydrodynamical results and the numerical problems to be solved by the next generation of codes. The behavior of the Fourier parameters and double-mode RR Lyrae pulsation will be discussed in detail. We emphasize the importance of the implementation of the various adaptive-mesh schemes for stellar pulsations. A further goal is the substitution of the artificial viscosity with modern shock capturing methods and a better treatment of radiative transfer. Convection however, must ultimately be included in order to supply the necessary physical mechanism for dissipation.

Type
Theoretical Breakthroughs
Information
International Astronomical Union Colloquium , Volume 139: New Perspectives on Stellar Pulsation and Pulsating Variable Stars , 1993 , pp. 267 - 274
Copyright
Copyright © Cambridge University Press 1993

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