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Automated Nonlinear Stellar Pulsation Calculations: Applications to RR Lyrae stars. The Slope of the Fundamental Blue Edge and the First RRd Model Survey
R. Szabo, Z. Kollath, J. R. Buchler
We describe a methodology that allows us to follow the pulsational behavior of an RR Lyrae model consistently and automatically along its evolutionary track throughout the whole in…
Magellanic Cloud Cepheids: Pulsational and Evolutionary Modelling vs. Observations
J. Robert Buchler, Zoltan Kollath, Jean-Philippe Beaulieu
The pulsational properties of the Cepheid models along the evolutionary tracks from the Padova group (Girardi et al.), as calculated with our turbulent convective pulsation code, a…
Turbulent Convection in Pulsating Stars
J. Robert Buchler, Philip Yecko, Zoltan Kollath +1
We review recent results of stellar pulsation modelling that show that even very simple one-dimensional models for time dependent turbulent energy diffusion and convection provide…
A ~ 14 Days Star with Two Phase-Locked Modes of Pulsation in the Eros Database
J. P. Beaulieu, R. Buchler, M. J. Goupil +1
Using CCD photometry obtained by the EROS collaboration in 1991-1993, we have discovered an LMC variable star with a light curve that is oscillating with a mean period of …
Modelling the Phase-Locked Pulsations of a P=14d EROS Star
Z. Kollath, J. R. Buchler, J. P. Beaulieu +1
The Fourier spectral analysis of this object suggests a nonlinear pulsation of period approximately 14d with a 3:2 frequency lock between two vibrational modes. We discuss an exten…