Automated nonlinear stellar pulsation calculations: Applications to RR Lyrae stars - The slope of the fundamental blue edge and the first RRd model survey

  title={Automated nonlinear stellar pulsation calculations: Applications to RR Lyrae stars - The slope of the fundamental blue edge and the first RRd model survey},
  author={R{\'o}bert Szab{\'o} and Zolt{\'a}n Koll{\'a}th and J. R. Buchler Konkoly Observatory and Budape{\vs}ť and Hungary. and University of Central Florida and Gainesville and Usa},
  journal={Astronomy and Astrophysics},
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 instability strip. It is based on the powerful amplitude equation formalism, and resorts to a judicious combination of numerical hydrodynamical simulations, the analytical signal time-series analysis, and amplitude equations. A large-scale survey of the nonlinear pulsations in RR Lyr instability strip is then presented… Expand

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