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nlin.CD2003
Creation of twistless circles in a model of stellar pulsations
Andreea Munteanu, Enrique Garcia-Berro, Jordi Jose +1
In the present paper, we study the Poincare map associated to a periodic perturbation, both in space and time, of a linear Hamiltonian system. The dynamical system embodies the ess…
astro-ph2003
A weakly non-adiabatic one-zone model of stellar pulsations: application to Mira stars
Andreea Munteanu, Enrique Garcia-Berro, Jordi Jose
There is growing observational evidence that the irregular changes in the light curves of certain variable stars might be due to deterministic chaos. Supporting these conclusions,…