Stellar instability from parametric resonance

Abstract In this paper we examine the stability of stellar configurations in which interior solution is described by a closed Friedmann-Lemaître-Robertson-Walker (FLRW) geometry sourced with charged pressureless fluid and radiation. An interacting vacuum component conformally coupled massive scalar field are also included. Given simple factor for energy transfer between obtain bounded oscillatory solutions. We show that proper domains parameter space dynamics highly unstable so break Kolmogorov–Arnold–Moser (KAM) tori leads to disruptive ejection mass. For such asymptotically matches an exterior Reissner–Nordström–de Sitter spacetime.