标题： 恒星不稳定性来自参量共振 显示英文标题

标题： Stellar Instability from Parametric Resonance

摘要： 在本文中，我们研究了恒星结构的稳定性，其中内部解由一个由带电无压流体和辐射源的封闭FLRW几何描述。还包含了相互作用的真空组分和共形耦合的宏观标量场。给定一个能量传递的简单因子，我们得到了有限的内部振荡解。我们表明，在参数空间的适当区域内，内部动力学高度不稳定，导致KAM环面的破坏，从而引发质量的破坏性喷射。对于这些配置，内部解渐近匹配外部Reissner-Nordström-de Sitter时空。 显示英文摘要

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