论文标题
多流体紧凑型恒星的径向振荡和稳定性
Radial oscillations and stability of multiple-fluid compact stars
论文作者
论文摘要
我得出了一个由任意数量的完美流体组成的紧凑型恒星的脉动方程系统，可用于研究径向振荡和相对于小扰动的稳定性。我假设球形对称性，并且唯一的流体相互作用是引力。我的推导与Chandrasekhar的原始推导有关单流体紧凑型恒星的脉动方程式的原始推导，并保持各个流体的贡献。我说明了具有单，二和三流体示例的脉动方程系统的解决方案。
I derive a system of pulsation equations for compact stars made up of an arbitrary number of perfect fluids that can be used to study radial oscillations and stability with respect to small perturbations. I assume spherical symmetry and that the only inter-fluid interactions are gravitational. My derivation is in line with Chandrasekhar's original derivation for the pulsation equation of a single-fluid compact star and keeps the contributions from the individual fluids manifest. I illustrate solutions to the system of pulsations equations with one-, two-, and three-fluid examples.
