论文标题
暗物质的动力演化混合了中子星星
Dynamical evolution of dark matter admixed neutron stars
论文作者
论文摘要
我们首次动态演化了暗物质，用费米文化的暗物质混合了中子星。这些系统是中子星和暗物质的普通核物质的混合物。为了执行我们的动态演变，我们以保守形式得出运动形式的运动方程，以使具有任意数量的完美流体的球形对称系统。使用有限体积和高分辨率冲击方法，我们动态进化了两流体情况，第一个流体建模普通物质和第二流体建模暗物质。我们使用动力学解决方案来研究非线性稳定性，径向振荡频率和动态形成过程。
We dynamically evolve for the first time dark matter admixed neutron stars with fermionic dark matter. These systems are mixtures of the ordinary nuclear matter of a neutron star and dark matter. To perform our dynamical evolutions, we derive the equations of motion, in conservation form, for spherically symmetric systems with an arbitrary number of perfect fluids. Using finite volume and high-resolution shock-capturing methods, we dynamically evolve the two-fluid case, with the first fluid modeling ordinary matter and the second fluid modeling dark matter. We use our dynamical solutions to study nonlinear stability, radial oscillation frequencies, and a dynamical formation process.
