论文标题
暗物质在重力波观察中掺入中子星的特性：两种流体方法
Dark matter admixed neutron star properties in the light of gravitational wave observations: a two fluid approach
论文作者
论文摘要
我们考虑密度依赖性暗物质对中子星质量，半径和潮汐变形性的影响。核物质（正常物质）以及费尔米尼克暗物质部门在平均野外模型中被考虑。我们采用两种流体形式主义来研究暗物质对中子星特性的影响。在两种流体图片中，暗物质与核物质之间没有直接的相互作用。相反，这两个部门仅通过重力相互作用相互作用。核物质部门用“ FSU2R”参数化中的$σ-ω-ρ$ MESON相互作用描述。在暗物质领域，我们使用贝叶斯参数优化技术来修复状态暗物质方程中未知参数。在两张流体图片中，我们解决了耦合的Tolman-Oppenheimer-Volkoff（TOV）方程，以获得暗物质的质量和半径混合了中子星（DANSS）。我们还估计了密度依赖性暗物质对暗物质中性星（DANSS）的潮汐变形性的影响。
We consider the effect of density dependent dark matter on the neutron star mass, radius, and tidal deformability. Nuclear matter (normal matter) as well as the fermionic dark matter sector is considered in a mean field model. We adopt the two fluid formalism to investigate the effect of dark matter on the neutron star properties. In the two fluid picture, there is no direct interaction between the dark matter and the nuclear matter. Rather these two sectors interact only through gravitational interaction. The nuclear matter sector is described by the $σ-ω-ρ$ meson interaction in the "FSU2R" parameterization. In the dark matter sector, we use the Bayesian parameter optimization technique to fix the unknown parameters in the dark matter equation of state. In the two fluid picture, we solve the coupled Tolman-Oppenheimer-Volkoff (TOV) equations to obtain the mass and radius of dark matter admixed neutron stars (DANSs). We also estimate the effect of the density dependent dark matter sector on the tidal deformability of dark matter admixed neutron stars (DANSs).
