论文标题
超子对中子星中F模式振荡的影响
Effect of hyperons on f-mode oscillations in Neutron Stars
论文作者
论文摘要
随着中子恒星内部的密度超过了陆核实验的密度，它们为在极端条件下研究密集物质的性质提供了一个范围。中子星的内核的组成是高度不确定的，据推测，诸如Hyperons之类的外来物质形式可能会出现。中子星中不稳定振荡模式发出的重力波包含有关其内部组成的信息，因此使我们能够直接探测内部。最近，对中子恒星中F模式振荡的系统研究揭示了不确定性在核饱和参数中的作用，尤其是有效核定质量在其频率上的作用。在这项工作中，我们研究了超子的外观对F模式振荡频率的影响，因此对引力波的发射。我们还推测F模式频率的未来检测是否可以提供探测中子星核中Hyperon的存在的可能性。
As the densities in the interior of neutron stars exceed those of terrestrial nuclear experiments, they provide a scope for studying the nature of dense matter under extreme conditions. The composition of the inner core of neutron stars is highly uncertain, and it is speculated that exotic forms of matter such as hyperons may appear there. Gravitational waves emitted by unstable oscillation modes in neutron stars contain information about their interior composition and therefore allow us to probe the interior directly. Recently, a systematic investigation of f-mode oscillations in neutron stars revealed the role of the uncertainty in nuclear saturation parameters, particularly the effective nucleon mass, on its frequency. In this work, we study the influence of the appearance of hyperons on f-mode oscillation frequencies and therefore on the emission of gravitational waves. We also speculate whether a future detection of f-mode frequencies could provide a possibility of probing the presence of hyperons in the neutron star core.
