论文标题
来自状态的统一辐射和夸克方程的中子星的径向振荡
Radial oscillations in neutron stars from unified hadronic and quarkyonic equation of states
论文作者
论文摘要
我们通过考虑支持2 m $ _ \ odot $ star Criterion的状态方程（EOSS）来研究非旋转中子恒星中的径向振荡。我们解决了Sturm-Liouville问题，以计算20个最低的径向振荡模式及其对中子星的本征源，这些恒星由来自不同Skyrme-Hartree Fock，相对主义的均值菲尔德和Quarkyony模型的八个选定的统一EOSS建模。我们比较了用hadronic建模的NS计算出的特征频率的行为与Quarkyonic Eoss，同时改变了中心密度。在1.4 m $ _ \ odot $的两个类别的两个类别之间，最低顺序，F模式频率在其各自的最大质量上消失，与稳定性标准$ \ partial m/\partialρ_c> 0 $一致。此外，我们还计算了大频率分离，并发现高阶模式频率通过在EOS中掺入地壳可显着降低。
We study radial oscillations in non-rotating neutron stars by considering the unified equation of states (EoSs), which support the 2 M$_\odot$ star criterion. We solve the Sturm-Liouville problem to compute 20 lowest radial oscillation modes and their eigenfunctions for neutron star modelled with eight selected unified EoSs from distinct Skyrme-Hartree Fock, Relativistic Mean-Field and quarkyonic models. We compare the behavior of the computed eigenfrequency for NS modelled with hadronic to that with quarkyonic EoSs while varying central densities. The lowest order, f-mode frequency varies substantially between the two classes of the of EoS at 1.4 M$_\odot$ but vanishes at their respective maximum masses, consistent with the stability criterion $\partial M/\partialρ_c > 0$. Moreover, we also computed large frequency separation and discovered that higher-order mode frequencies are significantly reduced by incorporating crust in the EoS.
