论文标题
暗物质的热放松混合中子星星
Thermal Relaxation of Dark Matter Admixed Neutron Star
论文作者
论文摘要
由中子恒星有效捕获暗物质的各种理论研究的动机，我们探讨了被捕获的暗物质对中子恒星冷却机制的间接影响。使用IOPB-I参数集的相对论平均形式形式，在有限温度下，在有限温度下将暗物质混合恒星的不同配置的状态方程式获得。我们表明，暗物质动量的变化通过特定的中微子产生恒星的过程大大改变了中微子的发射率。还研究了暗物质恒星的比热和导热率，以探索恒星内部冷却波的传播。还讨论了理论表面温度冷却曲线对状态和恒星物质的化学组成方程的依赖性以及来自各种来源的热辐射的观察数据。我们观察到，暗物质用$ k_ {f}^{\ rm dm}> 0.04 $遵守快速冷却方案。此外，内部热弛豫时期的度量也已经以不同的暗物质动量进行了计算，我们推断了暗物质段的增量会放大恒星的冷却和内部弛豫率。
Motivated by the various theoretical studies regarding the efficient capturing of dark matter by neutron stars, we explore the possible indirect effects of captured dark matter on the cooling mechanism of a neutron star. The equation of states for different configurations of dark matter admixed star at finite temperature is obtained using the relativistic mean-field formalism with the IOPB-I parameter set. We show that the variation in the dark matter momentum vastly modifies the neutrino emissivity through specific neutrino generating processes of the star. The specific heat and the thermal conductivity of a dark matter admixed star have also been investigated to explore the propagation of cooling waves in the interior of the star. The dependence of theoretical surface temperature cooling curves on the equation of state and chemical composition of the stellar matter has also been discussed along with the observational data of thermal radiation from various sources. We observed that the dark matter admixed canonical stars with $k_{f}^{\rm DM} > 0.04$ comply with the fast cooling scenario. Further, the metric for internal thermal relaxation epoch has also been calculated with different dark matter momentum and we deduced that increment of dark matter segment amplify the cooling and internal relaxation rates of the star.
