论文标题
用天文观测来限制状态的参数化中子恒星方程
Constraining the parameterized neutron star equation of state with astronomical observations
论文作者
论文摘要
我们利用现象学参数化的状态各个状态各个方程来研究各种中子星特性。我们研究了这些状态方程的依从性以及几个天文观测。我们还证明，惯性分数的理论估计值无法解释观察到的所有脉冲星故障。我们将外壳作为固体球形壳建模，以计算快速旋转中子星的惯性的分数。我们还表明，在简单的磁偶极辐射模型中获得的制动指数具有不同的惯性矩与观察到的数据显着偏离。理论和观察的未来发展都可能使我们能够将惯性的分数和制动指数的分数作为状态的中子星方程的观察限制。
We utilise the phenomenologically parameterized piecewise polytropic equations of state to study various neutron star properties. We investigate the compliance of these equations of state with several astronomical observations. We also demonstrate that the theoretical estimates of the fractional moment of inertia cannot explain all the pulsar glitches observed. We model the crust as a solid spheroidal shell to calculate the fractional moment of inertia of fast-spinning neutron stars. We also show that the braking index obtained in a simple magnetic dipole radiation model with a varying moment of inertia deviates significantly from the observed data. Future developments in both theory and observations may allow us to use the fractional moment of inertia and braking index as observational constraints for neutron star equation of state.
