论文标题
从旋转中子星来限制状态的核方程
Constraining the Nuclear Equation of State from Rotating Neutron Stars
论文作者
论文摘要
我们证明了如何使用可观察到的中子星的可观察到可以用来约束状态的核方程。通过构建贝叶斯框架，我们演示了由即将到来的多理智时代的动机，将不同类型的中子星测量结合在一起，提供了常用状态参数化方程的信息后验分布。示例性，我们选择了Read等。四个参数模型被广泛用于表示中子星形中的状态的现实方程。由于未来的观察活动不仅将提供质量，半径和旋转率测量值，还可以提供中子星振荡模式，因此必须进行分析联合知识的统一框架。尽管文献中存在几次尝试，但此处提出的框架通过使用最新的普遍关系来考虑其振荡光谱，从而明确考虑了旋转效应。为了证明其性能，我们将其应用于可观察到的可观察到的旋转效果以最佳的精度，并将我们的独立模型用于重建。仅需要少量高精度中子星星测量来对状态的基础方程进行严格的约束。
We demonstrate how observables of slowly rotating neutron stars can be used to constrain the nuclear equation of state. By building a Bayesian framework we demonstrate how combining different types of neutron star measurements, motivated by the upcoming multi-messenger era, provide informative posterior distributions of commonly used equation of state parametrizations. Exemplarily, we chose the Read et al. four parameter model that is widely used to represent realistic equations of states in neutron star physics. Since future observational campaigns will not only provide mass, radius and rotation rate measurements, but also neutron star oscillation modes, a unified framework to analyze the joint knowledge becomes necessary. While several attempts exist in the literature, the here presented framework explicitly takes into account rotational effects by using state-of-the-art universal relations for their oscillation spectra. To demonstrate its performance we apply it to observables that take into account rotational effects to best possible precision and use our independent model for the reconstruction. Only a few high precision neutron star measurements are required to put tight constraints on the underlying equation of state.
