论文标题
Spritz：中微子的一般相对论磁性水力学
Spritz: General Relativistic Magnetohydrodynamics with Neutrinos
论文作者
论文摘要
在这里，我们提出了一种新版本的公共一般相对论磁流失动力（GRMHD）代码$ \ texttt {spritz} $，现在包括一个近似的中微子泄漏方案，能够处理中微子冷却和加热。泄漏方案基于公开可用的$ \ texttt {zelmanileak} $代码，并进行了一些修改，以便与$ \ texttt {spritz} $正确使用。我们讨论所涉及的方程式，物理假设和实现的数值方法，以及在有或没有磁场的情况下进行的大量一般相对论测试。我们的测试证明了中微子泄漏方案的正确实施，为进一步改善中微子治疗和首次应用于磁化二进制二进制二元中子星星合并铺平了道路。我们还讨论了$ \ texttt {spritz} $高阶方法代码的实现，以更准确地进化流体动力学数量。
We here present a new version of the publicly available general relativistic magnetohydrodynamic (GRMHD) code $\texttt{Spritz}$, which now includes an approximate neutrino leakage scheme able to handle neutrino cooling and heating. The leakage scheme is based on the publicly available $\texttt{ZelmaniLeak}$ code, with a few modifications in order to properly work with $\texttt{Spritz}$. We discuss the involved equations, physical assumptions, and implemented numerical methods, along with a large battery of general relativistic tests performed with and without magnetic fields. Our tests demonstrate the correct implementation of the neutrino leakage scheme, paving the way for further improvements of our neutrino treatment and the first application to magnetized binary neutron star mergers. We also discuss the implementation in the $\texttt{Spritz}$ code of high-order methods for a more accurate evolution of hydrodynamical quantities.
