SkyNet：一个模块化核反应网络库
SkyNet: A modular nuclear reaction network library
摘要：
几乎所有存在于太阳系中的比氢重的元素都是在早期宇宙或恒星生命周期的某个时刻通过核燃烧过程产生的。在所有这些环境中，有几十到几千个原子核物种相互作用，产生更重的元素。在本文中，我们提出了天网，一个新的通用核反应网络，演变的核物种的丰度的影响下的核反应。天网可以用来计算所有天体物理场景中发生核合成的核合成演化。SkyNet是免费和开源的，旨在易于使用和灵活。任何同位素都可以进化，天网支持各种不同类型的核反应。天网是模块化的，因此新的或现有的物理学，如核反应或状态方程，可以很容易地添加或修改。在这里，我们详细介绍了在天网中实现的物理学，重点是从核统计平衡（NSE）到非平衡核燃烧的自洽过渡，我们实现的电子屏蔽，以及网络与状态方程的耦合。我们还提出了全面的代码测试和现有的核反应网络的比较。我们发现，天网同意发表的结果和其他代码的准确性为百分之几。离散性，如果它们存在，可以追溯到物理实现的差异。
英文摘要：
Almost all of the elements heavier than hydrogen that are present in our solar system were produced by nuclear burning processes either in the early universe or at some point in the life cycle of stars. In all of these environments, there are dozens to thousands of nuclear species that interact with each other to produce successively heavier elements. In this paper, we present SkyNet, a new general-purpose nuclear reaction network that evolves the abundances of nuclear species under the influence of nuclear reactions. SkyNet can be used to compute the nucleosynthesis evolution in all astrophysical scenarios where nucleosynthesis occurs. SkyNet is free and open-source and aims to be easy to use and flexible. Any list of isotopes can be evolved and SkyNet supports various different types of nuclear reactions. SkyNet is modular so that new or existing physics, like nuclear reactions or equations of state, can easily be added or modified. Here, we present in detail the physics implemented in SkyNet with a focus on a self-consistent transition to and from nuclear statistical equilibrium (NSE) to non-equilibrium nuclear burning, our implementation of electron screening, and coupling of the network to an equation of state. We also present comprehensive code tests and comparisons with existing nuclear reaction networks. We find that SkyNet agrees with published results and other codes to an accuracy of a few percent. Discrepancies, where they exist, can be traced to differences in the physics implementations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
