来自NuGrid的广泛核生产场所的核合成模拟
Nucleosynthesis simulations for a wide range of nuclear production sites from NuGrid
摘要：
天体物理环境中的核合成模拟是核物理学反应速率研究与天体物理学应用的交叉点，例如在银河系化学演化或近场宇宙学领域。不幸的是，目前这种应用的可用产率是基于各种贡献的核生产站点之间的异质性假设，无论是在热力学环境本身的建模方面，还是在特定核反应速率和汇编的选择方面。另一方面，新的核反应速率测定通常需要很长时间才能纳入天体物理学应用。NuGrid项目通过提供一组代码和这些代码相互作用的框架来解决这些问题。在这篇文章中，我们描述了NuGrid项目的动机，目标和第一个结果。核心是一个新的和不断发展的后处理核合成代码（PPN），可以遵循静态和爆炸核合成后，多区1D-恒星演化以及多区流体动力学输入，包括爆炸。在AGB和大质量恒星领域获得了第一批结果。
英文摘要：
Simulations of nucleosynthesis in astrophysical environments are at the intersection of nuclear physics reaction rate research and astrophysical applications, for example in the area of galactic chemical evolution or near-field cosmology. Unfortunately, at present the available yields for such applications are based on heterogeneous assumptions between the various contributing nuclear production sites, both in terms of modeling the thermodynamic environment itself as well as the choice of specifc nuclear reaction rates and compilations. On the other side, new nuclear reaction rate determinations are often taking a long time to be included in astrophysical applications. The NuGrid project addresses these issues by providing a set of codes and a framework in which these codes interact. In this contribution we describe the motivation, goals and first results of the NuGrid project. At the core is a new and evolving post-processing nuclesoynthesis code (PPN) that can follow quiescent and explosive nucleosynthesis following multi-zone 1D-stellar evolution as well as multi-zone hydrodynamic input, including explosions. First results are available in the areas of AGB and massive stars.
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。
