论文标题
用天体物理$ r $进程探测中子富含中子的actinides的裂变特性
Probing the fission properties of neutron-rich actinides with the astrophysical $r$ process
论文作者
论文摘要
我们回顾了最近研究裂变在快速中子捕获（$ r $ - 过程）核合成中的影响，该核合成可能发生在天体物理环境中。我们简要讨论不确定的裂变障碍和裂变率对重肌动物物种种群的影响。我们证明了裂变片段分布对富含中子的核的影响，并讨论了当前可用的治疗方法，包括最近的宏观微观计算。最后，我们将直接的核合成结果与富含$ r $ r $ process元素的恒星数据进行比较，以考虑裂变是否在从星到星到明星观察到的$ r $ $ $ $ $ $ r $过程的“普遍性”中发挥作用。
We review recent work examining the influence of fission in rapid neutron capture ($r$-process) nucleosynthesis which can take place in astrophysical environments. We briefly discuss the impact of uncertain fission barriers and fission rates on the population of heavy actinide species. We demonstrate the influence of the fission fragment distributions for neutron-rich nuclei and discuss currently available treatments, including recent macroscopic-microscopic calculations. We conclude by comparing our nucleosynthesis results directly with stellar data for metal-poor stars rich in $r$-process elements to consider whether fission plays a role in the so-called `universality' of $r$-process abundances observed from star to star.
