论文标题
R-Process核的放射性衰变中的侵蚀器
Astromers in the radioactive decay of r-process nuclei
论文作者
论文摘要
我们研究了在快速中子捕获过程（R过程）核合成的背景下，天体物理相关的核异构体（Astromers）的影响。我们计算长寿命异构体和中子富核中相应基态之间的热介导的过渡速率。我们计算了依赖温度的β-末期进料因子，这些饲料代表了从β-蛋白父母物种到材料的材料的比例。我们通过将其作为单独的物种核激发态（测得的陆生半年寿命大于100微秒）来模拟核合成。我们发现整个核素图中的各种异构体被人群，我们确定了最有可能影响的异构体。我们评论异构体生产在R过程中改变放射性加热的能力。
We study the impact of astrophysically relevant nuclear isomers (astromers) in the context of the rapid neutron capture process (r-process) nucleosynthesis. We compute thermally mediated transition rates between long-lived isomers and the corresponding ground states in neutron-rich nuclei. We calculate the temperature-dependent beta-decay feeding factors which represent the fraction of material going to each of the isomer and ground state daughter species from the beta-decay parent species. We simulate nucleosynthesis by including as separate species nuclear excited states with measured terrestrial half-lives greater than 100 microseconds. We find a variety of isomers throughout the chart of nuclides are populated, and we identify those most likely to be influential. We comment on the capacity of isomer production to alter radioactive heating in an r-process environment.
