锗是中子俘获元素吗？
Is Germanium (Ge, Z=32) A Neutron-Capture Element?
摘要：
历史上，Ge被认为是一种中子俘获元素。在这种情况下，Ge的r-过程丰度是通过从太阳系的总丰度中减去s-过程丰度得出的。然而，贫金属星HD 108317的Ge丰度低于太阳系标度剩余r过程丰度，约为1.2 dex。本文通过对贫金属星Ge丰度和恒星产额的比较，发现大质量星Ge丰度不是类原初产额的结果，而主要来自r过程。根据贫金属星的观测丰度，推导了弱r过程和主r过程的Ge丰度。太阳系中中子俘获过程对Ge的贡献率约为59%，这意味着太阳系中Ge剩余丰度的贡献率约为41%，我们发现Ge剩余丰度在大质量恒星中是以类次级产额的形式产生的。这意味着太阳系中的元素Ge不仅仅是由中子捕获过程产生的。
英文摘要：
Historically,Ge has been considered to be a neutron-capture element. In this case, the r-process abundance of Ge is derived by subtracting the s-process abundance from the total abundance in the Solar system. However, the Ge abundance of the metal-poor star HD 108317 is lower than that of the scaled residual r-process abundance in the Solar system, about 1.2 dex. In this paper, based on a comparison of the Ge abundances of metal-poor stars and stellar yields, we find that the Ge abundances are not the result of the primary-like yields in massive stars and come mainly from the r-process. Based on the observed abundances of metal-poor stars, we derived the Ge abundances of the weak r-process and main r-process. The contributed percentage of the neutron-capture process to Ge in the Solar system is about 59 per cent, which means that the contributed percentage of the Ge residual abundance in the Solar system is about 41 per cent. We find that the Ge residual abundance is produced as secondary-like yields in massive stars. This implies that the element Ge in the Solar system is not produced solely by the neutron-capture process.
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。
