Impact of Few-Body Reactions on Explosive Nucleosynthesis: The Big-Bang and Supernovae
Impact of Few-Body Reactions on Explosive Nucleosynthesis: The Big-Bang and Supernovae
复制标题
少体反应对爆炸性核合成的影响：大爆炸和超新星
DOI：
10.1007/978-3-7091-6287-3_13
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
G. Mathews
中科院分区：
文献类型：
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作者：
T. Kajino;K. Otsuki;S. Wanajo;M. Orito;G. Mathews
我们研究了在各种天体物理条件下轻到重质量元素爆炸核合成中的几个体反应。在SNell引力核坍缩的中微子驱动风中，一些轻核和重不稳定核在产生r过程元素中起着重要作用。本文讨论了截面未知的三体反应4He（αn，γ）9Be如何起关键作用。我们注意到r过程中的其他几个反应与大爆炸核合成有关。我们简要地讨论一下银河系的化学演化。
We study the few body reactions in explosive nucleosynthesis of light-to-heavy mass elements in various astrophysical conditions. In neutrino-driven winds of gravitational core collapse of SNell, several light nuclei as well as heavy unstable nuclei paly significant roles in producing r-process elements. We discuss how the three-body reaction4He(αn,γ)9Be, whose cross section is poorly known, plays very critical role. We make note that several other reactions in the r-process are relevant to a Big-Bang nucleosynthesis. We discuss briefly a Galactic chemical evolution.