Nucleosynthesis in neutron-rich supernova ejecta
Nucleosynthesis in neutron-rich supernova ejecta
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DOI：
10.1086/163580
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发表时间：
1985-10
期刊：
影响因子：
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通讯作者：
D. Hartmann;S. Woosley;M. Eid
中科院分区：
文献类型：
--
作者：
D. Hartmann;S. Woosley;M. Eid
本研究涉及超新星喷射物中的核合成，超新星喷射物达到核统计平衡（NSE），其特征中子过剩远远大于通常分配给最丰富重元素产生的中子过剩。采用与模型无关的方法，在典型的冻结温度和密度下计算各种中子过量的 NSE 分布。注意平衡丰度、冻结丰度、多区混合、核 Ca-48、核 Zn-66、包含归一化 NSE 丰度数据的表格以及从多区混合获得的质量分数作为最大中子富集的函数。 58 参考文献。
The present study is concerned with nucleosynthesis in supernova ejecta which achieve nuclear statistical equilibrium (NSE) with a characteristic neutron excess far greater than that customarily assigned to the production of the most abundant heavy elements. A model-independent approach is adopted, and NSE distributions are calculated at a typical freeze-out temperature and density for a variety of neutron excesses. Attention is given to equilibrium abundances, freeze-out abundances, multiple zone mixing, the nucleus Ca-48, the nucleus Zn-66, a table with data regarding normalized NSE abundances, and mass fractions obtained from multizone mixing as a function of maximum neutron enrichment. 58 references.