Evidence for nucleosynthesis in the supernova γ process:: Universal scaling for p nuclei -: art. no. 161102
Evidence for nucleosynthesis in the supernova γ process:: Universal scaling for p nuclei -: art. no. 161102
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DOI：
10.1103/physrevlett.93.161102
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发表时间：
2004-10-15
影响因子：
8.6
通讯作者：
Nomoto, K
中科院分区：
文献类型：
--
作者：
Hayakawa, T;Iwamoto, N;Nomoto, K
通过对太阳系丰度的分析，我们发现了关于p核和S核的两个普适标度定律。它们表明，超新星(SN)爆炸中的伽马过程是最有可能的p核起源，在大约50年的时间里，许多可能的核反应和地点都讨论过p核。此外，标度还带来了新的概念：伽马过程的普适性和新的核宇宙计时器。我们对典型的核坍塌SN爆炸模型进行了伽马过程核合成计算，计算结果与观测标度相符。
Analyzing the solar system abundance, we find two universal scaling laws concerning the p and s nuclei. They indicate that the gamma process in supernova (SN) explosions is the most probable origin of the p nuclei that has been discussed with many possible nuclear reactions and sites in about 50 years. In addition, the scalings lead to new concepts: a universality of the gamma process and a new nuclear cosmochronometer. We carry out gamma-process nucleosynthesis calculations for typical core-collapse SN explosion models, and the results satisfy the observed scalings.