Hayakawa T, Iwamoto N, Shizuma T, Kajino T, Umeda H, Nomoto K
Advanced Photon Research Center, Japan Atomic Energy Research Institute, Kizu, Kyoto 619-0215, Japan.
Phys Rev Lett. 2004 Oct 15;93(16):161102. doi: 10.1103/PhysRevLett.93.161102. Epub 2004 Oct 14.
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.
通过分析太阳系的丰度，我们发现了两条关于p核和s核的通用标度律。它们表明，超新星（SN）爆发中的γ过程是p核最可能的起源，在大约50年的时间里，人们已经对许多可能的核反应和场所进行了讨论。此外，这些标度律还引出了新的概念：γ过程的普遍性和一种新的核宇宙计时器。我们对典型的核心坍缩超新星爆发模型进行了γ过程核合成计算，结果符合观测到的标度律。
