Systematic Study of Explosive Nucleosynthesis in Supernovae

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K17668
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: Fukuoka University
• Principal Investigator: Nakamura Ko 福岡大学, 理学部, 助教 (60533544)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 超新星 / 元素合成 / 数値シミュレーション / ニュートリノ

Outline of Final Research Achievements

Core-collapse supernovae play important roles in the galactic history. In particular, heavy elements synthesized in their explosions are the main source of the iron-group elements and rare isotopes. Explosive nucleosynthesis has been theoretically studied by means of very simple numerical supernova model since the first-principle supernova simulation is computationally expensive and limited in a short time scale. We have demonstrated multi-dimensional long-term simulations employing a new numerical scheme and a super computer system at NAOJ. We found that some p-rich isotopes such as Mo and Ru are synthesized in a different environment in the supernova. We also found that the abundance pattern of the elements show interesting agreement with the solar abundance.

Free Research Field

理論宇宙物理学