サイエンス
史上最も強力なガンマ線バーストは超新星によって引き起こされたことがJWSTのデータで確認される
約20億年の旅を経て、2022年10月9日、極めて高エネルギーのガンマ線バースト（GRB）からの光子が、ニール・ゲールズ・スウィフト天文台とフェルミ・ガンマ線宇宙望遠鏡のセンサーに衝突した。GRBは7分間続いたが、もっと […]
Term
r-process
別名: rapid neutron-capture process, 高速中性子捕捉プロセス
Overview
最終更新: 2026年6月8日The r-process (rapid neutron-capture process) is a set of nuclear reactions that in nuclear astrophysics are responsible for the creation of approximately half of the atomic nuclei heavier than iron. The process entails a succession of rapid neutron captures by heavy seed nuclei, typically starting with iron. It requires a high density of free neutrons and is thought to occur in extreme environments such as neutron star mergers and certain types of supernovae.
Mentioned Articles
1 件External Mentions
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