2024 年 58 巻 2 号 p. 25-43
Understanding the origin and distribution of short-lived radionuclides in the early Solar System provides important constraints on the physicochemical environments and temporal information of the earliest stage of the Solar System evolution. Here, I summarize the initial abundances of the short-lived radionuclides Beryllium-10 and Aluminum-26 in the early Solar System based on meteorite analyses and its implications for the early evolution of the Solar protoplanetary disk.