Searching for events in Chinese ancient records to explain the increase in ^14C from AD 774-775 and

• 作 者: Ya-Ting Chai Yuan-Chuan Zou
• 机 构: SchoolofPhysics,DepartmentofPhysics
• 出 处: 天文和天体物理学研究：英文版
• 发表日期: 2015年9期
• 关键词: 14C 事件 古代记录 中国 伽玛射线爆发 射线能量 历史文献 时间分辨率 astroparticle -- ^14C -- gamma rays： gener
• 基金项目: supported by the National Natural Science Foundation of China (Grant No. U1231101),the National Basic Research Program of China (973 Program, Grant No. 2014CB845800)

According to analysis of the14 C content in two Japanese trees, that grew over a period of approximately 3000 years, with high time resolution, Miyake et al.found a rapid increase at AD 774–775 and another one at AD 993–994. These increases correspond to