Solar cycles during the seventeenth century revealed by equatorial aurora records  

作　　者：Yong Wei LiMei Yan 

机构地区：[1]Key Laboratory of Earth and Planetary Physics,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China [2]College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Earth and Planetary Physics》2025年第1期182-187,共6页地球与行星物理（英文版）

基　　金：supported by the National Natural Science Foundation of China (42388101);the CAS Youth Interdisciplinary Team (JCTD-2021-05);funded by the Youth Innovation Promotion Association, Chinese Academy of Sciences.

摘　　要：Solar cycles are fundamental to astrophysics,space exploration,technological infrastructure,and Earth's climate.A better understanding of these cycles and their history can aid in risk mitigation on Earth,while also deepening our knowledge of stellar physics and solar system dynamics.Determining the solar cycles between 1600 and 1700-especially the post-1645 Maunder Minimum,characterized by significantly reduced solar activity-poses challenges to existing solar activity proxies.This study utilizes a new red equatorial auroral catalog from ancient Korean texts to establish solar cycle patterns from 1623 to 1700.Remarkably,a further reevaluation of the solar cycles between 1610 and 1755 identified a total of 13 cycles,diverging from the widely accepted record of 12 cycles during that time.This research enhances our understanding of historical solar activity,and underscores the importance of integrating diverse historical sources into modern analyses.

关 键 词：solar cycle Maunder Minimum solar activity red equatorial aurora West Pacific geomagnetic anomaly 

分 类 号：P182[天文地球—天文学] P427.33