[Title] Large Eruptive and Confined Flares in Relation to the Solar Active Region Evolution

• Impact Factor:11.7
• DOI number:10.3847/2041-8213/ad8c37
• Teaching and Research Group:天体物理
• Journal:The Astrophysical Journal Letters
• Key Words:Solar active regions;Solar flares;Solar coronal mass ejections
• Abstract:Solar active regions (ARs) provide the required magnetic energy and topological configurations for solar flares. By analyzing 322 M- and X-class flares occurring from 2010 to 2019 across nearly the entire solar cycle 24,this study investigates the relationship between flare eruptive characteristics and the evolutionary phases of ARs. The results show that while most large flares occur during the developing phase of ARs,the probability of eruptive flares is significantly higher during the decaying phase. Confined and eruptive flares occur in nearly equal numbers during developing phases,whereas eruptive flares dominate during decaying phases. Statistical analyses further reveal that strong magnetic fields facilitate flare production but tend to suppress coronal mass ejections,indicating that the decay of magnetic flux systems plays a key role in promoting flare eruptions.
• Co-author:Rao CH,Wang HN,Zhao XH,Xiang NB,Deng LH,Li HT,Liu Y
• First Author:Li FY
• Document Code:026
• Discipline:Science
• First-Level Discipline:Astronomy
• Volume:976
• Issue:1
• Page Number:id.L2, 6 pp.
• ISSN No.:2041-8205
• Translation or Not:no
• Date of Publication:2024-11-20