首页 | 本学科首页   官方微博 | 高级检索  
     检索      

导致太阳耀斑爆发的暗条扭绞
引用本文:林元章.导致太阳耀斑爆发的暗条扭绞[J].天文学报,1994,35(2):219-224.
作者姓名:林元章
作者单位:中国科学院北京天文台
摘    要:本文主要根据Ha线心和不同偏带的观测资料,结合紫外CIV1548谱线的测量结果,分析研究了1980年6月25日AR2522活动区中一段暗条在耀斑爆发前15分钟所经历的三次逐渐增强的间歇式扭绞,最终导致暗条破裂和耀斑爆发的物理过程,并且用无力场磁绳近似模拟时间条的扭绞运动,估算了暗条扭绞引直怕无力因子a的变化,轴向电流增大和守能,讨论了暗条的稳定性,试图对暗条的瓦解和耀斑爆发予以理论解释。

关 键 词:耀斑爆发  暗条扭绞  耀斑

TWISTING OF A FILAMENT RESULTED IN A SOLAR FLARE
Lin Yuan-zhang.TWISTING OF A FILAMENT RESULTED IN A SOLAR FLARE[J].Acta Astronomica Sinica,1994,35(2):219-224.
Authors:Lin Yuan-zhang
Abstract:Basing on the filtergrams of Ha line center and various offbands, combining with the measurements of CIV 1548 line, the physical process of a filement was studied. The filament has three spasmodic and gradually enhanced twisting, resulted in a solar flare on 25 June 1980, about 15 minutes prior to that flare and located in AR2522. We simulated approximately the twisting of the filament by a force-free magnetic rope, estimated the variation of the force-free factor, a, as well as the increases of the axial electric current and the energy storage, discussed the instability of the filament, and tried out to explain theoretically the disruption of the filament and the occurrence of the flare.
Keywords:Solar flare  twisting of filament    
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号