Where do flare ribbons stop?  

作　　者：CHEN PengFei SU JiangTao GUO Yan DENG YuanYong 

机构地区：[1]Department of Astronomy, Nanjing University, Nanjing 210093, China [2]Key Laboratory of Solar Physics, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

出　　处：《Chinese Science Bulletin》2012年第12期1393-1396,共4页

基　　金：supported by the National Natural Science Foundation of China(11025314,10878002,and 10933003);the National Basic Research Program of China(2011CB811402);supported by an open research program of National Astronomical Observatories of China

摘　　要：The standard flare model,which was proposed based on observations and magnetohydrodynamic theory,can successfully explain many observational features of solar flares.However,this model is just a framework,with many details awaiting to be filled in, including how reconnection is triggered.In this paper,we address an unanswered question:where do flare ribbons stop?With the data analysis of the 2003 May 29 flare event,we tentatively confirmed our conjecture that flare ribbons finally stop at the intersection of separatrices(or quasi-separatrix layer in a general case)with the solar surface.Once verified,such a conjecture can be used to predict the final size and even the lifetime of solar flares.The standard flare model, which was proposed based on observations and magnetohydrodynamic theory, can successfully explain many observational features of solar flares. However, this model is just a framework, with many details awaiting to be filled in, including how reconnection is triggered. In this paper, we address an unanswered question： where do flare ribbons stop？ With the data analysis of the 2003 May 29 flare event, we tentatively confirmed our conjecture that flare ribbons finally stop at the intersection of separatrices （or quasi-separatrix layer in a general case） with the solar surface. Once verified, such a conjecture can be used to predict the final size and even the lifetime of solar flares.

关 键 词：太阳耀斑 丝带 数据分析 太阳表面 界线层 

分 类 号：P182.52[天文地球—天文学] TS43[农业科学—烟草工业]