Envelope Soliton in Solar Radio Emission

作     者：王德焴 G.P.Chernov WANG De-Yu;G.P.Chernov

作者机构：Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210008 National Astronomical ObservatoriesChinese Academy of Sciences IZMIRAN142092 TroitaskMoscow RegionRussia 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2000年第17卷第5期

页      面：355-357页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070201[理学-理论物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No.19803050. 

主　　题：soliton envelope Soliton 

摘      要：Several envelope soliton fine structures have been observed in solar radio metric-wave emission.present a model of longitudinal modulational instability to explain these fine structures.It is found that this instability can only occur in the condition of sound velocity being larger than Alfvin velocity in corona.Therefore,the envelope soliton fine structures should display in the coronal region with high temperature and low magnetic 6eld,which corresponds to the solar radio emission in the region of meter and decameter wavelength.