Modeling the Evolution of Chorus Waves into Hiss Waves in the Magnetosphere  

作　　者：贺艺华 周庆华 杨昶 周晓萍 刘斯 唐立军 肖伏良 

机构地区：[1]School of Physics and Electronic Sciences, Changsha University of Science and Technology [2]Key Laboratory of Basic Plasma Physics, Chinese Academy of Sciences

出　　处：《Plasma Science and Technology》2014年第7期657-660,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Nos.40925014,41274165,41204114);the Open Research Program from Key Laboratory of Basic Plasma Physics,Chinese Academy of Sciences(CAS);the Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province;the Construct Program of the Key Discipline in Hunan Province,China

摘　　要：In this study, we analyze Cluster observations of whistler-mode chorus and hiss waves during the event of August 19-21, 2006. Chorus is present outside the plasmasphere and hiss occurs inside the plasmasphere. Using a recently constructed plasma boundary layer model, we perform a ray-tracing study on the propagation of chorus. Numerical results show that chorus can penetrate into the plasmasphere through the plasma boundary layer, evolving into hiss. The current data analysis and modeling provide a further observational support for the previous findings that chorus is the origin of plasmaspheric hiss.In this study, we analyze Cluster observations of whistler-mode chorus and hiss waves during the event of August 19-21, 2006. Chorus is present outside the plasmasphere and hiss occurs inside the plasmasphere. Using a recently constructed plasma boundary layer model, we perform a ray-tracing study on the propagation of chorus. Numerical results show that chorus can penetrate into the plasmasphere through the plasma boundary layer, evolving into hiss. The current data analysis and modeling provide a further observational support for the previous findings that chorus is the origin of plasmaspheric hiss.

关 键 词：cluster data CHORUS hiss ray tracing 

分 类 号：O539[理学—等离子体物理]