Electron acceleration by Langmuir turbulence in ionospheric heating

作     者：MoRan Liu Chen Zhou Ting Feng MoRan Liu;Chen Zhou;Ting Feng

作者机构：Department of Space PhysicsSchool of Electronic InformationWuhan UniversityWuhan 430072China 

出 版 物：《Earth and Planetary Physics》 (地球与行星物理（英文版）)

年 卷 期：2022年第6卷第6期

页      面：529-535页

核心收录：

学科分类：070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：supported by the National Natural Science Foundation of China (NSFC Grant Nos. 42104150, 42074187, 41774162, and 41704155) the Foundation of the National Key Laboratory of Electromagnetic Environment (Grant No. 6142403200303) the Chinese Academy of Sciences, Key Laboratory of Geospace Environment the University of Science & Technology of China (Grant No. GE2020-01) the Fundamental Research Funds for the Central Universities (Grant No. 2042021kf0020) the Excellent Youth Foundation of Hubei Provincial Natural Science Foundation (Grant No. 2019CFA054) 

主　　题：electron acceleration Langmuir turbulence electron holes parametric decay instability 

摘      要：In this study,we investigate the generation of parametric decay instability,Langmuir turbulence formation,and electron acceleration in ionospheric heating via a two-fluid model using the Fokker-Planck equation and Vlasov-Poisson system *** simulation results of both the magnetofluid model and the kinetic model demonstrate the dynamics of electron ***,the results of the Vlasov-Poisson simulations suggest the formation of electron holes in phase space at the same spatial scale as the Langmuir wave,which are shown to be related to electron *** addition,electron acceleration is enhanced through the extension of the wavenumber spectrum caused by strong Langmuir turbulence,leading to more electron holes in phase space.