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Rapid loss of the plasma sheet energetic electrons associated with the growth of whistler mode waves inside the bursty bulk flows

文献类型：期刊论文

作者Li, L. Y.1; Yu, J.1; Cao, J. B.1; Zhang, D.2,3; Wei, X. H.2; Rong, Z. J.4,5; Yang, J. Y.1; Fu, H. S.1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2013-11-01
卷号118期号:11页码:7200-7210
ISSN号2169-9380
关键词plasma sheet bursty bulk flow energetic electron loss anisotropy of electron temperature whistler mode wave growth pitch angle scattering
DOI10.1002/2013JA019109
文献子类Article
英文摘要During the interval similar to 07:45:36-07:54:24UT on 24 August 2005, Cluster satellites (C1 and C3) observed an obvious loss of energetic electrons (similar to 3.2-95keV) associated with the growth of whistler mode waves inside some bursty bulk flows (BBFs) in the midtail plasma sheet (X-GSM similar to-17.25 R-E). However, the fluxes of the higher-energy electrons (128keV) and energetic ions (10-160keV) were relatively stable in the BBF-impacted regions. The energy-dependent electron loss inside the BBFs is mainly due to the energy-selective pitch angle scatterings by whistler mode waves within the time scales from several seconds to several minutes, and the electron scatterings in different pitch angle distributions are different in the wave growth regions. The plasma sheet energetic electrons have mainly a quasi-perpendicular pitch angle distribution (30 degrees<<150 degrees) during the expansion-to-recovery development of a substorm (AE index decreases from 1677nT to 1271nT), and their loss can occur at almost all pitch angles in the wave growth regions inside the BBFs. Unlike the energetic electrons, the low-energy electrons (similar to 0.073-2.1keV) have initially a field-aligned pitch angle distribution (0 degrees 30 degrees and 150 degrees 180 degrees) in the absence of whistler mode waves, and their loss in field-aligned directions is accompanied by their increase in quasi-perpendicular directions in the wave growth regions, but the loss of the low-energy electrons inside the BBFs is not obvious in the presence of their large background fluxes. These observations indicate that the resonant electrons in an anisotropic pitch angle distribution mainly undergo the rapid pitch angle scattering loss during the wave-particle resonances.
WOS关键词MAGNETIC-FIELD ; CLUSTER ; DIPOLARIZATION ; MAGNETOTAIL ; DIFFUSION ; SUBSTORM ; WIND
WOS研究方向Astronomy & Astrophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000329992900032
资助机构NSFC(41074119 ; NSFC(41074119 ; 973 Program(2011CB811404) ; 973 Program(2011CB811404) ; 41374165 ; 41374165 ; 40604018 ; 40604018 ; 41174141 ; 41174141 ; 40904042 ; 40904042 ; 41174144) ; 41174144) ; NSFC(41074119 ; NSFC(41074119 ; 973 Program(2011CB811404) ; 973 Program(2011CB811404) ; 41374165 ; 41374165 ; 40604018 ; 40604018 ; 41174141 ; 41174141 ; 40904042 ; 40904042 ; 41174144) ; 41174144) ; NSFC(41074119 ; NSFC(41074119 ; 973 Program(2011CB811404) ; 973 Program(2011CB811404) ; 41374165 ; 41374165 ; 40604018 ; 40604018 ; 41174141 ; 41174141 ; 40904042 ; 40904042 ; 41174144) ; 41174144) ; NSFC(41074119 ; NSFC(41074119 ; 973 Program(2011CB811404) ; 973 Program(2011CB811404) ; 41374165 ; 41374165 ; 40604018 ; 40604018 ; 41174141 ; 41174141 ; 40904042 ; 40904042 ; 41174144) ; 41174144)
源URL[http://ir.iggcas.ac.cn/handle/132A11/86800]  
专题中国科学院地质与地球物理研究所
通讯作者Li, L. Y.
作者单位1.Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China
2.Chinese Acad Sci, State Key Lab Space Weather, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Ionospher Environm, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Li, L. Y.,Yu, J.,Cao, J. B.,et al. Rapid loss of the plasma sheet energetic electrons associated with the growth of whistler mode waves inside the bursty bulk flows[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(11):7200-7210.
APA Li, L. Y..,Yu, J..,Cao, J. B..,Zhang, D..,Wei, X. H..,...&Fu, H. S..(2013).Rapid loss of the plasma sheet energetic electrons associated with the growth of whistler mode waves inside the bursty bulk flows.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(11),7200-7210.
MLA Li, L. Y.,et al."Rapid loss of the plasma sheet energetic electrons associated with the growth of whistler mode waves inside the bursty bulk flows".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.11(2013):7200-7210.

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来源：地质与地球物理研究所

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