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Energetic electrons associated with magnetic reconnection in the sheath of interplanetary coronal mass ejection
Huang ShiYong; Deng XiaoHua; Zhou Meng; Yuan ZhiGang; Li HuiMin; Wang DeDong; Huang, SY (reprint author), Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China.
Department空间科学部
Source PublicationCHINESE SCIENCE BULLETIN
2012
Volume57Issue:12Pages:1455-1460
ISSN1001-6538
Language英语
KeywordEnergetic Electrons Magnetic Reconnection Guide Field Interplanetary Coronal Mass Ejection
AbstractMagnetic reconnection is an important universal plasma dissipation process that converts magnetic energy into plasma thermal and kinetic energy, and simultaneously changes the magnetic field topology. In this paper, we report the first observation of energetic electrons associated with asymmetric reconnection in the sheath of an interplanetary coronal mass ejection. The magnetic field shear angle was about 151 degrees, implying guide-field reconnection. The width of the exhaust was about 8x10(4) km. The reconnection rate was estimated as 0.044-0.08, which is consistent with fast reconnection theory and previous observations. We observed flux enhancements of energetic electrons with energy up to 400 keV in this reconnection exhaust. The region where energetic electron fluxes were enhanced is located at one pair of separatrices in the higher density hemisphere. We discuss these observation results, and compare with previous observations and recent kinetic simulations.; Magnetic reconnection is an important universal plasma dissipation process that converts magnetic energy into plasma thermal and kinetic energy, and simultaneously changes the magnetic field topology. In this paper, we report the first observation of energetic electrons associated with asymmetric reconnection in the sheath of an interplanetary coronal mass ejection. The magnetic field shear angle was about 151 degrees, implying guide-field reconnection. The width of the exhaust was about 8x10(4) km. The reconnection rate was estimated as 0.044-0.08, which is consistent with fast reconnection theory and previous observations. We observed flux enhancements of energetic electrons with energy up to 400 keV in this reconnection exhaust. The region where energetic electron fluxes were enhanced is located at one pair of separatrices in the higher density hemisphere. We discuss these observation results, and compare with previous observations and recent kinetic simulations.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3262
Collection空间科学部
Corresponding AuthorHuang, SY (reprint author), Wuhan Univ, Sch Elect Informat, Wuhan 430072, Peoples R China.
Recommended Citation
GB/T 7714
Huang ShiYong,Deng XiaoHua,Zhou Meng,et al. Energetic electrons associated with magnetic reconnection in the sheath of interplanetary coronal mass ejection[J]. CHINESE SCIENCE BULLETIN,2012,57(12):1455-1460.
APA Huang ShiYong.,Deng XiaoHua.,Zhou Meng.,Yuan ZhiGang.,Li HuiMin.,...&Huang, SY .(2012).Energetic electrons associated with magnetic reconnection in the sheath of interplanetary coronal mass ejection.CHINESE SCIENCE BULLETIN,57(12),1455-1460.
MLA Huang ShiYong,et al."Energetic electrons associated with magnetic reconnection in the sheath of interplanetary coronal mass ejection".CHINESE SCIENCE BULLETIN 57.12(2012):1455-1460.
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