globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069140
论文题名:
Electron dropout echoes induced by interplanetary shock: Van Allen Probes observations
作者: Hao Y.X.; Zong Q.-G.; Zhou X.-Z.; Fu S.Y.; Rankin R.; Yuan C.-J.; Lui A.T.Y.; Spence H.E.; Blake J.B.; Baker D.N.; Reeves G.D.
刊名: Geophysical Research Letters
ISSN: 0094-8971
EISSN: 1944-8702
出版年: 2016
卷: 43, 期:11
起始页码: 5597
结束页码: 5605
语种: 英语
英文关键词: drift shell splitting ; electron dropout echo ; energetic particle ; interplanetary shock ; magnetopause shadowing ; solar wind-magnetospheric coupling
Scopus关键词: Magnetopause ; Magnetosphere ; Probes ; Shock waves ; Drift shell ; Electron flux ; Energetic particles ; Energy dispersions ; Interplanetary shocks ; Radial migration ; Relativistic electron ; Shock induced ; Electrons
英文摘要: On 23 November 2012, a sudden dropout of the relativistic electron flux was observed after an interplanetary shock arrival. The dropout peaks at ∼1 MeV and more than 80% of the electrons disappeared from the drift shell. Van Allen twin Probes observed a sharp electron flux dropout with clear energy dispersion signals. The repeating flux dropout and recovery signatures, or “dropout echoes”, constitute a new phenomenon referred to as a “drifting electron dropout” with a limited initial spatial range. The azimuthal range of the dropout is estimated to be on the duskside, from ∼1300 to 0100 LT. We conclude that the shock-induced electron dropout is not caused by the magnetopause shadowing. The dropout and consequent echoes suggest that the radial migration of relativistic electrons is induced by the strong dusk-dawn asymmetric interplanetary shock compression on the magnetosphere. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973514468&doi=10.1002%2f2016GL069140&partnerID=40&md5=a68d68e0190c19d2f0dfe3f90b4e5697
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9934
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Institute of Space Physics and Applied Technology, Peking University, Beijing, China

Recommended Citation:
Hao Y.X.,Zong Q.-G.,Zhou X.-Z.,et al. Electron dropout echoes induced by interplanetary shock: Van Allen Probes observations[J]. Geophysical Research Letters,2016-01-01,43(11).
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