Electromagnetic disturbances observed near the dip region ahead of   dipolarization front

doi:10.1002/2016GL068033

CORC > 北京大学 > 地球与空间科学学院

	Electromagnetic disturbances observed near the dip region ahead of dipolarization front
	Zhao, D. ; Fu, S. Y. ; Sun, W. J. ; Parks, G. K. ; Zong, Q. G. ; Shi, Q. Q. ; Pu, Z. Y. ; Cui, Y. B. ; Wu, T. ; Liu, J. ; Zhou, X. Z.
刊名	GEOPHYSICAL RESEARCH LETTERS
	2016
关键词	WAVE-PARTICLE INTERACTIONS PLASMA SHEET FLUX ROPES EARTHS MAGNETOTAIL THEMIS ACCELERATION MAGNETOMETER INSTRUMENT DECREASE BUBBLES
DOI	10.1002/2016GL068033
英文摘要	Dipolarization front (DF) is a thin magnetic structure embedded in fast flows in the magnetotail, which plays an important role in particle acceleration, flow braking, wave excitation, and other related processes. Electromagnetic disturbances near the magnetic dip region in front of DFs are investigated using Time History of Events and Macroscale Interactions during Substorms probe observations in this paper. Strong magnetic field and electric field fluctuations, with several wave bands below and around the lower hybrid frequency, are found in an event on 21 March 2008. The properties of the wave are similar to that of magnetosonic wave. Detailed analyses show that the phase space density for ions in the perpendicular direction has a positive slope near the local Alfven speed, which is a possible free-energy source for the generation of the wave. This type of ion distribution could result from the earthward reflected ions ahead of DF, though other forming mechanism could not be fully ruled out.; National Nature Science Foundation of China [41474139, 41421003, 41274167]; NASA [NAS5-02099]; German Ministry for Economy and Technology; German Center for Aviation and Space (DLR) [50 OC 0302]; SCI(E); EI; ARTICLE; suiyanfu@pku.edu.cn; 7; 3026-3034; 43
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437391]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhao, D.,Fu, S. Y.,Sun, W. J.,et al. Electromagnetic disturbances observed near the dip region ahead of dipolarization front[J]. GEOPHYSICAL RESEARCH LETTERS,2016.
APA	Zhao, D..,Fu, S. Y..,Sun, W. J..,Parks, G. K..,Zong, Q. G..,...&Zhou, X. Z..(2016).Electromagnetic disturbances observed near the dip region ahead of dipolarization front.GEOPHYSICAL RESEARCH LETTERS.
MLA	Zhao, D.,et al."Electromagnetic disturbances observed near the dip region ahead of dipolarization front".GEOPHYSICAL RESEARCH LETTERS (2016).