Study of the North West Cape electron belts observed by DEMETER satellite

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Study of the North West Cape electron belts observed by DEMETER satellite
	Li XQ(李新乔); Ma YQ(马宇倩); 王平(天); Li, XQ; Ma, YQ; Wang, P; Wang, HY; Lu, H; Zhang, XM; Huang, JP
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2012
卷号	117 页码:A04201
英文摘要	We analyzed observation data collected by the Instrument for the Detection of Particles (IDP) on board the DEMETER satellite during a period of 17 months in 2007 and 2008. In the meantime, the VLF transmitter located at North West Cape (NWC) ground station was shut down during 7 months and working for a total of 10 months. By an (on-off) method, our analysis for the first time revealed in detail the transient properties of the space electron precipitation belt which is induced by the man-made VLF wave emitted from NWC. We mapped the electron flux distribution and figured out the space regions that the NWC belt covered. The NWC electron spectrograms have been investigated in a wide range of the McIlwain parameter L (1.1-3.0). Furthermore, we obtained the averaged energy spectra of the NWC electrons within the drift loss cone and compared their characteristics during daytime and nighttime. Our results confirm the previous studies of the enhancement of NWC electrons, the wisp structure, and the day/night difference of the electron flux. In addition, more detailed information is provided. We provide not only evidence of a momentary flux enhancement up to 3 orders of magnitude but also a flux reduction at higher L shells with a maximum up to 60% of the original value. For the first time, the energy spectra of NWC electrons covering the entire IDP energy band are presented for both nighttime and daytime and are quantitatively compared. At the end, our results are discussed, and their agreement with the theory of wave-particle interactions is checked.
学科主题	Astronomy & Astrophysics
收录类别	SCI
WOS记录号	WOS:000302499200001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224721]
专题	高能物理研究所_粒子天体物理中心
推荐引用方式 GB/T 7714	Li XQ,Ma YQ,Wang P,et al. Study of the North West Cape electron belts observed by DEMETER satellite[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2012,117:A04201.
APA	李新乔.,马宇倩.,王平.,Li, XQ.,Ma, YQ.,...&王辉.(2012).Study of the North West Cape electron belts observed by DEMETER satellite.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,117,A04201.
MLA	李新乔,et al."Study of the North West Cape electron belts observed by DEMETER satellite".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 117(2012):A04201.