Transpolar arc observation after solar wind entry into the high-latitude magnetosphere

被引：20

作者：

Mailyan, B. ^{[1
,2
]}

Shi, Q. Q. ^{[1
]}

Kullen, A. ^{[3
]}

Maggiolo, R. ^{[4
]}

Zhang, Y. ^{[5
]}

Fear, R. C. ^{[6
]}

Zong, Q. -G. ^{[7
]}

Fu, S. Y. ^{[7
]}

Gou, X. C. ^{[1
]}

Cao, X. ^{[8
]}

Yao, Z. H. ^{[9
]}

Sun, W. J. ^{[7
]}

Wei, Y. ^{[8
]}

Pu, Z. Y. ^{[7
]}

机构：

[1] Shandong Univ, Sch Space Sci & Phys, Weihai, Peoples R China

[2] Yerevan Phys Inst, Cosm Ray Div, Yerevan 375036, Armenia

[3] Royal Inst Technol, Sch Elect Engn, Space & Plasma Phys, Stockholm, Sweden

[4] Belgian Inst Space Aeron, Space Plasma, Brussels, Belgium

[5] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA

[6] Univ Southampton, Sch Phys & Astron, Southampton, Hants, England

[7] Peking Univ, Inst Space Phys & Appl Technol, Beijing 100871, Peoples R China

[8] Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China

[9] UCL, Mullard Space Sci Lab, London, England

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2015年 / 120卷 / 05期

基金：

中国博士后科学基金;

关键词：

POLAR AURORAL ARCS; THETA-AURORA; BIRKELAND CURRENTS; NORTHWARD IMF; CAP ARCS; MODEL; CONVECTION; DAYSIDE; PLASMA; GENERATION;

D O I：

10.1002/2014JA020912

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently, Cluster observations have revealed the presence of new regions of solar wind plasma entry at the high-latitude magnetospheric lobes tailward of the cusp region, mostly during periods of northward interplanetary magnetic field. In this study, observations from the Global Ultraviolet Imager (GUVI) experiment on board the TIMED spacecraft and Wideband Imaging Camera imager on board the IMAGE satellite are used to investigate a possible link between solar wind entry and the formation of transpolar arcs in the polar cap. We focus on a case when transpolar arc formation was observed twice right after the two solar wind entry events were detected by the Cluster spacecraft. In addition, GUVI and IMAGE observations show a simultaneous occurrence of auroral activity at low and high latitudes after the second entry event, possibly indicating a two-part structure of the continuous band of the transpolar arc.

引用

页码：3525 / 3534

页数：10

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