Simultaneous satellite and ground-based observations of polar cap aurora

被引：3
|
作者：
Yahnin, AG [1 ]
Sergeev, VA [1 ]
机构：
[1] ST PETERSBURG STATE UNIV, INST PHYS, ST PETERSBURG 198904, RUSSIA
来源：
THREE-DIMENSIONAL MAGNETOSPHERE | 1996年 / 18卷 / 08期
关键词：
D O I：
10.1016/0273-1177(95)00977-9
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
On August 20, 1979 (15-17 UT) the sun-aligned polar cap arcs have been observed at the Antarctic station Vostok Simultaneously NOAA polar spacecraft detected in the polar cap a several hundred kilometers wide region of electron and proton precipitation over those arcs, and similar precipitation structure was also observed in the northern polar cap. Within this auroral precipitation regions (interpreted as a signature of the Theta-aurora) the >30 keV proton precipitation have been also found with the intensities comparable with those in the auroral zone. These observations suggest that the Theta-aurora precipitation has its origin on the closed field lines of the plasma sheet.
引用
收藏
页码：111 / 114
页数：4
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