Obtain martian magnetic pileup boundary by spectrum of low energy electrons

被引：0
|
作者：
LI ChenFang [1 ]
ZOU Hong [1 ]
CHEN HongFei [1 ]
SHI WeiHong [1 ]
YU XiangQian [1 ]
机构：
[1] Institute of Space Physics and Applied Technology, Peking University
来源：
Science China(Technological Sciences) | 2013年 / 09期
关键词：
Mars exploration; magnetic pileup boundary; low energy electron;
D O I：
暂无
中图分类号：
P185.3 [火星];
学科分类号：
070401 ;
摘要：
The electron spectrometer of Mars Express (MEX) provides the flux of low energy electrons (<20 keV) near Mars. 96 pieces of continuously measured data are analyzed, and the crossings of the magnetic pileup boundary (MPB) can be determined by fitting the energy spectrum of the low energy electrons. The shape and position of the MPB can be gained from these crossings, and they are in good agreement with the results obtained by the Mars Global Surveyor (MGS) and Phobos-2. In addition, we classify these crossings based on the crustal magnetic field nearby. It turns out that the position of MPB near the strong (>50 nT) crustal magnetic field is higher than the position of the MPB near the weak (<10 nT) crustal magnetic field. This result reflects the effect of the crustal magnetic field on the interaction between the Martian atmosphere and solar wind.
引用
收藏
页码：2349 / 2354
页数：6
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