Multiple peaks in the spectrum of inner belt electrons
Multiple peaks in the spectrum of inner belt electrons
复制标题
内带电子能谱中的多个峰
DOI：
10.1029/ja090ia09p08333
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发表时间：
1985
影响因子：
--
通讯作者：
H. Voss
中科院分区：
文献类型：
--
作者：
D. Datlowe;W. L. Imhof;E. Gaines;H. Voss
本文报道了内磁层高能电子能谱的系统研究。观测是在1982年6月至11月期间从低空卫星S81-1进行的。电子能谱仪的能量范围为6 keV至1 MeV。在大多数地理区域，电子能谱是平滑的，但在南大西洋异常区，电子能谱往往由一系列宽峰组成。峰的数量通常为三个，但可以多达八个，或者在某些情况下可以没有峰。峰谷比通常是一个数量级或更大。在较高的海拔高度，从100千电子伏到1兆电子伏以上的电子光谱峰值，早先曾与地磁风暴一起报道过。在S81-1观测的250公里标称高度上，在大多数日子和所有地磁活动水平上都观测到高能电子谱的峰值。
We report on a systematic study of energetic electron spectra in the inner magnetosphere. The observations were made from the low-altitude satellite S81-1 during the period June-November 1982. The electron spectrometers covered the energy range 6 keV to 1 MeV. In most geographic areas the electron energy spectra are smooth, but in the region of the South Atlantic Anomaly the spectra often consist of a series of broad peaks. The number of peaks is typically three, but may be as many as eight, or in some cases there may be none. The peak-to-valley ratios are often an order of magnitude or more. Peaks in the spectra of electrons from 100 keV to above 1 MeV at higher altitudes have been reported earlier in conjunction with geomagnetic storms. At the 250-km nominal altitude of the S81-1 observations, peaks in the energetic electron spectra are observed on most days and at all levels of geomagnetic activity.