Discrete, stimulated auroral kilometric radiation observed in the Galileo and DE 1 wideband data
Discrete, stimulated auroral kilometric radiation observed in the Galileo and DE 1 wideband data
复制标题
在 Galileo 和 DE 1 宽带数据中观察到的离散受激极光千米辐射
DOI：
10.1029/96ja00362
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发表时间：
1996
影响因子：
--
通讯作者：
J. Groene
中科院分区：
文献类型：
--
作者：
J. Menietti;H. Wong;W. Kurth;D. Gurnett;L. Granroth;J. Groene
伽利略号航天器在1992年第二次与地球相遇期间观测到强烈的极光千米辐射。航天器上等离子体波仪器的宽带接收器获得的高分辨率频率-时间谱图往往显示出离散的负斜率特征，每个特征持续几秒钟。这些特征可能是由于脉冲波生成和固有速度色散和/或由沿磁场线向上行进通过源极区域的等离子体波引起的源激励。我们提出了这些签名的几个例子，也看到了动态资源管理器1号卫星，并检查其生成的场景。
The Galileo spacecraft observed intense auroral kilometric radiation during the second Earth encounter in 1992. High-resolution frequency-versus-time spectrograms obtained by the wideband receiver of the plasma wave instrument on board the spacecraft often show discrete, negative-slope features each extending over a period of several seconds. These features may be due to impulsive wave generation and intrinsic velocity dispersion and/or a source stimulation by plasma waves traveling up the magnetic field line through the source region. We present several examples of these signatures, seen also on the Dynamics Explorer 1 satellite, and examine scenarios for their generation.