A survey of electrostatic waves in Saturn's magnetosphere
A survey of electrostatic waves in Saturn's magnetosphere
复制标题
土星磁层静电波的调查
DOI：
10.1029/ja088ia11p08959
复制
发表时间：
1983
影响因子：
--
通讯作者：
D. D. Barbosa
中科院分区：
文献类型：
--
作者：
W. Kurth;F. Scarf;D. Gurnett;D. D. Barbosa
旅行者1号和2号等离子体波仪器提供了土星磁层静电波的初步观测结果。总的来说，土星上的辐射与地球和木星上的相似，尽管在一些细节特征上存在显著差异。本文概述了土星磁层中各种类型的静电波，包括朗缪尔波和电子回旋谐波发射。我们将总结各种类型的发射的时间和光谱特征、幅度和发生区域。将这些特征与地球和木星对应的特征进行比较，目的是了解磁层结构的主要差异如何导致观察到的差异。最后，我们利用电子回旋谐波发射理论，试图深入了解土星磁层中的电子分布和可能的波粒相互作用。
The Voyager 1 and 2 plasma wave instruments have provided initial observations of electrostatic waves in Saturn's magnetosphere. In general, the emissions at Saturn are similar to those found at earth and Jupiter, although there are significant differences in some of the detailed characteristics. In this paper we present an overview of the various types of electrostatic waves in the Saturnian magnetosphere, including Langmuir waves and electron cyclotron harmonic emissions. We shall summarize the temporal and spectral character, amplitude, and regions of occurrence for the various classes of emissions. These characteristics are compared with those of the terrestrial and Jovian counterparts with the goal of understanding how major differences in the magnetospheric configuration might contribute to the observed differences. Finally, we use the theory of electron cyclotron harmonic emissions to try to gain an insight into the electron distributions and possible wave-particle interactions in Saturn's magnetosphere.