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Test Particle Simulation Study on Observations of Scientific Satellites EXOS-C and ICE

科学卫星EXOS-C和ICE观测的测试粒子模拟研究

基本信息

批准号：
63540320
负责人：
KAYA Nobuyuki
金额：
$ 1.15万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1989
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63540320/
关键词：
Test particle simulation EXOS-C Satellite EXOS-D Satellite ICE Satellite Upward Flowing Ion Ion Conics MHD Waves Cyclotron resonance 人工衛星EXOSーD オ-ロラ加速機構ミラ-運動 E×Bドリフトテスト粒子シミュレーションホイッスラー波降下粒子オーロラ動画

项目摘要

Test particle simulations were carried out in order to examine whistler wave packets associated with large MHD waves near the comet Glacobini-Zinner, and upward flowing ions and ion conics observed in the polar region. The important results are as follows:1. Excitation of the whistler wave packets. Test particle simulation showed that the interaction of water group ions with the linearly polarized steepening MS wave and whistler precursors leads to Ion phase trapping within the whistler packet. The ions resonating with the whistler waves can give their kinetic energy to the wave field, thus leading whistler wave amplification.2. Relation between the energy of UFI and pitch angle distribution of upward electrons. The electrons had a very asymmetrical distribution of pitch angles at the appearance of the UFIs, while it had a symmetrical one without the UFIs. The result of the test particle simulation shows that the potentials of the acceleration region estimated by the pitch angle distributions of the upward electrons are consistent to the energies of the UFIs.3. Dispersions of mass and pitch angles in the ion conics event. Trapped lighter ions were detected in the region of the higher latitude, while upward heavier ions were at the lower latitude. The result of the simulation Indicates that the ions were dispersed by the E X B drift due to the difference of the time-of-arrival.

为了检验与彗星Glacobini-Zinner附近的大MHD波相关的哨声波包，以及在极地观测到的向上流动的离子和离子曲线，进行了测试粒子模拟。主要研究结果如下：哨声波包的激励。实验粒子模拟表明，水基离子与线极化陡化MS波和哨声前体的相互作用导致哨声包内的离子相捕获。与哨声波共振的离子将其动能传递给波场，从而导致哨声波的放大。UFI能量与向上电子俯仰角分布的关系。电子有一个非常不对称的俯仰角分布在外观的ufi，而它有一个对称的没有ufi。实验粒子模拟结果表明，由向上电子俯仰角分布估计的加速区电位与ufi的能量是一致的。离子锥事件中质量和俯仰角的色散。捕获的较轻离子位于高纬度区域，向上的较重离子位于低纬度区域。模拟结果表明，由于到达时间的差异，离子被E X B漂移分散。