摘要
一、引言 在地球弓激波前存在着低频磁流体波。这种低频磁流体波是太阳风在地球弓激波上的反射粒子和太阳风粒子之间相互作用产生的。根据人造卫星的观测资料可以得到,在地球弓激波前。
The low frequency hydromagnetic waves in front of the Earth's bow shock are generated by interaction between the solar wind and its reflected ions in the bow shock. According to the electromagnetic ion beam instability, the relationship between the low frequency hydro-magnetic waves and the interplanetary magnetic field are studied theorectically. The formulae are obtained for both resonant mode and non resonant mode respectively. Our results show that the low frequency hydromagnetic waves in front of bow shock is the source of low latitude Pc3 pulsations.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第2期239-241,共3页
Chinese Journal of Geophysics
基金
国家自然科学基金
关键词
地球
弓激波
低频
磁流体波
太阳风
Electromagnetic ion beam instability, Interplanetary magnetic field, Resonant mode, Nonresonant mode, Pc3 pulsation.
