A referactive soliton solution of magnetosonic wave is obtained in the small pitch angle between wave propagation and magnetic field. It can be used to explain simultaneously a milliseconds cavity in the plasma densit...A referactive soliton solution of magnetosonic wave is obtained in the small pitch angle between wave propagation and magnetic field. It can be used to explain simultaneously a milliseconds cavity in the plasma density, and a coexistent spike in the perpendicular electric field, which was observed by Freja satellite in the region of low altitude aurora.展开更多
基金the Strategic Priority Research Program of Chinese Academy of Sciences(XDB 41000000)the National Natural Science Foundation of China(41774170 and 41631071).
文摘A referactive soliton solution of magnetosonic wave is obtained in the small pitch angle between wave propagation and magnetic field. It can be used to explain simultaneously a milliseconds cavity in the plasma density, and a coexistent spike in the perpendicular electric field, which was observed by Freja satellite in the region of low altitude aurora.