Nonlinear sub-cyclotron resonance as a formation mechanism for gaps in banded chorus

Xiangrong Fu, Zehua Guo, Chuanfei Dong +1

An interesting characteristic of magnetospheric chorus is the presence of a frequency gap at $\omega \simeq 0.5{\Omega }_e$, where ${\Omega }_e$ is the electron cyclotron angular frequency. Recent choru…