Particle simulation of rising tone emissions triggered by waves with different amplitudes

VLF triggered emissions are generated through a resonant interaction by artificially injected triggering wave in the equatorial region of the Earth´s magnetosphere. However, the condition for generation of the triggered emissions is less understanding. The simulation study was carried out by full particle code for generation of triggered emissions, which successfully reproduced triggered emissions. In the study, we perform a parametric simulation with different amplitudes of triggering waves and different densities of energetic electrons, and they are compared with a recently developed theory for triggered emissions.