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Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: The numerical simulation of the generation of lower-band VLF chorus using a quasi-broadband Vlasov Hybrid Simulation code

Fig. 4

Time snapshot of the generation region of a strong riser from the previous simulation. The graphs show wave amplitude, resonant particle current Jr in phase with the wave electric field (blue curve) and current Ji in phase with the wave magnetic field (green curve). Note the strong sideband activity. The overall shape of the current curves is as expected for trapping in a parabolic inhomogeneity. Although the generation region is in the equatorial zone, the wave profile extends upstream from the equator by some 2000 km

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