Image Details
Caption: Figure 10.
UH mode growth rates and radiation spectra under three cases: no modulation (left column), modulation of the energetic electron density (middle column), and modulation of the magnetic field direction (right column). From top to bottom: maximum growth rate versus ωpe/Ωce (85–87, corresponding to 0–1 s); frequency distribution; radiation spectra.
© 2026. The Author(s). Published by the American Astronomical Society.