Survey of Whistler-Mode Wave Amplitudes and Frequency Spectra in Jupiter's Magnetosphere

We present statistical distributions of whistler-mode chorus and hiss waves at frequencies ranging from the local proton gyrofrequency to the equatorial electron gyrofrequency (f(ce,eq)) in Jupiter's magnetosphere based on Juno measurements. The chorus wave power spectral densities usually follow the f(ce,eq) variation with major wave power concentrated in the 0.05f(ce,eq)-f(ce,eq) frequency range. The hiss wave frequencies are less dependent on f(ce,eq) variation than chorus with major power concentrated below 0.05f(ce,eq), showing a separation from chorus at M < 10. Our survey indicates that chorus waves are mainly observed at 5.5 < M < 13 from the magnetic equator to 20 degrees latitude, consistent with local wave generation near the equator and damping effects. The hiss wave powers extend to 50 degrees latitude, suggesting longer wave propagation paths without attenuation. Our survey also includes the whistler-mode waves at high latitudes which may originate from the Io footprint, auroral hiss, or propagating hiss waves reflected to high M shells.