Narrowband Electromagnetic Emissions from Jupiter's Magnetosphere.

摘要

Recent studies of wideband plasma wave data from the Voyager 1 and 2 flybys of Jupiter have revealed the existence of narrowband radio emissions in the frequency range 1 -12 kHz. These narrowband emissions are very similar to narrowband emissions previously discovered in the magnetospheres of Earth and Saturn, and are believed to be produced by mode conversion from electron cyclotron waves near the upper hybrid resonance frequency. This mode conversion process is apparently one of the basic mechanisms for generating planetary radio emissions. In this paper we describe the characteristics of the Jovian narrowband emissions and discuss possible mechanisms for generating these emissions.