Energetic /approximately 100-keV/ tailward-directed ion beam outside the Jovian plasma boundary

Details Energetic /approximately 100-keV/ tailward-directed ion beam outside the Jovian plasma boundary Energetic /approximately 100-keV/ tailward-directed ion beam outside the Jovian plasma boundary

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7...13k&link_type=abstract

Geophysical Research Letters, vol. 7, Jan. 1980, p. 13-16.

Physics

4

Energetic Particles, Heavy Ions, High Temperature Plasmas, Ion Beams, Jupiter Atmosphere, Plasmasphere, Energy Spectra, Ion Temperature, Magnetospheric Ion Density, Particle Acceleration, Planetary Magnetic Fields, Planetary Magnetospheres, Solar Wind, Voyager Project, Jupiter, Plasmas, Ions, Voyager 2, Energy, Density, Dynamics, Magnetic Fields, Magnetosheath, Experiments, Procedure, Data, Observations, Spectrum, Low Energy Charged Particle Experiment, Equipment, Anisotropy, Intensity, Elements, Solar Wind

Scientific paper

The hot plasma instrument on the Voyager-2 spacecraft measured a nearly monoenergetic (100 keV) ion beam several hours after crossing the Jovian plasma boundary on the nightside of the planet. The beam, deduced to consist primarily of heavy ions, persisted for about four hours and originated from the general direction of Jupiter. The energy density of the beam was about several times the energy density of the magnetic field (beta greater than 1). This beam, a product of an as yet not understood Jovian plasma acceleration mechanism, provides a dramatic example of the energetic dynamics of Jupiter's magnetosphere.

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