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Detailed Reference Information
Zwickl et al. 1980
Zwickl, R.D., Krimigis, S.M., Armstrong, T.P. and Lanzerotti, L.J. (1980). Ions of Jovian origin observed by Voyager 1 and 2 in interplanetary space. Geophysical Research Letters 7: doi: 10.1029/GL007i006p00453. issn: 0094-8276.

Burst-like and long-lived ion fluxes (E>30 keV) of Jovian origin have been observed in interplanetary space by the LECP instrument on the Voyager 1 and 2 spacecraft. Burst (few minute durtion) events are observed at distances greater than 0.6 AU (1200 Rj) from Jupiter. These events are highly anisotropic and possess steep energy spectra, while long-lived (>8 hour duration) events have relatively steady fluxes at low energies, strong anisotropies that decay with time, and a variable high energy component. Both types of events usually display simultaneous onsets and sharp cutoffs for all energies, an excess of atomic number Z?6 particles compared to solar and interplanetary events, and particle flow directions pointed away from Jupiter along the local interplanetary magnetic field. The origin for the long-lived events appears to be inside th bow shock of the planet.

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Geophysical Research Letters
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American Geophysical Union
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