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Magnetospheric ray tracing studiesUsing a model of Jupiter's magnetized plasma environment, radiation raypaths were calculated with a three-dimension ray tracing program. It is assumed that energetic particles produce the emission in the planet's auroral zone at frequencies just above the electron gyrofrequencies. This radiation is generated in narrow sheets defined by the angle of a ray with respect to the magnetic field line. By specifying the source position: latitude, longitude, and radial distance from the planet, signatures in the spectrum of frequency versus time seen by Voyager 1 and 2 were duplicated. The frequency range and the curvature of the decametric arcs in these dynamic spectra are the result of the geometry of the radiation sheets (imposed by the plasma and by the B-field) and illumination of Voyager 1 and 2 as the rotating magnetosphere mimics a pulsar.
Document ID
Document Type
Conference Paper
Six, N. F.
(University of Western Kentucky Bowling Green, KY, United States)
Date Acquired
August 11, 2013
Publication Date
August 1, 1982
Publication Information
Publication: NASA. Marshall Space Flight Center The 1982 NASA(ASEE Summer Fac. Fellowship Program
Subject Category
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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