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The plasma physics of the Jovian decameter radiation.We have assumed that the decameter radiation from Jupiter is produced near the local electron gyrofrequency and is amplified as it propagates out of the Jovian magnetosphere. We have derived the growth rate for radiation that propagates almost perpendicular to the direction of the magnetic field. When the electrons are described by a loss-cone distribution function, the growth rate is large enough to lead to a large amplification factor over a source of 100-4000 km, depending on the choice of parameters. Because we expect low-energy electrons to be trapped in the Jovian dipole field regardless of the position of the satellite Io, we maintain that this model provides a plausible mechanism for the decametric radiation not associated with Io.
Document ID
19720050873
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Goldstein, M. L.
(Tel Aviv, University, Tel Aviv, Israel; NASA, Goddard Space Flight Center Laboratory for Extraterrestrial Physics, Greenbelt, Md., United States)
Eviatar, A.
(Tel Aviv University Tel Aviv, Israel)
Date Acquired
August 6, 2013
Publication Date
July 1, 1972
Publication Information
Publication: Astrophysical Journal
Volume: 175
Subject Category
Space Sciences
Accession Number
72A34539
Distribution Limits
Public
Copyright
Other

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