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The global plasma environment of Io as inferred from the Galileo plasma wave observations
Journal article   Open access   Peer reviewed

The global plasma environment of Io as inferred from the Galileo plasma wave observations

Philippe Louarn, S. Perraut, A. Roux, D. Gurnett, W. Kurth and S. Bolton
Geophysical research letters, Vol.24(17), pp.2115-2118
09/01/1997
DOI: 10.1029/97GL01850
url
https://doi.org/10.1029/97GL01850View
Published (Version of record) Open Access

Abstract

We take advantage of a partial and a total occultation of the jovian radio sources observed during the flyby of Io to characterize the plasma environment of this moon. We show that it presents a strong upstream / downstream asymmetry. A dense plasma structure (n > 5 × 104 cm−3) extends far from Io (at least 1000 km) in the wake direction whereas no extended dense region is found upstream. The dense region in the wake could correspond to a the stagnation region of the flow of the corotating plasma.

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