Detection of nonthermal continuum radiation in Saturn's magnetosphere

Details Detection of nonthermal continuum radiation in Saturn's magnetosphere Detection of nonthermal continuum radiation in Saturn's magnetosphere

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..889k&link_type=abstract

Geophysical Research Letters, vol. 9, Aug. 1982, p. 889-892. Research supported by the TRW, Inc. and U.S. Navy;

Physics

19

Nonthermal Radiation, Planetary Magnetospheres, Planetary Radiation, Saturn Atmosphere, Continuous Radiation, Radio Spectra, Voyager 1 Spacecraft, Voyager 2 Spacecraft

Scientific paper

A detailed analysis of high resolution wideband data from the Voyager 1 and 2 plasma wave receivers has revealed the presence of heretofore undiscovered nonthermal continuum radiation trapped within the Saturnian magnetosphere. The discovery of Saturnian trapped continuum radiation fills a disturbing void in the Saturnian radio spectrum. On the basis of observations at both the earth and Jupiter it was expected that continuum radiation should be a pervasive signature of planetary magnetospheres in general. Special processing of the Voyager 1 plasma wave data at Saturn has now confirmed the existence of weak emissions that have a spectrum characteristic of trapped continuum radiation. Similar radiation was also detected by Voyager 2; however, in this case it is not certain that Saturn was the only source. Considerable evidence exists which suggests that Saturn may have been immersed in the Jovian tail during Voyager 2 encounter, so that Jupiter may provide an additional source of the continuum radiation detected by Voyager 2.

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