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

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982iowa.reptq....k&link_type=abstract

Progress Report Iowa Univ., Iowa City. Dept. of Physics and Astronomy.

Astronomy and Astrophysics

Astronomy

Electromagnetic Radiation, Electromagnetic Spectra, Emission Spectra, Nonthermal Radiation, Planetary Magnetospheres, Plasma Waves, Saturn (Planet), High Resolution, Jupiter (Planet), Radio Frequencies, Signatures, 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 I plasma wave data at Saturn has now confirmed the existence of weak emissions that have a spectrum characteristics 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 the Voyager 2 encounter, so that Jupiter may provide an additional source of the continuum radiation detected by Voyager 2.

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