Voyager Detection of Nonthermal Radio Emission from Saturn

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Science  12 Sep 1980:
Vol. 209, Issue 4462, pp. 1238-1240
DOI: 10.1126/science.209.4462.1238


The planetary radio astronomy experiment on board the Voyager spacecraft has detected bursts of nonthermal radio noise from Saturn occurring near 200 kilohertz, with a peak flux density comparable to higher frequency Jovian emissions. The radiation is right-hand polarized and is most likely emitted in the extraordinary magnetoionic mode from Saturn's northern hemisphere. Modulation that is consistent with a planetary rotation period of 10 hours 39.9 minutes is apparent in the data.