Impulsive radio discharges near Saturn
In: Nature, Jg. 292 (1981-08-20)
Online
report
Zugriff:
Nonthermal radio emissions from the Saturn system were first detected by the Voyager planetary radio astronomy (PRA) experiment on board Voyager 1 in January 1980. Since then emission between 100 kHz and 1 MHz from the planet, termed Saturn kilometric radiation (SKR), has been received almost continuously. A description is presented of eight characteristics which have been fairly well defined by the Voyager 1 encounter. These include a very flat broadband frequency spectrum, a period of approximately 10 h 10 min, a change in the envelope shape of episodes between pre and postencounter, an intensity population structure typical of plural populations, and an episodic structure of a width of approximately 180 deg. It was found that postencounter episodes continue for about three times as long as preencounter ones, and that postencounter bursts are left-circularly polarized at high frequencies. At least one episode shows the onset of high frequency events some time before that of lower frequency ones.
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Impulsive radio discharges near Saturn
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Autor/in / Beteiligte Person: | Evans, D. R ; Warwick, J. W ; Pearce, J. B ; Carr, T. D ; Schauble, J. J |
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Zeitschrift: | Nature, Jg. 292 (1981-08-20) |
Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 1981 |
Medientyp: | report |
DOI: | 10.1038/292716a0 |
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