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Saturnian Low-Frequency Drifting Radio Bursts: Statistical Properties and Polarization

    U. Taubenschuss, J. S. Leisner, G. Fischer, D. A. Gurnett, F. Nemec

Planetary Radio Emissions VII, pp. 115-124, 2011/12/28

Proceedings of the 7th International Workshop on Planetary, Solar and Heliospheric Radio Emissions held at Graz, Austria, September 15–17, 2010

doi: 10.1553/PRE7s115

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doi:10.1553/PRE7s115


Abstract

After Cassini’s arrival at planet Saturn, its Radio and Plasma Wave Science (RPWS) experiment has performed numerous observations of a new type of planetary radio emissions in the lower kHz frequency range (< 50kHz). These bursty emissions have time scales of a few to 15 minutes and occur as slowly drifting events in the time-frequency spectrogram. They have neither been detected by the Voyager spacecraft nor by Ulysses. As a first approach to this new phenomenon, results of a statistical study with regard to the observer’s position, i.e. Cassini’s orbital position, will be presented. Furthermore, aspects of polarization will be highlighted as far as appropriate goniopolarimetric (3-antenna) observations are available.