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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 28, issue 2
Ann. Geophys., 28, 395–406, 2010
https://doi.org/10.5194/angeo-28-395-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 28, 395–406, 2010
https://doi.org/10.5194/angeo-28-395-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  03 Feb 2010

03 Feb 2010

The influence of Titan on Saturn kilometric radiation

J. D. Menietti1, S.-Y. Ye1, C. W. Piker1, and B. Cecconi2 J. D. Menietti et al.
  • 1University of Iowa, Department of Physics and Astronomy, 210 Van Allen Hall, Iowa City, IA 52242 USA
  • 2Observatoire de Paris, Meudon 92195, France

Abstract. Previous studies have shown that the occurrence probability of Saturn Kilometric Radiation (SKR) appears to be influenced by the local time of Titan. Using a more extensive set of data than the original study, we confirm the correlation of higher occurrence probability of SKR when Titan is located near local midnight. In addition, the direction finding capability of the Cassini Radio Plasma Wave instrument (RPWS) is used to determine if this radio emission emanates from particular source regions. We find that most source regions of SKR are located in the mid-morning sector of local time even when Titan is located near midnight. However, some emission does appear to have a source in the Saturnian nightside, consistent with electron precipitation from field lines that have recently mapped to near Titan.

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