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Zebra spectral structures in Jovian decametric radio emissions

Master thesis project by Dipl.-Ing. Stephanie Rošker, BSc.
supervised by Univ.-Prof.Mag.Dr.Dr.h.c. Helmut O. Rucker
6-month employment financed by the Oelzelt-Newin foundation of the Austrian Academy of Sciences
Start: August 1, 2015

Jupiter emits intense coherent non-thermal radiation in a wide frequency range. Recent observations of the Jovian decametric radio emission (= the strongest component of Jovian radiation) enabled the first detection of zebra stripe-like patterns in the MHz-range (see Figure 1). The ground-based radio telescope URAN-2 in Poltava, Ukraine, provides the data for the detailed analysis of the characteristics of these new observations. Within the framework of this master thesis project the possible mechanism of wave generation is discussed and the value of determining local plasma densities in the Jovian magnetosphere by remote sensing is emphasized.

  DAM Spectrum    

Figure 1: Dynamic spectrum of Jovian decametric radio emission observed on Nov 10, 2012 by the URAN-2 radio telescope (Poltava, Ukraine). Zebra stripe-like patterns occur in the frequency range between 20 and 27 MHz.

 

References

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