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.
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.
- Chen, B., Bastian, T.S., Gary, D.E., Jing, J., Spatially and spectrally resolved observations of a zebra pattern
in a solar decametric radio burst, Astrophys. J. 736, 64, 1105.0715, 2011.
- Chernov, G.P., Solar radio bursts with drifting stripes in emission and absorption, Space Sci. Rev. 127, 195-326, 2006.
- Chernov, G.P., Recent results of zebra patterns in solar radio bursts. Research in Astronomy and Astrophysics 10, 821-866, 2010.
- Kurth, W.S., G.B. Hospodarsky, D.A. Gurnett, A. Lecacheux, P. Zarka, M.D. Desch, M.L. Kaiser, W.M. Farrell,
High-resolution observations of low-frequency Jovian radio emissions by Cassini, in: Planetary Radio Emissions V,
H.O. Rucker, M.L. Kaiser, Y. Leblanc (eds.), Austrian Academy of Sciences Press, Vienna, p.15, 2001.
- Kuznetsov, A.A., V.G. Vlasov, Formation of zebra pattern in low-frequency Jovian radio emission, Planet.
Space Sci., arXiv: 1209.2923v1 [astro-ph.EP], 2013.