Planetary Radio Emissions VII Proceedings of the 7th International Workshop on
Planetary, Solar and Heliospheric Radio Emissions held at Graz, Austria, September 15–17, 2010
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Verlag der Österreichischen Akademie der Wissenschaften Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3420, Fax +43-1-515 81/DW 3400 https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at |
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DATUM, UNTERSCHRIFT / DATE, SIGNATURE
BANK AUSTRIA CREDITANSTALT, WIEN (IBAN AT04 1100 0006 2280 0100, BIC BKAUATWW), DEUTSCHE BANK MÜNCHEN (IBAN DE16 7007 0024 0238 8270 00, BIC DEUTDEDBMUC)
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Planetary Radio Emissions VII Proceedings of the 7th International Workshop on
Planetary, Solar and Heliospheric Radio Emissions held at Graz, Austria, September 15–17, 2010
ISBN 978-3-7001-7125-6 Print Edition ISBN 978-3-7001-7246-8 Online Edition
Helmut Rucker
Space Research Institute, Austrian Academy of Sciences, Graz, Austria William Kurth Department of Physics and Astronomy, University of Iowa, Iowa City, USA Philippe Louarn Centre d'Etude Spatiale de Rayonnements, CNRS/Universitè Paul-Sabatier Toulouse III, Toulouse, France Georg Fischer Space Research Institute, Austrian Academy of Sciences, Graz, Austria
V. E. Shaposhnikov,
A. V. Kostrov,
H. O. Rucker,
S. V. Korobkov,
M. E. Gushchin,
G. V. Litvinenko
S. 209 - 218 doi:10.1553/PRE7s209 Verlag der Österreichischen Akademie der Wissenschaften
Abstract: The new mechanism for the formation of a fine structure in the dynamic spectra of the Jovian decametric radio emission is proposed. The main attention is paid to the formation of narrow-band (NB) emission and quasiperiodic trains of S-bursts. Our model is based on the effects of occurrence of the amplitude-frequency modulation and extension of the frequency spectrum of a signal during propagation of the radiation in a medium with time-varied parameters. It is shown that non-stationary disturbances of the planetary magnetic field and strong frequency dispersion of the plasma at frequencies close to the cutoff frequency of the extraordinary wave in the Jovian ionosphere can play a crucial role in the formation of NB emission and quasiperiodic trains of S-bursts. As a result of the numerical experiments, it was concluded that the amplitude-frequency characteristics of an initially continuous signal can drastically vary as functions of the form of the magnetic-field disturbance in the Jovian ionosphere. Structures similar to those observed in the real experiments, ranging from NB emission and quasiperiodic trains of S-bursts to more complex structures, arise in the dynamic spectrum. Published Online: 2011/12/28 14:28:30 Object Identifier: 0xc1aa5576 0x002a1d0f Rights: .
… The 7th International Workshop on "Planetary, Solar and Heliospheric Radio Emissions" is the continuation of an established tradition: This PRE VII conference followed previous successful international workshops held at Graz, Austria, in 1984, 1987, 1991, 1996, 2001, and 2005. This 7th workshop in September 2010 offered again the unique opportunity to discuss the observations from Cassini at Saturn and to investigate the measurements by other spacecraft and from the ground of the Jovian, terrestrial and solar radio emissions, also including studies on radiation from exoplanetary sources.
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Verlag der Österreichischen Akademie der Wissenschaften Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3420, Fax +43-1-515 81/DW 3400 https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at |