A&A 493, 651-660 (2009)
DOI: 10.1051/0004-6361:200809676

Modulation structures in the dynamic spectra of Jovian radio emission obtained with high time-frequency resolution

G. V. Litvinenko¹, A. Lecacheux², H. O. Rucker³, A. A. Konovalenko¹, B. P. Ryabov¹, U. Taubenschuss³, V. V. Vinogradov¹, and V. E. Shaposhnikov<sup>4

1</sup>  Institute of Radio Astronomy, Kharkov, Ukraine
    e-mail: gallitv@rian.kharkov.ua
²  CNRS & Observatoire de Paris, France
³  Space Research Institute, Graz, Austria
⁴  Institute of Applied Physics, Nizhny Novgorod, Russia

Received 28 February 2008 / Accepted 16 September 2008

Abstract
Aims. The wide-band dynamic spectra of Jovian decameter emission obtained over the last decade with high-frequency and high time resolution equipment on the largest decameter band antenna array, the Ukrainian T-shape Radio telescope (UTR-2), are presented.
Methods. We analyzed the data obtained with the Digital SpectroPolarimiter (DSP) and WaveForm Reciever (WFR) installed at UTR-2. The combination of the large antenna and high performance equipment gives the best sensitivity and widest band of analysis, dynamic range, time and frequency resolutions. The wavelet transform method and the Fourier technique was used for further data processing.
Results. The main characteristics of already known and newly detected modulation events were investigated and specified. The new receiving-recording facilities, methodology and program of observations are described in detail.

Key words: planets and satellites: individual: Jupiter

© ESO 2009

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