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

G. V. Litvinenko (1) , Alain Lecacheux (2, 3, 4) , Helmut O. Rucker (5) , Alexander A. Konovalenko (1) , B. P. Ryabov (1) , Ulrich Taubenschuss (5) , V. V. Vinogradov (1) , V. E. Shaposhnikov (6)

1 Institute of Radio Astronomy, National Academy of Sciences of Ukraine
2 Observatoire de Paris
3 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
4 Pôle Astronomie du LESIA
5 IWF - Institut für Weltraumforschung, Österreichische Akademie der Wissenschaften
6 Institute of Applied Physics

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.

Domaines: Astrophysique [astro-ph]

G. V. Litvinenko, Alain Lecacheux, Helmut O. Rucker, Alexander A. Konovalenko, B. P. Ryabov, et al.. Modulation structures in the dynamic spectra of Jovian radio emission obtained with high time-frequency resolution. Astronomy and Astrophysics - A&A, 2009, 493, pp.651-660. ⟨10.1051/0004-6361:200809676⟩. ⟨hal-03786579⟩