H. Meszarosova1,
H.S. Sawant2,
J.R. Cecatto2,
J. Rybák3,
M. Karlicky1,
F.C.R. Fernandes4,
M.C. de Andrade2,
K. Juricka1
1Astronomical Institute of the Academy of Sciences of the Czech Republic, 25165 Ondøejov, Czech Republic
2National Space Research Institute (INPE), Ave. dos Astronautas 1758, 1221-0000 Sao Jose dos Campos, SP, Brazil
3Astronomical Institute of the Slovak Academy of Sciences,
SK-05960 Tatranská Lomnica, Slovakia
4Institute of Research and Development (IPD â UNIVAP), Ave. Shishima Hifum 2911, Urbanova, 12244-000 Sao Jose dos Campos, SP, Brazil
The 22 min long decimetric type IV radio event observed during the decay phase of the June 6, 2000 flare simultaneously by the Brazilian Solar Spectroscope (BSS) and the OndrËejov radiospectrograph in frequency range 1200â4500 MHz has been analyzed. We have found that the characteristic periods of about 60 s belong to the long-period spectral component of the fast wave trains with a tadpole pattern in their wavelet power spectra. We have detected these trains in the whole frequency range 1200â4500 MHz. The behavior of individual wave trains at lower frequencies is different from that at higher frequencies. These individual wave trains have some common as well as different properties. In this paper, we focus on two examples of wave trains in a loop segment and the main statistical parameters in their wavelet power and global spectra are studied and discussed.
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