Abstract
Radio pulsations observed during the 11 April 2001 event at six single frequencies (237, 327, 408, 610, 1420, and 2695 MHz) by the Trieste radio-polarimeter with a time resolution 10 ms are analyzed. A wavelet analysis method as well as time delay and polarization measurements are used. Both methods reveal pulsations with a period of about 0.1 s at all observed frequencies. Furthermore, the 0.1 s pulsations drift toward higher and lower frequencies, starting at about 1420 MHz. The polarization of pulsations increases with frequency and time. The remarkable fact that the detected 0.1 s period of pulsations does not depend on frequency in a very broad frequency range is discussed in terms of existing models of pulsations.
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Karlický, M., Zlobec, P. & Mészárosová, H. Subsecond (0.1 s) Pulsations in the 11 April 2001 Radio Event. Sol Phys 261, 281–294 (2010). https://doi.org/10.1007/s11207-009-9496-5
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DOI: https://doi.org/10.1007/s11207-009-9496-5