Abstract
Fine structure of type IV radio solar bursts with a great variety and complexity often give much information in different ways and enable estimation of various coronal characteristics. In this work, we expose our new method for fine structure revealing and separation of two basic kinds of type IV fine structure, as fibers and pulsations. We also estimate frequency drift of fibers from dynamic spectra, clean from continuous background, with a prototype method using 2-D Fourier transform and we estimate periodicities of fibers as well as pulsations with continuous wavelet transform. Working with the last method we found periodicities close to 3 min umbral oscillations and 5 min global solar oscillations.
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Kontogeorgos, A., Tsitsipis, P., Moussas, X. et al. Observing the Sun at 20–650 MHz at Thermopylae with Artemis. Space Sci Rev 122, 169–179 (2006). https://doi.org/10.1007/s11214-006-7492-8
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DOI: https://doi.org/10.1007/s11214-006-7492-8