AUTHOR=Shevchuk Mykola , Melnik Valentin , Brazhenko Anatolii , Dorovskyy Vladimir , Frantsuzenko Anatolii , Poedts Stefaan , Magdalenic Jasmina TITLE=Polarization properties of the decameter spikes JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2024.1396326 DOI=10.3389/fspas.2024.1396326 ISSN=2296-987X ABSTRACT=

An analysis of the observational polarization properties of the decameter spikes is presented in the paper. It is shown that decameter spikes possess high degree of circular polarization with average value of about 60%. In the frames of “leading spot” theory we associated the spikes activity with a certain active region on the solar disk and determined the mode of the emission. Supposing plasma emission mechanism we link and determine coronal plasma and fast electron beam parameters.