Solar energetic particles and radio burst emission

TL;DR

This study analyzes the correlation between solar radio burst emissions and solar energetic particle events over two solar cycles, identifying patterns and trends in radio signatures related to particle origins.

Contribution

It provides a comprehensive statistical analysis of radio burst signatures associated with solar energetic particles during solar cycles 23 and 24, using multiple proton event catalogs.

Findings

Radio burst signatures vary with proton event intensity.

Certain radio burst types are more prevalent during specific solar cycle phases.

Radio emission patterns correlate with the solar origin location.

Abstract

We present a statistical study on the observed solar radio burst emission associated with the origin of in situ detected solar energetic particles. Several proton event catalogs in the period 1996$-$2016 are used. At the time of appearance of the particle origin (flare and coronal mass ejection) we identified radio burst signatures of types II, III and IV by inspecting dynamic radio spectral plots. The information from observatory reports is also accounted for during the analysis. The occurrence of solar radio burst signatures is evaluated within selected wavelength ranges during the solar cycle 23 and the ongoing 24. Finally, we present the burst occurrence trends with respect to the intensity of the proton events and the location of their solar origin.