Energy distribution of solar flare events

TL;DR

This paper investigates the energy distribution of solar flare events by modeling magnetic braiding and analyzing radio observations, finding a good agreement in the power law index between the model and data.

Contribution

It introduces a model of magnetic braiding with different winding number profiles and compares its energy distribution with actual radio data from the solar corona.

Findings

Model's power law index matches radio observation results

Radio data analysis supports the braided magnetic topology hypothesis

Energy distribution follows a power law with a consistent index

Abstract

Observational evidence of the braiding of magnetic field lines has been reported. The magnetic reconnection within the loop (nanoflares) and with other loops (microflares) disentangle the field. The coronal field then reorganizes itself to attain a force-free field configuration. We have evaluated the power law index of the energy distribution $f(E)=f_0 E^{-\alpha}$ by using a model of relaxation incorporating different profile functions of winding number distribution $f(w)$ based on braided topologies. We study the radio signatures that occur in the solar corona using the radio data obtained from the Gauribidanur Radio Observatory (IIA) and extract the power law index by using the Statistic-sensitive nonlinear iterative peak clipping (SNIP) algorithm. We see that the power law index obtained from the model is in good agreement with the calculated value from the radio data observation.