Initiation of CME event observed on November 3, 2010: Multi-wavelength Perspective

TL;DR

This study investigates the initiation of a 2010 solar CME using multi-wavelength observations, revealing magnetic reconnection as the trigger through detailed imaging of inflow structures and non-thermal sources.

Contribution

It provides multi-wavelength observational evidence linking inflow structures and non-thermal sources to CME initiation by magnetic reconnection.

Findings

Inflow structure observed in 304 Å and 1600 Å images.

Detection of a non-thermal compact source near the inflow.

CME initiation attributed to magnetic reconnection.

Abstract

One of the major unsolved problems in Solar Physics is that of CME initiation. In this paper, we have studied the initiation of a flare associated CME which occurred on 2010 November 03 using multi-wavelength observations recorded by Atmospheric Imaging Assembly (AIA) on board Solar Dynamics Observatory (SDO) and Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI). We report an observation of an inflow structure initially in 304~{\AA} and in 1600~{\AA} images, a few seconds later. This inflow strucure was detected as one of the legs of the CME. We also observed a non-thermal compact source concurrent and near co-spatial with the brightening and movement of the inflow structure. The appearance of this compact non-thermal source, brightening and movement of the inflow structure and the subsequent outward movement of the CME structure in the corona led us to conclude that the CME initiation was caused by magnetic reconnection.