| Presentation Title: | Energy-Dependent Ejection in an Impulsive Solar Energetic Electron Event associated with an X-class Flare |
| Author(s): | Meiqi Wang, Bin Chen, Sijie Yu, Dale Gary, Jeongwoo Lee, Christina Cohen, Trevor Knuth |
Abstract:
Impulsive solar energetic electron events are commonly associated with the magnetic reconnection processes during the solar flares. However, identifying when they are released during the flare and how they escape from the flare region persist as open questions. In this study, we report an impulsive solar energetic particle event associated with an X-class eruptive flare on July 3, 2021, using a combination of remote sensing and in situ measurements. The in situ energetic electrons over a wide energy range from tens of keV to ~MeV were recorded by multiple spacecraft. Meanwhile, the joint observations in microwaves and hard X-rays provide diagnostics of this broad spectrum of energetic electrons near the source region. The release time of electrons showed that the lower energy electrons were released during the early impulsive phase, while those at higher energies were released during the later stage of the impulsive phase. We suggest that lower energy electrons were initially accelerated and released during the magnetic reconnection that triggered the eruption, while the higher energy electrons were produced during the magnetic reconnection processes in the above-the-looptop region.