# Electron plasma wake field acceleration in solar coronal and chromospheric plasmas

## TL;DR

This paper demonstrates through simulations that electron plasma wake field acceleration in solar atmospheric plasmas can accelerate electrons to high energies, potentially explaining energetic electrons in solar flares.

## Contribution

It presents the first detailed 3D electromagnetic simulations of plasma wake field acceleration in solar coronal and chromospheric conditions.

## Key findings

- Electric fields of up to 20-50 MV/m were generated.
- Trailing electron bunches were accelerated from 36 MeV to 52 MeV.
- The mechanism could explain energetic electrons in solar flares.

## Abstract

Three dimensional, particle-in-cell, fully electromagnetic simulations of electron plasma wake field acceleration applicable to solar atmosphere are presented. It is established that injecting driving and trailing electron bunches into solar coronal and chromospheric plasmas, results in electric fields ($-(20-5) \times 10^{6}$ V/m), leading to acceleration of the trailing bunch up to 52 MeV, starting from initial 36 MeV. The results provide one of potentially important mechanisms for the extreme energetic solar flare electrons, invoking plasma wake field acceleration.