Simulation of descending multiple supra--arcade reconnection outflows in solar flares

TL;DR

This paper uses simulations to analyze the behavior and interactions of supra-arcade reconnection outflows in solar flares, providing insights into their stability, structure, and consistency with recent observations.

Contribution

It presents a simulation-based analysis of multiple SAROs, demonstrating their stability and interactions, and compares results with recent observations and existing theories.

Findings

SAROs are stable features during their movement.

Interactions of SAROs involve bouncing and interference of shocks.

Simulation results align with recent AIA observations.

Abstract

After recent AIA observations by Savage, McKenzie and Reeves we revisit the scenario proposed by us in previous papers. We have shown that sunward, generally dark plasma features originated above posteruption flare arcades are consistent with a scenario where plasma voids (which we identify as supra--arcade reconnection outflows, SAROs) generate the bouncing and interfering of shocks and expansion waves upstream of an initial localized deposition of energy which is collimated in the magnetic field direction. In this paper we analyze the multiple production and interaction of SAROs and their individual structure that make them relatively stable features while moving. We compare our results with observations and with the scenarios proposed by other authors.