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Investigating Turbulence Effects on Magnetic Reconnection Rates Through High-Resolution Three-Dimensional Resistive Magnetohydrodynamical Simulations by Vicentin, Giovani H.; Kowal, Grzegorz; Pino, Elisabete M. de Gouveia Dal; Lazarian, Alex is a scholarly article available to read on EtoBox.

What is Investigating Turbulence Effects on Magnetic Reconnection Rates Through High-Resolution Three-Dimensional Resistive Magnetohydrodynamical Simulations about?

We investigate the impact of turbulence on magnetic reconnection through high-resolution 3D MHD simulations, covering Lundquist numbers from $S=10^3$ to $10^6$. Our simulations introduce small-scale perturbations injected into the system until $t=0.1\, t_A$. Even after the initial perturbation ceases, turbulence grows and persists, leading to sustained high reconnection rates of $V_\text{rec}/V_A \sim 0.03-0.08$, which surpass those generated solely by resistive tearing modes (plasmoids) observed in 2D and 3D PIC/MHD simulations by factors of 5 to 6. Our findings reveal that the achieved reconnection rates align with observations in solar phenomena and those reported in 3D MHD global simulations of accretion flows and relativistic jets. Notably, our simulations exhibit a steady-state reconnection rate coinciding with the full development of turbulence, showcasing the robustness and persistence of the reconnection in a turbulent environment. We establish the independence of the reconnection rate from the Lundquist number, consistent with the theory of turbulent reconnection proposed by Lazarian and Vishniac. Our results demonstrate a mild dependence of $V_\text{rec}$ on the plasma-$

Author

Vicentin, Giovani H.; Kowal, Grzegorz; Pino, Elisabete M. de Gouveia Dal; Lazarian, Alex

Published

2024

Language

EN