@article{Nakamura:2021:10.1029/2021gl093524,
author = {Nakamura, TKM and Hasegawa, H and Genestreti, KJ and Denton, RE and Phan, TD and Stawarz, JE and Nakamura, R and Nystrom, WD},
doi = {10.1029/2021gl093524},
journal = {Geophysical Research Letters},
pages = {1--8},
title = {Fast crossscale energy transfer during turbulent magnetic reconnection},
url = {http://dx.doi.org/10.1029/2021gl093524},
volume = {48},
year = {2021}
}

Download

TY  - JOUR
AB  - Magnetic reconnection is a key fundamental process in collisionless plasmas that explosively converts magnetic energy to plasma kinetic and thermal energies through a change of magnetic field topology in a central electron-scale region called the electron diffusion region (EDR). Past simulations and observations demonstrated that this process causes efficient energy conversion through the formation of multiple macro-scale or micro-scale magnetic islands/flux ropes. However, the coupling of these phenomena on different spatiotemporal scales is still poorly understood. Here, based on a new large-scale fully-kinetic simulation with a realistic, initially-fluctuating magnetic field, we demonstrate that macro-scale evolution of turbulent reconnection involving merging of macro-scale islands induces repeated, quick formation of new electron-scale islands within the EDR which soon grow to larger scales. This process causes an efficient cross-scale energy transfer from electron- to larger-scales, and leads to strong electron energization within the growing islands.
AU  - Nakamura,TKM
AU  - Hasegawa,H
AU  - Genestreti,KJ
AU  - Denton,RE
AU  - Phan,TD
AU  - Stawarz,JE
AU  - Nakamura,R
AU  - Nystrom,WD
DO  - 10.1029/2021gl093524
EP  - 8
PY  - 2021///
SN  - 0094-8276
SP  - 1
TI  - Fast crossscale energy transfer during turbulent magnetic reconnection
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2021gl093524
UR  - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021GL093524
UR  - http://hdl.handle.net/10044/1/90038
VL  - 48
ER  - 

Download