Some remarks on the diffusion regions in magnetic reconnection
Solar and Stellar Astrophysics
2014-03-31 v2 Plasma Physics
Space Physics
Abstract
The structure of the diffusion regions in antiparallel magnetic reconnection is investigated by means of a theory and a Vlasov simulation. The magnetic diffusion is considered as relaxation to the frozen-in state, which depends on a reference velocity field. A field-aligned component of the frozen-in condition is proposed to evaluate a diffusion-like process. Diffusion signatures with respect to ion and electron bulk flows indicate the ion and electron diffusion regions near the reconnection site. The electron diffusion region resembles the energy dissipation region. These results are favorable to a previous expectation that an electron-scale dissipation region is surrounded by an ion-scale Hall-physics region.
Cite
@article{arxiv.1403.3578,
title = {Some remarks on the diffusion regions in magnetic reconnection},
author = {Seiji Zenitani and Takayuki Umeda},
journal= {arXiv preprint arXiv:1403.3578},
year = {2014}
}