English

Magnetic Reconnection in Non-Equilibrium Ionization Plasma

Solar and Stellar Astrophysics 2015-05-30 v1

Abstract

We have studied the effect of time-dependent ionization and recombination processes on magnetic reconnection in the solar corona. Petschek-type steady reconnection, in which model the magnetic energy is mainly converted at the slow-mode shocks, was assumed. We carried out the time-dependent ionization calculation in the magnetic reconnection structure. We only calculated the transient ionization of iron; the other species were assumed to be in ionization equilibrium. The intensity of line emissions at specific wavelengths were also calculated for comparison with {\it Hinode} or other observations in future. What we found is as follows: (1) iron is mostly in non-equilibrium ionization in the reconnection region, (2) the intensity of line emission estimated by the time-dependent ionization calculation is significantly different from that with the ionization equilibrium assumption, (3) the effect of time-dependent ionization is sensitive to the electron density in the case that the electron density is less than 101010^{10} cm3^{-3}, (4) the effect of thermal conduction lessens the time-dependent ionization effect, (5) the effect of radiative cooling is negligibly small even if we take into account time-dependent ionization.

Keywords

Cite

@article{arxiv.1108.5026,
  title  = {Magnetic Reconnection in Non-Equilibrium Ionization Plasma},
  author = {S. Imada and I. Murakami and T. Watanabe and H. Hara and T. Shimizu},
  journal= {arXiv preprint arXiv:1108.5026},
  year   = {2015}
}

Comments

accepted for publication in The Astrophysical Journal

R2 v1 2026-06-21T18:55:01.397Z