English

Particle-in-cell simulations of fast collisionless reconnection in gamma-ray burst outflows

Astrophysics 2007-06-04 v1

Abstract

We present preliminary results of particle-in-cell simulations of collisionless magnetic reconnection for conditions that apply to magnetically dominated pair plasma jets such as those in gamma-ray bursts. We find similar behaviour to previous authors but with reduced reconnection efficiency. This results because we include the full electromagnetic field dynamically and allow electric field fluctuations to grow. Although weak, these fluctuations impede early x-point formation by periodically decelerating and even reversing the inflow.

Keywords

Cite

@article{arxiv.0706.0193,
  title  = {Particle-in-cell simulations of fast collisionless reconnection in gamma-ray burst outflows},
  author = {Joachim Moortgat and Eric G. Blackman and Chuang Ren and Xianglong Kong and Rui Yan},
  journal= {arXiv preprint arXiv:0706.0193},
  year   = {2007}
}

Comments

4 pages 2 figures. Proceedings of the final open meeting of the RTN `GRBs, and enigma and tool': "070228 - The Next Decade of GRB afterglows"