Collisionless shocks mediated by Weibel instability are attracting attention for their relevance to experimental demonstrations of astrophysical shocks in high-intensity laser facilities. The three dimensional structure of Weibel-mediated shocks is investigated through a fully kinetic particle-in-cell simulation. The structures obtained are characterized by the following features: (i) helical magnetic field lines elongated in the direction upstream of the shock region, (ii) high and low density filaments inside the helical field lines. These structures originate from the interaction between counter-streaming plasma flow and magnetic vortexes caused by Weibel instability, and potentially affect the shock formation mechanism.
|ジャーナル||Journal of Physics: Conference Series|
|出版ステータス||出版済み - 4 1 2016|
|イベント||8th International Conference on Inertial Fusion Sciences and Applications, IFSA 2013 - Nara, 日本|
継続期間: 9 8 2013 → 9 13 2013
All Science Journal Classification (ASJC) codes