Density filament and helical field line structures in three dimensional Weibel-mediated collisionless shocks

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-ce...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2016-03, Vol.688 (1), p.12072
Main Authors: Moritaka, Toseo, Sakawa, Youichi, Kuramitsu, Yasuhiro, Morita, Taichi, Yamaura, Yuta, Ishikawa, Taishi, Takabe, Hideaki
Format: Article
Language:English
Subjects:
Density
Filaments
Flow stability
High power lasers
Magnetism
Particle in cell technique
Physics
Weibel instability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/688/1/012072