Interaction between electrostatic collisionless shocks generates strong magnetic fields

Boella, Elisabetta and Schoeffler, Kevin Michael and Shukla, Nitin and Innocenti, Maria Elena and Lapenta, Giovanni and Fonseca, Ricardo A and Silva, Luis O (2022) Interaction between electrostatic collisionless shocks generates strong magnetic fields. New Journal of Physics, 24 (6). ISSN 1367-2630

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Abstract

The head-on collision between electrostatic shocks is studied via multi-dimensional Particle-In-Cell simulations. A strong magnetic field develops after the interaction, which causes the shock velocities to drop significantly. This transverse magnetic field is generated by the Weibel instability, which is driven by pressure anisotropies due to longitudinal electron heating while the shocks approach each other. The possibility to explore the physics underpinning the shock collision in the laboratory with current laser facilities is discussed.

Item Type:
Journal Article
Journal or Publication Title:
New Journal of Physics
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
170710
Deposited By:
Deposited On:
23 May 2022 14:25
Refereed?:
Yes
Published?:
Published
Last Modified:
22 Nov 2022 11:28