Please use this identifier to cite or link to this item:
http://hdl.handle.net/10071/8163
Author(s): | Stockem, A. Grismayer, T. Fonseca, R. A. Silva, L. O. |
Date: | 2014 |
Title: | Electromagnetic field generation in the downstream of electrostatic shocks due to electron trapping |
Volume: | 113 |
Number: | 10 |
Pages: | 105002 |
ISSN: | 0031-9007 |
DOI (Digital Object Identifier): | 10.1103/PhysRevLett.113.105002 |
Abstract: | A new magnetic field generation mechanism in electrostatic shocks is found, which can produce fields with magnetic energy density as high as 0.01 of the kinetic energy density of the flows on time scales ∼104ω−1pe. Electron trapping during the shock formation process creates a strong temperature anisotropy in the distribution function, giving rise to the pure Weibel instability. The generated magnetic field is well confined to the downstream region of the electrostatic shock. The shock formation process is not modified, and the features of the shock front responsible for ion acceleration, which are currently probed in laser-plasma laboratory experiments, are maintained. However, such a strong magnetic field determines the particle trajectories downstream and has the potential to modify the signatures of the collisionless shock. |
Peerreviewed: | Sim |
Access type: | Open Access |
Appears in Collections: | CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Files in This Item:
File | Description | Size | Format | |
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publisher_version_Phys Rev Lett 2014 Stockem.pdf | 1,07 MB | Adobe PDF | View/Open |
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