Fully kinetic Biermann battery and associated generation of pressure anisotropy
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PhysRevE.97.033204.pdf
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Author(s)
Schoeffler, K. M.
Silva, L. O.
Gomes Loureiro, Nuno F
Date Issued
March 2018
Journal
Physical Review E
Publisher
American Physical Society
Citation
Schoeffler, K. M. et al. "Fully kinetic Biermann battery and associated generation of pressure anisotropy." Physical Review E 97, 3 (March 2018): 033204 © 2018 American Physical Society
Version
Final published version
Abstract
The dynamical evolution of a fully kinetic, collisionless system with imposed background density and temperature gradients is investigated analytically. The temperature gradient leads to the generation of temperature anisotropy, with the temperature along the gradient becoming larger than that in the direction perpendicular to it. This causes the system to become unstable to pressure anisotropy driven instabilities, dominantly to the electron Weibel instability. When both density and temperature gradients are present and nonparallel to each other, we obtain a Biermann-like linear-in-time magnetic field growth. Accompanying particle-in-cell numerical simulations are shown to confirm our analytical results.
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevE.97.033204
