Phys. Rev. Lett. 99, 265005 (2007) [4 pages]Whistler Instability in an Electron-Magnetohydrodynamic SpheromakReceived 14 June 2007; published 28 December 2007 A three-dimensional magnetic vortex, propagating in the whistler mode, has been produced in a laboratory plasma. Its magnetic energy is converted into electron kinetic energy. Non-Maxwellian electron distributions are formed which give rise to kinetic whistler instabilities. The propagating vortex radiates whistler modes along the ambient magnetic field. A new instability mechanism is proposed. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.99.265005
DOI:
10.1103/PhysRevLett.99.265005
PACS:
52.35.Hr, 52.35.Mw, 52.55.Ip
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