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Relativistic Jet Stability and Structure from the Alfven Point Outwards

P. E. Hardee·A. Rosen·P. A. Hughes·G. C. Duncan
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Abstract

The amplitude of jet distortions and accompanying pressure and velocity fluctuations resulting from Kelvin-Helmholtz instability of three dimensional relativistic jets are explored. The effect of instability on jets as they accelerate from sub- to super-Alfvénic speeds is explored and a relativistic stabilization mechanism for trans-Alfvénic jets is proposed. The level to which asymmetric instabilities on supermagnetosonic relativistic jets will grow is predicted theoretically and a Doppler boosted ``apparent'' emissivity is computed. Effects due to helically twisted filamentary structure produced by asymmetric modes of instability should be readily observable on relativistic jets.

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P. E. Hardee, A. Rosen, P. A. Hughes, G. C. Duncan. 1999-06-30. Relativistic Jet Stability and Structure from the Alfven Point Outwards. https://arxiv.org/abs/astro-ph/9906491

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