Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-06-30
Astronomy and Astrophysics
Astrophysics
10 pages, 3 figures, uses texas.sty file, to appear in the Proceedings of the 19th Texas Symposium on Relativistic Astrophysic
Scientific paper
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-Alfv\'enic speeds is explored and a relativistic stabilization mechanism for trans-Alfv\'enic 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.
Duncan Comer G.
Hardee Philip E.
Hughes Philip A.
Rosen Alexander
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