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M. Lyutikov (UBC)
AGN jets are launched and collimated by magnetic fields originating in accretion disk around central black hole. The fate of these magnetic fields in (kilo)-parsec scale jets remains unclear: they may either transfer their energy to matter or may remain dominant until very large distances. These two possibilities lead to different paradigms for particle acceleration: shocks in matter-dominated jets and magnetic dissipation in Poynting flux-dominated jets.
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Bulletin of the American Astronomical Society, 37 #2
© 2005. The American Astronomical Soceity.