Self-Collimation and Magnetic Field Generation of Astrophysical Jets

Abstract

A novel model for collimation and transport of electron-positron-ion jets is presented. Analytical results show that the filamentary structures can be sustained by self-induced toroidal magnetic fields permeating through the filaments, whose widths significantly expand in the pair-dominant regimes. The magnetic field strength reflects a characteristic of equipartition of excess kinetic energy of the jets. It is also shown that growth of the hoselike instability is strongly suppressed. Essential features derived from this model are consistent with recent results observed by using very long baseline telescopes.

10 pages including 2 eps figures, to be published in 10 April 2002, ApJL

References in corpus (2)

• Faraday Rotation Measures in the Parsec-Scale Jets of the Radio Galaxies M87, 3C 111, and 3C 120
• Relativistic Outflow of Electron-Positron Pair Plasma from a Wien Equilibrium State

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