Dynamics of Relativistic Flows
Abstract
Dynamics of relativistic outflows along the rotation axis of a Kerr black hole is investigated using a simple model that takes into account the relativistic tidal force of the central source as well as the Lorentz force due to the large-scale electromagnetic field which is assumed to be present in the ambient medium. The evolution of the speed of the flow relative to the ambient medium is studied. In the force-free case, the resulting equation of motion predicts rapid deceleration of the initial flow and an asymptotic relative speed with a Lorentz factor of 2^1/2. In the presence of the Lorentz force, the long-term relative speed of the clump tends to the ambient electrical drift speed.
Cite
@article{arxiv.astro-ph/0308421,
title = {Dynamics of Relativistic Flows},
author = {C. Chicone and B. Mashhoon and B. Punsly},
journal= {arXiv preprint arXiv:astro-ph/0308421},
year = {2009}
}
Comments
17 pages, 5 figures, expanded version to appear in Int. J. Mod. Phys. D