On the internal structure of relativistic jets
- 1 April 2000
- journal article
- research article
- Published by Pleiades Publishing Ltd in Astronomy Letters
- Vol. 26 (4), 208-218
- https://doi.org/10.1134/1.20384
Abstract
A magnetohydrodynamic model is constructed for a cylindrical jet embedded in an external uniform magnetic field. It is shown that, as in the force-free case, the total electric current within the jet can be zero. The particle energetics and the magnetic-field structure are determined in a self-consistent way; all jet parameters depend markedly on the physical conditions in the external medium. In particular, we show that a region with subsonic flow can exist in the central jet regions. In real relativistic jets, most of the energy is transferred by the electromagnetic field only at a sufficiently large magnetization parameter σ>106. We also show that, in general, the well-known solution with a central core BZ=B0/(1+ϖ2/ϖc2) cannot be realized in the presence of an external medium.Keywords
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