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On the internal structure of relativistic jets

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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 B Z =B 0/(1+ϖ2/ϖ 2 c ) cannot be realized in the presence of an external medium.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 117924, Russia

    V. S. Beskin

  2. Princeton University Observatory, Princeton, USA

    L. M. Malyshkin

Authors
  1. V. S. Beskin
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  2. L. M. Malyshkin
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__________

Translated from Pis'ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 26, No. 4, 2000, pp. 253–265.

Original Russian Text Copyright © 2000 by Beskin, Malyshkin.

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Beskin, V.S., Malyshkin, L.M. On the internal structure of relativistic jets. Astron. Lett. 26, 208–218 (2000). https://doi.org/10.1134/1.20384

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  • DOI: https://doi.org/10.1134/1.20384

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