Journal Article

Magnetic field structure of relativistic jets without current sheets

K. N. Gourgouliatos, Ch. Fendt, E. Clausen-Brown and M. Lyutikov

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 419, issue 4, pages 3048-3059
Published in print February 2012 | ISSN: 0035-8711
Published online January 2012 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19946.x
Magnetic field structure of relativistic jets without current sheets

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We present an analytical class of equilibrium solutions for the structure of relativistic sheared and rotating magnetized jets that contain no boundary current sheets. We demonstrate the overall dynamical stability of these solutions and, most importantly, a better numerical resistive stability than the commonly employed force-free structures which inevitably require the presence of dissipative surface currents. The jet is volumetrically confined by the external pressure, with no pressure gradient on the surface. We calculate the expected observed properties of such jets. Given the simplicity of these solutions, we suggest them as useful initial conditions for relativistic jet simulations.

Keywords: MHD; methods: analytical; stars: mass-loss; stars: pre-main sequence; ISM: jets and outflows; galaxies: jets

Journal Article.  7680 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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