Extragalactic jets as current carrying systems. II - Magnetohydrodynamic turbulence, relativistic electron distribution, and observable quantities

Details Extragalactic jets as current carrying systems. II - Magnetohydrodynamic turbulence, relativistic electron distribution, and observable quantities Extragalactic jets as current carrying systems. II - Magnetohydrodynamic turbulence, relativistic electron distribution, and observable quantities

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340..679c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 340, May 15, 1989, p. 679-697.

Astronomy and Astrophysics

Astronomy

17

Electron Distribution, Extragalactic Radio Sources, Magnetohydrodynamic Turbulence, Radio Jets (Astronomy), Relativistic Electron Beams, Brightness Distribution, Electron Acceleration, Magnetic Field Configurations, Polarized Radiation, Radio Emission

Scientific paper

Relativistic electrons in extragalactic radio jets could act as tracers of only a restricted area of a magnetic field generated by the current structure. A model for a conical distribution of relativistic electrons inside a cylindrical thermal jet which obeys the MHD model of Chiuderi et al.(1989) is presented. Two different geometries are explained on the basis of stochastic diffusion of the relativistic particles on the field lines. This diffusion is shown to be a consequence of the properties of the MHD turbulence which develops in the jet. Model predictions for intensity profiles, degree of polarization, and apparent magnetic field configurations are shown, many of them are in good agreement with observed radio jet structures.

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