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Hydromagnetic Dynamo in Astrophysical Jets

Published online by Cambridge University Press:  19 July 2016

A. Shukurov  and
D.D. Sokoloff
A. Shukurov
Affiliation:
Computing Center, Moscow University, Moscow 119899, Russia
D.D. Sokoloff
Affiliation:
Physics Department, Moscow University, Moscow 119899, Russia

Abstract

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The origin of a regular magnetic field in astrophysical jets is discussed. It is shown that jet plasma flow can generate a magnetic field provided the streamlines are helical. The dynamo of this type, known as the screw dynamo, generates magnetic fields with the dominant azimuthal wave number m = 1 whose field lines also have a helical shape. The field concentrates into a relatively thin cylindrical shell and its configuration is favorable for the collimation and confinement of the jet plasma.

Keywords

The screw dynamoAstrophysical jets
Type
8. Magnetic Fields in Galaxies: Dynamo Theory
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 367 - 371
Copyright
Copyright © Kluwer 1993 

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