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Galactic Dynamos and Dynamics

Published online by Cambridge University Press:  19 July 2016

Karl Johan Donner ,
Axel Brandenburg  and
Magnus Thomasson
Karl Johan Donner
Affiliation:
Observatoire de Marseille, 2 Place Le Verrier, F-13248 Marseille Cedex 4, France∗
Axel Brandenburg
Affiliation:
Isaac Newton Institute, 20 Clarkson Road, Cambridge CB3 0EH, UK
Magnus Thomasson
Affiliation:
NORDITA, Blegdamsvej 17, DK-2100 Copenhagen ⊘, Denmark

Abstract

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We discuss some aspects of the interrelationship between the dynamo problem for galaxies and their dynamics. First, we consider the generation of magnetic fields in the presence of fountain flows and galactic winds. Next, we discuss the distortion of a steady magnetic field by tidal effects and other transient spiral features. Finally, we give an expression for the amplitude of density waves generated by large-scale non-axisymmetric fields.

Keywords

Interstellar gas dynamicsInteractions of galaxiesDensity waves
Type
8. Magnetic Fields in Galaxies: Dynamo Theory
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 333 - 337
Copyright
Copyright © Kluwer 1993 

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