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Viscous Dissipation in Jets

Published online by Cambridge University Press:  14 August 2015

Mitchell C. Begelman
Mitchell C. Begelman*
Affiliation:
Astronomy Department, University of California, Berkeley and Institute of Astronomy, Cambridge

Abstract

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The slow decline of surface brightness along many large-scale jets indicates that their internal pressures are determined largely by dissipation. If dissipation arises from a viscous interaction between a jet and its environment, then the observed degree of collimation enables one to constrain the nature of the viscous stress. Simple phenomenological models of the stress account for the frequently observed “gaps” and provide a means of slowing down jets without their becoming decollimated.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 97: Extragalactic Radio Sources , 1982 , pp. 223 - 225
Copyright
Copyright © Reidel 1982 

References

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