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On the Predictive Power of the Minimum Energy Condition

Published online by Cambridge University Press:  19 July 2016

Martin Pohl
Martin Pohl*
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, W-5300 Bonn 1, FRG

Abstract

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We reexamine the minimum energy method to determine the magnetic field strength in spiral galaxies from the cosmic ray standpoint of view. It is shown that for example in M51 the estimated field strength is about a factor of 2 lower than obtained with the standard method. As a by-product the corresponding γ-ray flux from the galaxies can be calculated, which will allow further improvement of the method provided reliable γ-ray spectra are at hand.

Type
9. Magnetohydrodynamic Phenomena in the Interstellar Medium Related to Dynamo Processes
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 413 - 414
Copyright
Copyright © Kluwer 1993 

References

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Pohl, M.: 1992, AA , submitted Google Scholar