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The origin and evolution of cluster magnetism

Lookup NU author(s): Professor Anvar ShukurovORCiD

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Abstract

Random motions can occur in the intergalactic gas of galaxy clusters at all stages of their evolution. Depending on the poorly known value of the Reynolds number, these motions can or cannot become turbulent, but in any case they can generate random magnetic fields via dynamo action. We argue that magnetic fields inferred observationally for the intracluster medium require dynamo action, and then estimate parameters of random flows and magnetic fields at various stages of the cluster evolution. Polarization in cluster radio halos predicted by the model would be detectable with the SKA. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.

Publication metadata

Author(s): Shukurov A, Subramanian K, Haugen NEL

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: International Conference on Origin and Evolution of Cosmic Magnetism

Year of Conference: 2006

Pages: 583-586

ISSN: 0004-6337

Publisher: Astronomische Nachrichten, Wiley-Blackwell

URL: http://dx.doi.org/10.1002/asna.200610596

DOI: 10.1002/asna.200610596

Library holdings: Search Newcastle University Library for this item

ISBN: 15213994

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