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Origins of Cosmic magnetism

Published online by Cambridge University Press:  03 March 2020

Kandaswamy Subramanian
Kandaswamy Subramanian*
Affiliation:
IUCAA, Post Bag 4, Ganeshkhind, Pune411007, India email: kandu@iucaa.in
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Abstract

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The standard picture for the origin of magnetic fields in astrophysical systems involves turbulent dynamo amplification of a weak seed field. Dynamos convert kinetic energy of motions to magnetic energy. While it is relatively easy for magnetic energy to grow, explaining the observed degree of coherence of cosmic magnetic fields generated by turbulent dynamos, remains challenging. We outline potential resolution of these challenges. Another intriguing possibility is that magnetic fields originated at some level from the early universe.

Keywords

magnetic fieldsgalaxies: magnetic fieldsgalaxies: clusters: generalearly universe
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 291 - 294
Copyright
© International Astronomical Union 2020

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