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Space Science Reviews

, Volume 166, Issue 1–4, pp 1–35 | Cite as

Magnetic Fields in the Large-Scale Structure of the Universe

  • D. RyuEmail author
  • D. R. G. Schleicher
  • R. A. Treumann
  • C. G. Tsagas
  • L. M. Widrow
Article

Abstract

Magnetic fields appear to be ubiquitous in astrophysical environments. Their existence in the intracluster medium is established through observations of synchrotron emission and Faraday rotation. On the other hand, the nature of magnetic fields outside of clusters, where observations are scarce and controversial, remains largely unknown. In this chapter, we review recent developments in our understanding of the nature and origin of intergalactic magnetic fields, and in particular, intercluster fields. A plausible scenario for the origin of galactic and intergalactic magnetic fields is for seed fields, created in the early universe, to be amplified by turbulent flows induced during the formation of the large scale structure. We present several mechanisms for the generation of seed fields both before and after recombination. We then discuss the evolution and role of magnetic fields during the formation of the first starts. We describe the turbulent amplification of seed fields during the formation of large scale structure and the nature of the magnetic fields that arise. Finally, we discuss implications of intergalactic magnetic fields.

Keywords

Large-scale structure of the universe Magnetic field Turbulence 

Notes

Acknowledgements

The work of DR was supported by the National Research Foundation of Korea through grant 2007-0093860. The work of DS was supported by a funding from the European Community’s Seventh Framework Programme (/FP7/2007-2013/) under grant agreement No 229517. The work of LMW was supported by a Discovery Grant from the Natural Sciences and Engineering Research Council of Canada.

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • D. Ryu
    • 1
    Email author
  • D. R. G. Schleicher
    • 2
  • R. A. Treumann
    • 3
  • C. G. Tsagas
    • 4
  • L. M. Widrow
    • 5
  1. 1.Department of Astronomy and Space ScienceChungnam National UniversityDaejeonKorea
  2. 2.Institut für AstrophysikGeorg-August-UniversitätGöttingenGermany
  3. 3.ISSIBernSwitzerland
  4. 4.Department of PhysicsAristotle University of ThessalonikiThessalonikiGreece
  5. 5.Department of PhysicsQueen’s UniversityKingstonCanada

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