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Ryu, Dongsu
Astrophysics Lab
Research Interests
  • Shock waves and turbulence in clusters of galaxies

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Magnetic Fields in the Large-Scale Structure of the Universe

Cited 31 times inthomson ciCited 25 times inthomson ci
Title
Magnetic Fields in the Large-Scale Structure of the Universe
Author
Ryu, DongsuSchleicher, D. R. G.Treumann, R. A.Tsagas, C. G.Widrow, L. M.
Keywords
Large-scale structure of the universe; Magnetic field; Turbulence
Issue Date
201205
Publisher
SPRINGER
Citation
SPACE SCIENCE REVIEWS, v.166, no.1-4, pp.1 - 35
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. ⓒ 2011 Springer Science+Business Media B.V.
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DOI
http://dx.doi.org/10.1007/s11214-011-9839-z
ISSN
0038-6308
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