The origin of magnetic fields in the universe remains an outstanding problem in cosmology. We propose that these fields are produced by shocks during the large-scale structure formation. We discuss the mechanism of the field generation via the counter-streaming (Weibel) instability. We also show that these Weibel-generated fields are long-lived and weakly coupled to dissipation. Subsequent field amplification by the intra-cluster turbulence may also take place, thus maintaining the magnetic energy density close to equipartition.
CITATION STYLE
MEDVEDEV, M. V., SILVA, L. O., FIORE, M., FONSECA, R. A., & MORI, W. B. (2004). GENERATION OF MAGNETIC FIELDS IN COSMOLOGICAL SHOCKS. Journal of The Korean Astronomical Society, 37(5), 533–541. https://doi.org/10.5303/jkas.2004.37.5.533
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