Intergalactic Magnetic Fields, and Some Connections with Cosmic Rays

Details Intergalactic Magnetic Fields, and Some Connections with Cosmic Rays Intergalactic Magnetic Fields, and Some Connections with Cosmic Rays

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ssrv...75..387k&link_type=abstract

Space Science Reviews, Volume 75, Issue 1-2, pp. 387-399

Physics

8

Scientific paper

An overview is presented of the methods of probing for the geometry, and strength of intergalactic magnetic fields. Recent results are briefly surveyed for galaxy halos, galaxy clusters, and the intergalactic medium on various scales, and some rele vant physical processes and radiation processes are mentioned, as well as the “coupling” between intergalactic magnetic fields and cosmic rays. The general trend of recent results indicates that, wherever we detect intergalactic hot gas and galaxies, we also find magnetic fields at levels of ˜ 10-7 G, or higher. The hitherto undetected, weaker fields in the ratified i.g.m. and in large intergalactic voids could be probed by both Faraday rotation, and possibly using very energetic CR nuclei (> 1020eV), and/or transient extragalactic γ ray bursts.

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