Mathematics – Logic
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006an....327..517k&link_type=abstract
Astronomische Nachrichten, Vol.327, Issue 5/6, p.517
Mathematics
Logic
8
Galaxies: Clusters: General, Galaxies: Active, Galaxies: Magnetic Fields, Quasars: Individual (3C191), Radio Continuum: General, Polarization
Scientific paper
I review the interconnections between extragalactic radio sources and extragalactic magnetic fields in large-scale structure. I focus on energy flows and magnetic fields arising from AGN-powered radio sources. A new combined Faraday rotation (RM) and galaxy count analysis is described which provides the first Faraday RM test for magnetic field strengths in regions of local cosmological large-scale structure. I also describe both recent and new results that probe intergalactic magnetic fields via faint synchrotron radiation at the lowest detectable levels. Evidence for the cosmologically early generation of significant magnetic fields in galaxy systems is briefly reviewed, including initial results of a new global RM probe out to redshifts greater than 3. In the course of reviewing these new results, I comment on some desirable specifications of next-generation instruments.
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