Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21720305g&link_type=abstract
American Astronomical Society, AAS Meeting #217, #203.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astrophysics
Scientific paper
Astrophysical magnetic fields are not directly observable, but we can infer their strength, orientation and structure through observations of radio synchrotron emission and its polarization. The new generation of radio interferometers have two capabilities that make them powerful probes of magnetic fields: wide fields of view with which we can image thousands of discrete radio sources in a single pointing, and broadband spectropolarimetric capabilities with which we can simultaneously measure Faraday rotation towards all of these targets. I will briefly review the polarimetric techniques needed to study magnetic fields both in diffuse gas and in discrete objects such as galaxies and AGN. I will then highlight the innovative new experiments on magnetic fields that the Radio Sky Surveys Project will be able to perform.
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