Measuring the Evolution of Magnetic Fields in Galaxies from 0.3 < z < 2

Details Measuring the Evolution of Magnetic Fields in Galaxies from 0.3 < z < 2 Measuring the Evolution of Magnetic Fields in Galaxies from 0.3 < z < 2

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010atnf.prop.3082h&link_type=abstract

ATNF proposal C1853, Semester: April, 2010

Physics

Magnetic Fields, Surveys And Studies Of Distant Galaxies, Cosmology, Atca

Scientific paper

We propose to measure the evolution of magnetic fields in galaxies over the past several billions of years. We will achieve this by mapping out the Faraday rotation of polarized radio emission from distant galaxies as it passes through the magnetised plasma in foreground galaxies at a range of redshifts between 0.3 < z < 2, where the two galaxies are fortuitously aligned. Our sample was chosen from our 2008 pilot survey conducted with the ATCA. The new broadband back-end will provide the boost in sensitivity that is crucial for measuring Faraday rotation in weak, diffuse synchrotron emission from these distant radio galaxies.

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