|The Australia Telescope National Facility Colloquium|
|15:00-16:00 Wed 24 Jul 2013|
The First Broadband Circular Polarization Spectrum of an AGN Jet -- Shane O'Sullivane Colloquium
Both the three-dimensional magnetic field structure and particle composition of AGN jets are still not well constrained. Detecting continuum circularly-polarized radio emission from AGN jets is potentially a very powerful diagnostic of the jet magnetic field and particles since, unlike linear polarization, it is expected to remain almost completely unmodified by external screens. There are many predictions for the origin of the circular polarization emission in radio-loud AGN and determining the correct model can potentially constrain the polarity of the black hole/accretion disk magnetic field as well as the black hole spin/direction of rotation of the accretion disk.
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