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Paper: Studying Circular Polarization with the VLBA
Volume: 300, Radio Astronomy at the Fringe
Page: 49
Authors: Homan, D.C.; Wardle, J.F.C.
Abstract: Very Long Baseline Array (VLBA) studies of circular polarization provide a new probe of the physics of extragalactic radio jets. In addition to a brief review of past results from VLBA circular polarization studies, we present preliminary new results on the famous radio galaxy 3C 84. These images reveal very strong circular polarization in a complex distribution with both positive and negative signs. We interpret a strong spot of positive circular polarization as originating from an unusual region of highly ordered magnetic field in the jet. This region cannot be too much smaller than our beam, ∼ 0.5 light years.
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