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Paper: Further Evidence of Helical Magnetic Field
Volume: 373, The Central Engine of Active Galactic Nuclei
Page: 211
Authors: Asada, K.; Inoue, M.; Nagai, H.; Kameno, S.
Abstract: Based on multi-frequency polarimetry towards 0333+321 using VLBA, we reveal both the distributions of the projected magnetic field and Faraday rotation measure in order to discuss the 3D configuration of the magnetic field. There is a systematic gradient in the distribution of rotation measure, and the sign of its rotation measure is different at both sides of jet respect to the jet axis. It strongly supports that the helical magnetic field in the jet is responsible to the RM gradient, since the sign of the rotation measure can be changed only by changing the direction of the magnetic field.
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