Abstract
High resolution observations, at a wavelength of 6 cm, of the distribution of polarized emission from Cygnus A are presented. It has been found that there are significant variations of the magnitude and position angle of the polarization across each source component. Although there are no observations at other wavelengths with sufficient resolution to show this structure, a comparison of the integrated polarization from each component over the range $$1.55\,\text{cm}\,\lt\,\lambda\,\lt\,6\,\text{cm}$$ confirms the earlier conclusion that the rotation measure of the east component is much greater than that of the west component. The observations are related to a number of specific source models but none of them provide an entirely satisfactory explanation for the distribution of polarized emission.

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