Measurements of the linear polarization of radio sources at decimeter wavelengths

Measurements at three frequencies of the degree and preferred orientation of the linearly polarized radiation from twenty-five unresolved radio sources are reported. The frequencies used were 2840 Mc/s, 1666 Mc/s, and 1420 Mc/s. The results are combined with those of other observers in order to derive properties of the emitting sources and of the Galaxy. An interferometric technique for determining the distribution of polarized radiation within a radio source is developed and applied to a few sources. Calculations on some model source distributions are included