Abstract
OBSERVATIONS have been made at Jodrell Bank of the linear polarization of ninety-one radio sources at a frequency of 610 MHz (λ 49.1 cm). The sources have flux densities greater than 5 flux units (with the exception of VRO 42.22.01), and have galactic latitudes greater than 10°. In order to discriminate against the (partially polarized) background radiation of the Galaxy, the observations were taken using two radio telescopes—the 250 foot Mark I and the 125 foot Mark II—as an interferometer. The method has already been described1,2 and a fuller description of these observations is in preparation. Here we report a striking correlation between the degree of linear polarization at λ 49 cm and the spectral index of the twenty-three quasars included in the observations.
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GILBERT, J., CONWAY, R. & KRONBERG, P. Relation between the Linear Polarization and Spectral Index of Quasars. Nature 223, 1252 (1969). https://doi.org/10.1038/2231252a0
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DOI: https://doi.org/10.1038/2231252a0
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