Abstract
Cooper and Price1 have shown that the polarization of radio emission measured at three different points in the radio source Centaurus A rotated progressively with increasing wave-length. They found the rate of rotation to be proportional to the square of the wave-length. This fact suggested to Cooper and Price a direct explanation in terms of Faraday rotation in a magneto-ionic medium. Recently, Gardner and Whiteoak2 measured the polarization of 18 radio sources at different wave-lengths in order to investigate whether Faraday rotation was present. All the sources showed the quadratic dependence of polarization position-angle on wave-length characteristic of Faraday effect. In the discussion of their results, Gardner and Whiteoak suggested the possibility that some of the Faraday rotation occurs in our Galaxy (Fig. 1 in ref. 2).
Similar content being viewed by others
Article PDF
References
Cooper, B. F. C., and Price, R. M., Nature, 195, 1084 (1962).
Gardner, F. F., and Whiteoak, J. B., Nature, 197, 1162 (1963).
Evans, J. V., Proc. Phys. Soc., B, 69, 953 (1956).
Maltby, P., Matthews, T. A., and Moffet, A. T., Astrophys. J., 137, 153 (1963).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
PACHOLCZYK, A. Faraday Rotation Effect in Extragalactic Radio Sources. Nature 200, 765 (1963). https://doi.org/10.1038/200765a0
Issue Date:
DOI: https://doi.org/10.1038/200765a0
This article is cited by
-
Relativistic Jets in Active Galactic Nuclei and Microquasars
Space Science Reviews (2017)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.