Abstract
WITH the announcement of the existence of polarization in the Crab Nebula at a wave-length of 21 cm1, a new method of determining the galactic magnetic field becomes available—the measurement of the Faraday rotation of the plane of polarization due to the presence of anomalous dispersion in the neighbourhood of the 21-cm line of neutral hydrogen. This may be calculated as follows:
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References
Radhakrishnan, V., and Morris, D., Astrophys. J., 137 (in the press).
Clark, B. G., Radhakrishnan, V., and Wilson, R. W., Astrophys. J., 135, 151 (1962).
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CLARK, B. A New Method of directly measuring the Galactic Magnetic Field. Nature 197, 474 (1963). https://doi.org/10.1038/197474a0
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DOI: https://doi.org/10.1038/197474a0
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