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Variation in the Polarization Across Bends in the Spectra of Self-Absorbed Synchrotron Sources

Published online by Cambridge University Press:  25 April 2016

D. B. Melrose
D. B. Melrose*
Affiliation:
Department of Theoretical Physics, Faculty of Science, Australian National University
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Extract

The accepted interpretation of the low frequency turnovers in the spectra of many extragalactic radio sources is that they are due to the effects of synchrotron self-absorption, i.e. to the source becoming optically thick. It has been shown that the signs of the degrees of both linear and circular polarization for a homogeneous source at frequencies where it is optically thick are opposite to those at frequencies where it is optically thin.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 2 , Issue 3 , October 1972 , pp. 140 - 142
Copyright
Copyright © Astronomical Society of Australia 1972

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References

1 Melrose, D. B., Astrophys. Space Set., 12, 172 (1971).CrossRefGoogle Scholar
2 Pacholczyk, A. G. and Swihart, T. L., Astrophys. J., 170, 405 (1971).CrossRefGoogle Scholar
3 Legg, M. P. C. and Westfold, K. C., Astrophys. J., 154, 499 (1968).CrossRefGoogle Scholar
4 Roberts, J. A., Ribes, J. C., Murray, J. D. and Cooke, D. J., Nature Phys. Sci., 236, 3 (1972).CrossRefGoogle Scholar