Abstract
A giant radio outburst was observed from the X-ray source Cygnus X-3 on September 2, 1972. Flux density measurements were obtained at 10,522, 6,630 and 3,240 MHz as well as linear polarization measurements at 10,522 MHz. The evidence suggests a model of synchrotron radiation from an expanding cloud of relativistic particles. A computed upper limit for the source distance of ≤400 kpc implies that the source of the radio emission is galactic.
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References
Gregory, P. C., Seaquist, E. R., Kronberg, P. P., Hughes, V. A., Woodsworth, A., Viner, M. R., Retallack, D., Hjellming, R. M., and Balick, B., Nature Physical Science (in the press).
Braes, L. L. E., and Miley, G. K., Nature, 237, 506 (1972).
Hjellming, R. M., Hermann, M., and Webster, E., Nature, 237, 507 (1972).
Hjellming, R. M., and Balick, B., Nature, 239, 443 (1972).
MacLeod, J. M., and Doherty, L. H., Astrophys. J., 154, 833 (1968).
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GREGORY, P., KRONBERG, P., SEAQUIST, E. et al. Discovery of Giant Radio Outburst from Cygnus X-3. Nature 239, 440–443 (1972). https://doi.org/10.1038/239440a0
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DOI: https://doi.org/10.1038/239440a0
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