Abstract
Clues to the origin of the enormously energetic activity in quasars and galactic nuclei may come from observations of the varying radio emission from several objects outside the Galaxy. The varying signals from these objects often seem to come from areas which are only a few light months in diameter.
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REES, M., SIMON, M. Extragalactic Variable Radio Sources. Nature 227, 1303–1306 (1970). https://doi.org/10.1038/2271303a0
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DOI: https://doi.org/10.1038/2271303a0
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