Abstract
We report here an exceedingly large amplitude radio outburst presently occurring in the quasi-stellar source 1921 – 29 (also known as OV – 236). This source which had exhibited slow ±25% variations about a 6 Jy level (1 Jy = 10−26 W m−2 Hz−1) at centimetre wavelengths since 1971 has suddenly increased by more than a factor of 3 to 20 Jy. At 31 GHz, 1921 – 29 is now the strongest known quasar in the sky, even exceeding 3C273 which has been decreasing since 1975.
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References
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Dent, W., Balonek, T. A dramatic radio outburst in the quasar 1921 – 29. Nature 283, 747–748 (1980). https://doi.org/10.1038/283747a0
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DOI: https://doi.org/10.1038/283747a0
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