Abstract
THE source 0048-097 was reported in the Parkes catalogue1 and later identified by Bolton and Ekers2 with an 18 mag blue galaxy in a small cluster. A number of accounts have been published of its rapid radio variability at high frequency3-6. Stull3 has pointed out that the radio spectrum (which shows no low frequency component) is similar to that of BL Lac. Kellermann and Pauliny-Toth7 have measured the radio spectrum up to 100 GHz and found a peak (at 1970.0) near 10 GHz. It is not, however, possible to determine the nature of the object from the radio spectrum alone.
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References
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CARSWELL, R., STRITTMATTER, P., DISNEY, M. et al. New Light on the Variable Radio Source, 0048-097. Nature Physical Science 246, 89–90 (1973). https://doi.org/10.1038/physci246089a0
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DOI: https://doi.org/10.1038/physci246089a0
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