Abstract
WHILE studying the nucleus of 3C446 Cannon and Penston1 put forward a hypothesis involving a small continuous source of constant luminosity which may be temporarily obscured by absorbing clouds. This hypothesis is supported by our observations2 of the nucleus of the N-galaxy 3C371, which reveal variations of its luminosity during a characteristic time of t = 40 min, or 2.4 × 103 s.
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Cannon, R. D., and Penston, M. V., Nature, 214, 256–257 (1967).
Ourassine, L. A., and Lavrova, N. V., Cirk. izdav. Bjuro astr. soobshch. Acad. Nauk SSSR, No. 744, 4–6 (1973).
Ambartsumian, V. A., et al., Problémes de cosmogonie contemporame (Moscow, Edition “MIR”, 1971) (in French).
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OURASSINE, L. Optical variation of 3C371. Nature 254, 125 (1975). https://doi.org/10.1038/254125a0
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DOI: https://doi.org/10.1038/254125a0
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