Letter | Published:

Optical variation of 3C371

Naturevolume 254page125 (1975) | Download Citation

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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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References

  1. 1

    Cannon, R. D., and Penston, M. V., Nature, 214, 256–257 (1967).

  2. 2

    Ourassine, L. A., and Lavrova, N. V., Cirk. izdav. Bjuro astr. soobshch. Acad. Nauk SSSR, No. 744, 4–6 (1973).

  3. 3

    Ambartsumian, V. A., et al., Problémes de cosmogonie contemporame (Moscow, Edition “MIR”, 1971) (in French).

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Affiliations

  1. Alger Astronomical Observatory, Bouzareah, Alger, Algéria

    • LIRIK OURASSINE

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DOI

https://doi.org/10.1038/254125a0

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