Abstract
Oke1 and Sandage2 have shown that the N-galaxy 3C371 is variable. This communication reports the discovery that the similar system 3C390.3 has been varying by up to about 1.5m during the past 70 years. This is interpreted as showing that at least some quasars are cosmological.
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References
Oke, J. B., Ap. J., 150, 5 (1967).
Sandage, A. R., Ap. J., 150, L9 (1967).
Wyndham, J. D., Ap. J., 144, 459 (1966).
Sandage, A. R., Ap. J., 145, 1 (1966).
Sandage, A. R., Ap. J., 135, 333 (1962).
Harding, G. A., and Penston, M. J., Roy. Obs. Bull., No. 115, 1966.
Penston, M. V., and Cannon, R. D., Roy. Obs. Bull. (in preparation).
Heeschen, D. S., Ap. J., 146, 517 (1966).
Ryle, M., and Longair, M. S., Mon. Not. Roy. Astro. Soc., 136, 123 (1967).
Barbieri, C., Battistini, P., and Nasi, E., Pub. Astro. Obs. Padua, No. 141 (1967).
Burbidge, E. M., Ann. Rev. Astro. and Ap., 5, 399 (1967).
Sandage, A. R., Ap. J., 146, 13 (1966).
Conway, R. G., Daintree, E. J., and Long, R. J., Mon. Not. Roy. Astro. Soc., 131, 159 (1965).
Pilkington, J. D. H., and Scott, P. F., Mem. Roy. Astro. Soc., 69, Pt. 5 (1965).
Gower, J. F. R., Scott, P. F., and Wills, D., Mem. Roy. Astro. Soc., 71, Pt. 2 (1967).
Schmidt, M., and Matthews, T. A., Ap. J., 139, 781 (1964).
Sandage, A. R., and Miller, W. C., Ap. J., 144, 1238 (1966).
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CANNON, R., PENSTON, M. & PENSTON, M. 3C390.3, a Second Variable N-Galaxy. Nature 217, 340–341 (1968). https://doi.org/10.1038/217340a0
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DOI: https://doi.org/10.1038/217340a0
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