Abstract
BECAUSE QSOs are rare1,2 the discovery of close pairs with discordant redshifts is improbable if they are randomly distributed on the plane of the sky. But Stockton3 has reported that Ton155 and Ton156 form a pair of 17 mag QSOs, with a separation of approximately 35 arc s. For QSOs randomly distributed on the plane of the sky he gives the probability for an accidental occurrence of this close pair as 6×10−3.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Sandage, A. R., and Luyten, W. J., Astrophys. J., 155, 913 (1969).
Schmidt, M., Astrophys. J., 162, 371 (1970).
Stockton, A. N., Nature phys. Sci., 238, 37 (1972).
Baldwin, J. A., Burbidge, E. M., Hazard, C., Murdoch, H. S., Robinson, L. B., and Wampler, E. J., Astrophys. J. (in the press).
Hazard, C., Jauncey, D. L., Sargent, W. L. W., Baldwin, J. A., and Wampler, E. J., Nature, 246, 205 (1973).
Robinson, L. B., and Wampler, E. J., Publ. Astr. Soc. Pacific, 84, 161 (1972).
Berry, H. G., Bickel, W. S., Martinson, I., Weymann, R. J., and Williams, R. E., Astrophys. Lett., 5, 81 (1970).
Carswell, R. F., and Strittmatter, P. A., Nature, 242, 394 (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WAMPLER, E., BALDWIN, J., BURKE, W. et al. A Double Quasistellar Object. Nature 246, 203–205 (1973). https://doi.org/10.1038/246203a0
Received:
Issue Date:
DOI: https://doi.org/10.1038/246203a0
- Springer Nature Limited
This article is cited by
-
Close separation triple system QSO 1009-0252 with discordant redshifts: Is the spectrum of one component blueshifted?
Journal of Astrophysics and Astronomy (2009)
-
The statistics of quasar pairs
Nature (1986)
-
The statistical significance of close pairs of QSOs
Nature (1985)
-
Redshifts and distances
Nature (1979)
-
Plasma laser star model of QSOs
Astrophysics and Space Science (1978)