Abstract
WE report the discovery of a second QSO with a redshift greater than 3. Spectra taken at the 120-inch at Lick Observatory1 give z = 3.53 for OQ172. Carswell and Strittmatter2 have found the redshift of OH471 to be z = 3.40. Our attention was drawn to the object by the work of Gent et al.3 on Molonglo radio sources. Accurate radio coordinates for OQ172 were communicated to us ahead of publication by C. Hazard and H. Gent. They are: α (1950) 14 h 42 min 50.48 s δ (1950) 10° 11′ 12.4″
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References
Fitch, L. T., Dixon, R. S., and Kraus, J. D., Astron. J., 74, 612 (1969).
Carswell, R. F., and Strittmatter, P. A., Nature, 242, 394 (1973).
Gent, H., Crowther, J. H., Adgie, R. L., Hoskins, D. G., Murdoch, H. S., Hazard, C., and Jauncey, D. L., Nature, 241, 261 (1973).
Véron, M. P., Astron. Astrophys., 11, 1 (1971).
Witzel, A., Véron, P., and Véron, M. P., Astron. Astrophys., 11, 171 (1971).
Robinson, L. B., and Wampler, E. J., Publ. Astron. Soc. Pacific, 84, 161 (1972).
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WAMPLER, E., ROBINSON, L., BALDWIN, J. et al. Redshift of OQ172. Nature 243, 336–337 (1973). https://doi.org/10.1038/243336a0
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DOI: https://doi.org/10.1038/243336a0
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