Abstract
Recently, Walsh, Carswell and Weymann1 reported the discovery of two objects (0957+56A,B) with identical spectra and separated by 6 arc min. They suggested that a gravitational lens was responsible. The cumulative result of subsequent work on this object (see refs 2–9) corroborates this interpretation. The example of 0957+56A,B and the data presented here suggest a similar phenomenon is involved in the case of PG1115+08.
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References
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Weymann, R., Latham, D., P. Angel, J. et al. The triple QSO PG1115 + 08: another probable gravitational lens. Nature 285, 641–643 (1980). https://doi.org/10.1038/285641a0
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DOI: https://doi.org/10.1038/285641a0
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