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Test of the gravitational lens hypothesis for the quasar pair 1146+111B,C

Abstract

It has recently been suggested1 that the quasars 1146 + 111B,C, separated on the sky by 2.6 arc min, are actually two images of a single object produced by an extremely massive gravitational lens. The basis for this suggestion is the similarity in redshifts (within 100–200 km s−1) and spectral features. Here we report differences between the two spectra in a hitherto unobserved range, suggesting that the two images are in fact distinct quasars located close together in space.

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Shaver, P., Cristiani, S. Test of the gravitational lens hypothesis for the quasar pair 1146+111B,C. Nature 321, 585–586 (1986). https://doi.org/10.1038/321585a0

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  • DOI: https://doi.org/10.1038/321585a0

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