SDSS J094604.90+183541.8: A gravitationally lensed quasar at z = 4.8
We report the discovery of a gravitationally lensed quasar identified serendipitously in the Sloan Digital Sky Survey (SDSS). The object, SDSS J094604.90+183541.8, was initially targeted for spectroscopy as a luminous red galaxy, but the SDSS spectrum has the features of both a z = 0.388 galaxy and a z = 4.8 quasar. We have obtained additional imaging that resolves the system into two quasar images separated by 3'.'06 and a bright galaxy that is strongly blended with one of the quasar images....[Show more]
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