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arXiv · 1702.03942

Discovery and first models of the quadruply lensed quasar SDSS J1433+6007

Adriano Agnello·Claudio Grillo·Tucker Jones·Tommaso Treu·Mario Bonamigo·Sherry H. Suyu
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Abstract

We report the discovery of the quadruply lensed quasar J1433+6007, mined in the SDSS DR12 photometric catalogues using a novel outlier-selection technique, without prior spectroscopic or UV excess information. Discovery data obtained at the Nordic Optical telescope (NOT, La Palma) show nearly identical quasar spectra at $z_s=2.74$ and four quasar images in a fold configuration, one of which sits on a blue arc. The deflector redshift is $z_{l}=0.407,$ from Keck-ESI spectra. We describe the selection procedure, discovery and follow-up, image positions and $BVRi$ magnitudes, and first results and forecasts from simple lens models.

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Adriano Agnello, Claudio Grillo, Tucker Jones, Tommaso Treu, Mario Bonamigo, Sherry H. Suyu. 2017-02-13. Discovery and first models of the quadruply lensed quasar SDSS J1433+6007. https://doi.org/10.1093/mnras%2Fstx2950

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