1. Discovery and first models of the quadruply lensed quasar SDSS J1433+6007.
- Author
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Agnello, Adriano, Grillo, Claudio, Jones, Tucker, Treu, Tommaso, Bonamigo, Mario, and Suyu, Sherry H.
- Subjects
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SPECTRA of quasars , *GRAVITATIONAL lenses , *OPTICAL telescopes , *ULTRAVIOLET astronomy , *ASTRONOMICAL photometry , *REDSHIFT - Abstract
We report the discovery of the quadruply lensed quasar SDSS J1433+6007 (RA =14:33:22.8, Dec.=+60:07:13.44), mined in the SDSS DR12 photometric catalogues using a novel outlierselection technique, without prior spectroscopic or ultraviolet excess information. Discovery data obtained at the Nordic Optical Telescope (La Palma) show nearly identical quasar spectra at zs = 2.737 ± 0.003 and four quasar images in a fold configuration, one of which sits on a blue arc, with maximum separation 3.6 arcsec. The deflector redshift is zl = 0.407 ± 0.002, from Keck-ESI spectra. We describe the selection procedure, discovery and follow-up, image positions and BVRi magnitudes, and first results and forecasts from lens model fit to the relative image positions. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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