Journal article

SDSS J024634.11-082536.2: A new gravitationally lensed quasar from the Sloan Digital Sky Survey

N Inada, S Burles, MD Gregg, RH Becker, PL Schechter, DJ Eisenstein, M Oguri, FJ Castander, PB Hall, DE Johnston, B Pindor, GT Richards, DP Schneider, RL White, J Brinkmann, AS Szalay, DG York



We report the discovery of a new two-image gravitationally lensed quasar, SDSS J024634.11-082536.2 (SDSS J0246-0825). This object was selected as a lensed quasar candidate from the Sloan Digital Sky Survey (SDSS) by the same algorithm that was used to discover other SDSS lensed quasars (e.g., SDSS J0924+0219). Multicolor imaging with the Magellan Consortium's Walter Baade 6.5 m telescope and spectroscopic observations using the W. M. Keck Observatory's Keck II telescope confirm that SDSS J0246-0825 consists of two lensed images (Δθ = 1″.04) of a source quasar at z = 1.68. Imaging observations with the Keck I telescope and the Hubble Space Telescope reveal an extended object between the two q..

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University of Melbourne Researchers