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arxiv: astro-ph/0512239 · v1 · pith:4Z5ERRTEnew · submitted 2005-12-09 · 🌌 astro-ph

SDSS J0806+2006 and SDSS J1353+1138: Two New Gravitationally Lensed Quasars from the Sloan Digital Sky Survey

Naohisa Inada , Masamune Oguri , Robert H. Becker , Richard L. White , Michael D. Gregg , Paul L. Schechter , Yozo Kawano , Christopher S. Kochanek
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Gordon T. Richards Donald P. Schneider J. C. Barentine Howard J. Brewington J. Brinkmann Michael Harvanek S. J. Kleinman Jurek Krzesinski Dan Long Eric H. Neilsen Jr. Atsuko Nitta Stephanie A. Snedden Donald G. York
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classification 🌌 astro-ph
keywords sdssj0806j1353digitalgalaxiesgravitationallyimageslensed
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We report the discoveries of two, two-image gravitationally lensed quasars selected from the Sloan Digital Sky Survey: SDSS J0806+2006 at z_s=1.540 and SDSS J1353+1138 at z_s=1.629 with image separations of 1.40" and 1.41" respectively. Spectroscopic and optical/near-infrared imaging follow-up observations show that the quasar images have identical redshifts and possess extended objects between the images that are likely to be lens galaxies at z_l~0.6 in SDSS J0806+2006 and z_l~0.3 in SDSS J1353+1138. The field of SDSS J0806+2006 contains several nearby galaxies that may significantly perturb the system, and SDSS J1353+1138 has an extra component near its Einstein ring that is probably a foreground star. Simple mass models with reasonable parameters reproduce the quasar positions and fluxes of both systems.

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