Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-12-09
Astron.J.131:1934-1941,2006
Astronomy and Astrophysics
Astrophysics
27 pages, 7 figures, The Astronomical Journal accepted
Scientific paper
10.1086/500591
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.
Jr.
Barentine John C.
Becker Robert H.
Brewington Howard J.
Brinkmann John
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