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, 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, Atsuko Nitta, Stephanie A. SneddenDonald G. York

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

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 Δθ = 1″.40 and Δθ = 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.

Original languageEnglish (US)
Pages (from-to)1934-1941
Number of pages8
JournalAstronomical Journal
Volume131
Issue number4
DOIs
StatePublished - Apr 2006

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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