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. Snedden
  • Donald G. York

Research output: Contribution to journalArticlepeer-review

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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