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SDSS J1335 + 0118: A new two-image gravitational lens

  • Masamune Oguri
  • , Naohisa Inada
  • , Francisco J. Castander
  • , Michael D. Gregg
  • , Robert H. Becker
  • , Shin Ichi Ichikawa
  • , Bartosz Pindor
  • , Jonathan Brinkmann
  • , Daniel J. Eisenstein
  • , Joshua A. Frieman
  • , Patrick B. Hall
  • , David E. Johnston
  • , Gordon T. Richards
  • , Paul L. Schechter
  • , Donald P. Schneider
  • , Alexander S. Szalay

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the discovery of the two-image gravitationally lensed quasar SDSS J1335 + 0118. The object was selected as a lens candidate from the Sloan Digital Sky Survey. The imaging and spectroscopic follow-up observations confirm that the system exhibits two gravitationally lensed images of a quasar at z = 1.57. The image separation is 1.″56. We also detect an extended component between the two quasar images, likely to be a lensing galaxy. Preliminary mass modeling predicts a differential time delay, δt of ∼ 30h-1 day, assuming the redshift of the lens galaxy to be 0.5.

Original languageEnglish (US)
Pages (from-to)399-405
Number of pages7
JournalPublications of the Astronomical Society of Japan
Volume56
Issue number2
DOIs
StatePublished - 2004

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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