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

35 Scopus citations


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
Issue number2
StatePublished - 2004

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


Dive into the research topics of 'SDSS J1335 + 0118: A new two-image gravitational lens'. Together they form a unique fingerprint.

Cite this