Eight new quasar lenses from the Sloan digital sky survey quasar lens search

Issha Kayo, Naohisa Inada, Masamune Oguri, Tomoki Morokuma, Patrick B. Hall, Christopher S. Kochanek, Donald P. Schneider

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


We report the discovery and confirmation of eight new two-image lensed quasars by the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. The lenses are SDSS J0904+1512 (image separation θ = 113, source redshift z s = 1.826), SDSS J1054+2733 (θ = 127, zs = 1.452), SDSS J1055+4628 (θ = 115, zs = 1.249), SDSS J1131+1915 (θ = 146, zs = 2.915), SDSS J1304+2001 (θ = 187, zs = 2.175), SDSS J1349+1227 (θ = 300, zs = 1.722), SDSS J1455+1447 (θ = 173, zs = 1.424), and SDSS J1620+1203 (θ = 277, zs = 1.158). Three of them, SDSS J1055+4628, SDSS J1455+1447, and SDSS J1620+1203, satisfy the criteria for constructing our statistical sample for studying the cosmological model. Based on galactic absorption lines of the lens galaxies, we also derive lens redshifts of zl = 0.398 and z l = 0.513 for SDSS J1620+1203 and the previously discovered lens SDSS J0746+4403, respectively.

Original languageEnglish (US)
Pages (from-to)1614-1621
Number of pages8
JournalAstronomical Journal
Issue number4
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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