A new gravitational lens from the MUSCLES survey: ULAS J082016.1 081216

Journal Article · Fri Jun 19 00:00:00 EDT 2009 · Submitted to Monthly Notices of the Royal Astronomical Society

DOI:https://doi.org/10.1111/j.1365-2966.2009.15198.x· OSTI ID:957426

Jackson, Neal; Ofek, Eran O; Oguri, Masamune

We present observations of a new double-image gravitational lens system, ULAS J082016.1+081216, of image separation 2.3 and high ({approx}6) flux ratio. The system is selected from the Sloan Digital Sky Survey spectroscopic quasar list using new high-quality images from the UKIRT Deep Sky Survey (UKIDSS). The lensed quasar has a source redshift of 2.024, and we identify the lens galaxy as a faint red object of redshift 0.803 {+-} 0.001. Three other objects from the UKIDSS survey, selected in the same way, were found not to be lens systems. Together with the earlier lens found using this method, the SDSS-UKIDSS lenses have the potential to significantly increase the number of quasar lenses found in SDSS, to extend the survey to higher flux ratios and lower separations, and to give greater completeness which is important for statistical purposes.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 957426
• Report Number(s): SLAC-PUB-13665; arXiv:0906.2647
• Journal Information: Submitted to Monthly Notices of the Royal Astronomical Society, Journal Name: Submitted to Monthly Notices of the Royal Astronomical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Astrophysics
ASTRO
GRQC
LENSES
QUASARS
SKY
SPECTROSCOPY
TELESCOPES