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

Abstract

We present observations of a new double-image gravitational lens system, ULAS J082016.1+081216, of image separation 2.3" and high (~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.

Accepted by MNRAS. 6 pages, 5 figures

References in corpus (18)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The WFCAM Science Archive
• The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release
• The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample
• The UKIRT Wide Field Camera ZYJHK Photometric System: Calibration from 2MASS
• Low-Mass Dwarf Template Spectra from the Sloan Digital Sky Survey
• The Sloan Digital Sky Survey Quasar Lens Search. I. Candidate Selection Algorithm
• The Sloan Digital Sky Survey Quasar Lens Search. II. Statistical Lens Sample from the Third Data Release
• How robust are the constraints on cosmology and galaxy evolution from the lens-redshift test?
• The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release
• Five New High-Redshift Quasar Lenses from the Sloan Digital Sky Survey
• Discovery of Four Gravitationally Lensed Quasars from the Sloan Digital Sky Survey
• Two New Gravitationally Lensed Double Quasars from the Sloan Digital Sky Survey
• Discovery of a Gravitationally Lensed Quasar from the Sloan Digital Sky Survey: SDSS J133222.62+034739.9
• Mass models and environment of the new quadruply lensed quasar SDSS J1330+1810
• SDSS J131339.98+515128.3: A new gravitationally lensed quasar selected based on near-infrared excess
• A New Quadruply Lensed Quasar: SDSSJ125107.57+293540.5
• ULAS J234311.93-005034.0: A gravitational lens system selected from UKIDSS and SDSS

Cited by in corpus (8)

• The Sloan Digital Sky Survey Quasar Lens Search. V. Final Catalog from the Seventh Data Release
• The Microlensing Properties of a Sample of 87 Lensed Quasars
• Gravitationally lensed quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2
• Gravitational lensing reveals extreme dust-obscured star formation in quasar host galaxies
• Subaru Telescope adaptive optics observations of gravitationally lensed quasars in the Sloan Digital Sky Survey
• The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release
• New lensed quasars from the MUSCLES survey
• New Dynamical Measurements from a Lensed Quasar Sample: Joint Analysis Constrains the Mass Profile Evolution of Lens Galaxies