Two New Gravitationally Lensed Double Quasars from the Sloan Digital Sky Survey

Abstract

We report the discoveries of the two-image gravitationally lensed quasars, SDSS J0746+4403 and SDSS J1406+6126, selected from the Sloan Digital Sky Survey (SDSS). SDSS J0746+4403, which will be included in our lens sample for statistics and cosmology, has a source redshift of z_s=2.00, an estimated lens redshift of z_l~0.3, and an image separation of 1.08". SDSS J1406+6126 has a source redshift of z_s=2.13, a spectroscopically measured lens redshift of z_l=0.27, and an image separation of 1.98". We find that the two quasar images of SDSS J1406+6126 have different intervening MgII absorption strengths, which are suggestive of large variations of absorbers on kpc scales. The positions and fluxes of both the lensed quasar systems are easily reproduced by simple mass models with reasonable parameter values. These objects bring to 18 the number of lensed quasars that have been discovered from the SDSS data.

arXiv comment25 pages, 6 figures, The Astronomical Journal accepted

References in corpus (46)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The Sloan Digital Sky Survey: Technical Summary
• Detailed Structural Decomposition of Galaxy Images
• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
• The Sloan Digital Sky Survey Photometric Camera
• The u'g'r'i'z' Standard Star Network
• The Second Data Release of the Sloan Digital Sky Survey
• The Fourth Data Release of the Sloan Digital Sky Survey
• Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Quasar Sample
• The First Data Release of the Sloan Digital Sky Survey
• Astrometric Calibration of the Sloan Digital Sky Survey
• The Third Data Release of the Sloan Digital Sky Survey
• A photometricity and extinction monitor at the Apache Point Observatory
• An Efficient Algorithm for Positioning Tiles in the Sloan Digital Sky Survey
• Evidence for substructure in lens galaxies?
• SDSS Data Management and Photometric Quality Assessment
• A Modified Magnitude System that Produces Well-Behaved Magnitudes, Colors, and Errors Even for Low Signal-to-Noise Ratio Measurements
• The Cosmic Lens All-Sky Survey: I. Source selection and observations
• ESI, a new Keck Observatory echellette spectrograph and imager
• The Cosmic Lens All-Sky Survey:II. Gravitational lens candidate selection and follow-up
• The Sloan Digital Sky Survey Monitor Telescope Pipeline
• The Sloan Digital Sky Survey Quasar Catalog III. Third Data Release
• A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
• The Sloan Digital Sky Survey Quasar Lens Search. I. Candidate Selection Algorithm
• Constraints on Cosmological Parameters from the Analysis of the Cosmic Lens All Sky Survey Radio-Selected Gravitational Lens Statistics
• Improved Cosmological Constraints from Gravitational Lens Statistics
• The Evolution of a Mass-Selected Sample of Early-Type Field Galaxies
• Observations and Theoretical Implications of the Large Separation Lensed Quasar SDSS J1004+4112
• SDSS J092455.87+021924.9: an Interesting Gravitationally Lensed Quasar from the Sloan Digital Sky Survey
• The Sizes and Kinematic Structure of Absorption Systems Towards the Lensed Quasar APM08279+5255
• Effects of Triaxiality on the Statistics of Large-Separation Gravitational Lenses
• Discovery of Two Gravitationally Lensed Quasars with Image Separations of 3 Arcseconds from the Sloan Digital Sky Survey
• The First FIRST Gravitationally Lensed Quasar: FBQ 0951+2635
• SDSS J0903+5028: A New Gravitational Lens
• SDSS J0246-0825: A New Gravitationally Lensed Quasar from the Sloan Digital Sky Survey
• SDSS J115517.35+634622.0: A Newly Discovered Gravitationally Lensed Quasar
• SDSS J1335+0118: A New Two-Image Gravitational Lens
• Models of the giant quadruple quasar SDSS J1004+4112
• SDSS J0806+2006 and SDSS J1353+1138: Two New Gravitationally Lensed Quasars from the Sloan Digital Sky Survey
• SDSS J1650+4251: A New Gravitational Lens
• SDSSJ102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar
• Discovery of a Gravitationally Lensed Quasar from the Sloan Digital Sky Survey: SDSS J133222.62+034739.9
• The Gravitational Lens Candidate FBQ 1633+3134
• RETROCAM: A Versatile Optical Imager for Synoptic Studies

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• 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
• Lensing, reddening and extinction effects of MgII absorbers from z=0.4 to z=2
• The Sloan Digital Sky Survey Quasar Lens Search. II. Statistical Lens Sample from the Third Data Release
• A Cross-Correlation Analysis of Mg II Absorption Line Systems and Luminous Red Galaxies from the SDSS DR5
• The Sloan Digital Sky Survey Quasar Lens Search. VI. Constraints on Dark Energy and the Evolution of Massive Galaxies
• Gravitational lensing reveals extreme dust-obscured star formation in quasar host galaxies
• The Sloan Digital Sky Survey Quasar Lens Search. IV. Statistical Lens Sample from the Fifth Data Release
• Subaru Telescope adaptive optics observations of gravitationally lensed quasars in the Sloan Digital Sky Survey
• Gravitationally Lensed Quasars in Gaia: I. Resolving Small-Separation Lenses
• Eight New Quasar Lenses from the Sloan Digital Sky Survey Quasar Lens Search
• Deep and rapid observations of strong-lensing galaxy clusters within the sky localisation of GW170814
• The PCA Lens-Finder: application to CFHTLS
• A New Quadruply Lensed Quasar: SDSSJ125107.57+293540.5
• ULAS J234311.93-005034.0: A gravitational lens system selected from UKIDSS and SDSS
• Validity of strong lensing statistics for constraints on the galaxy evolution model
• The SDSS Discovery of a Strongly Lensed Post-Starburst Galaxy at z=0.766
• A new gravitational lens from the MUSCLES survey: ULAS J082016.1+081216
• Is There a Quad Problem among Optical Gravitational Lenses?
• Resolving the Internal Structure of Circum-Galactic Medium using Gravitationally Lensed Quasars
• Strange Quasar Candidates with Abnormal Astrometric Characteristics from Gaia EDR3 and SDSS (SQUAB-II): Optical Identifications
• Cusped Mass Density Profiles and Magnification Ratios of Double Image Gravitational Lenses
• New Dynamical Measurements from a Lensed Quasar Sample: Joint Analysis Constrains the Mass Profile Evolution of Lens Galaxies