A New Gravitational Lens Candidate with Large Image Separation in the SDSS DR5 Data

Details A New Gravitational Lens Candidate with Large Image Separation in the SDSS DR5 Data A New Gravitational Lens Candidate with Large Image Separation in the SDSS DR5 Data

2007-01-18

arxiv.org/abs/astro-ph/0701537v1

Astronomy and Astrophysics

Astrophysics

14 pages, 3 figures

Scientific paper

The discovery of a gravitational lens candidate is reported. The quasars SDSS J111611.73+411821.5 and SDSS J111610.68+411814.4 are recognized as two images of the same object, being strongly lensed by the closer galaxy SDSS J111611.03+411820.9. The source is located at a redshift of z~3, while the redshift of the lens galaxy is z~0.25. The separation of the images is large,~13 arcsec. Commonly used models of the mass distribution for the lens galaxy with values of the parameters in the expected range describe the positions and fluxes of the images.

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