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Active Galactic Nuclei
We report the discovery of a new probable gravitational lens system, associated with the quasar UM 425 = 1120+019, at ζ = 1.465. The optical image of the system consists of 4 or more components. The two wellobserved brightest components have very similar spectra. The difference of the two spectra (scaled appropriately) is consistent with a spectrum of a galaxy at ζ ~ 0.6. There is a large number of faint galaxies in the field, suggestive of a lensing cluster at that redshift. The quasar UM 425doi:10.1007/978-94-009-0963-2_81 fatcat:5g5biuvexffafiovev3ggdll3u