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most citedThe 2dF-SDSS LRG and QSO Survey: QSO clustering and the L-z degeneracy

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astro-ph2003

Observations and Theoretical Implications of the Large Separation Lensed Quasar SDSS J1004+4112

M. Oguri, N. Inada, C. R. Keeton +25

We study the recently discovered gravitational lens SDSS J1004+4112, the first quasar lensed by a cluster of galaxies. It consists of four images with a maximum separation of 14.62…