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Full-Text Articles in Physical Sciences and Mathematics
A Time Delay For The Cluster‐Lensed Quasar Sdss J1004+4112, J. Fohlmeister, C. S. Kochanek, E. E. Falco, J. Wambsganss, N. Morgan, C.W. Morgan, E.O. Ofek, D. Maoz, C.R. Keeton, J.C. Barentine, G. Dalton, J. Dembicky, W. Ketzeback, R. Mcmillan, C.S. Peters
A Time Delay For The Cluster‐Lensed Quasar Sdss J1004+4112, J. Fohlmeister, C. S. Kochanek, E. E. Falco, J. Wambsganss, N. Morgan, C.W. Morgan, E.O. Ofek, D. Maoz, C.R. Keeton, J.C. Barentine, G. Dalton, J. Dembicky, W. Ketzeback, R. Mcmillan, C.S. Peters
Dartmouth Scholarship
We present 426 epochs of optical monitoring data spanning 1000 days from 2003 December to 2006 June for the gravitationally lensed quasar SDSS J1004+4112. The time delay between the A and B images is tBA . 38: 42: 0 days (2 . 4) in the expected sense that B leads A and the overall time ordering is C-B-A-D-E. The measured delay invalidates all published models. The models probably failed because they neglected the perturbations from cluster member galaxies. Models including the galaxies can fit the data well, but conclusions about the clustermass distribution should await themeasurement of the longer, and …