A time delay for the cluster-lensed quasar SDSS J1004+4112
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 ΔtBA = 38.4 ± 2.0 days (Δχ2 = 4) in the expected sense that B leads A and the overall time ordering...
Main Authors: | Fohlmeister, J, Kochanek, C, Falco, E, Wambsganss, J, Morgan, N, Morgan, C, Üfek, E, Maoz, D, Keeton, C, Barentine, J, Dalton, G, Dembicky, J, Ketzeback, W, McMillan, R, Peters, C |
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格式: | Journal article |
語言: | English |
出版: |
Institute of Physics Publishing
2007
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