A Time Delay for the Largest Gravitationally Lensed Quasar: SDSS J1004+4112
We present 426 epochs of optical monitoring data spanning 1000 days from December 2003 to June 2006 for the gravitationally lensed quasar SDSS J1004+4112. The time delay between the A and B images is 38.4+/-2.0 days in the expected sense that B leads A and the overall time ordering is C-B-A-D-E. The...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Published: |
2006
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