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...
Autors principals: | , , , , , , , , , , , , , , |
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Format: | Journal article |
Idioma: | English |
Publicat: |
Institute of Physics Publishing
2007
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