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Monitoring of Lensed Quasars

Eran Ofek, Dan Maoz, Avishay Gal-Yam

Using the Wise observatory 1m telescope we have been monitoring in broad-band V and R a sample of about 30 gravitationally lensed quasars. We are constantly updating the sample with new lens systems. Two sources, B1422+231 and APM08279+5255, are bright mR<16, high-redshift quasars and are also monitored spectroscopically.

 Status of observations. Last observation
 Prelimnary Light Curves + Finding Charts.
 Measured time delay

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Constructed: January 2000, Eran Ofek