Preprint Logo P42 September
2000


To be published in:
the proceedings of the conference held in Boston 25-30 July, 1999: gravitational lensing: recent progress and future goals.

Time delay measurements at the NOT.

Jens Hjorth1, Ingunn Burud2, Andreas O. Jaunsen3, Michael I. Andersen4, Heidi Korhonen4, Jacob W. Clasen4 and Roy Østensen5


1 Astronomical Observatory, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen, Denmark
2 Institut d'Astrophysique et de Géophysique - Université de Liège, Avenue de Cointe 5, 4000 Liège, Belgium
3 Institute of Theoretical Astrophysics, University of Oslo, Pb. 1029 Blindern, N0315 Oslo, Norway
4 Nordic Optical Telescope, Apartado 474, E-38700 St. Cruz de La Palma, Canary Islands, Spain
5 Departement of Physics, Univertity of Tromsø,Tromsø, Norway


Abstract

     With the aim of measuring time delays for a sample of gravitationally lensed QSOs we are conducting a long-term photometric monitoring project at the Nordic Optical Telescope (NOT). We present photometric light curves with preliminary time delays and deep high-resolution images obtained using the MCS image deconvolution algorithm.

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