TIME DELAY BETWEEN IMAGES OF THE LENSED QUASAR UM673

We study brightness variations in the double lensed quasar UM673 (Q0142-100) with the aim of measuring the time delay between its two images. Methods.. We analyzed the V, R and I-band light curves of the A and B images of UM673, which cover ten observational seasons from August 2001 to November 2010...

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Bibliographic Details
Main Authors: E. Koptelova, W. P. Chen, T. Chiueh, B. P. Artamonov, V. L. Oknyanskij, S. N. Nuritdinov, O. Burkhonov, T. Akhunov, V. V. Bruevich, O. V. Ezhkova, A. S. Gusev, A. V. Sergeyev, Sh. A. Ehgamberdiev, M. A. Ibragimov
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2012-11-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/83310