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...
Main Authors: | , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
Odessa I. I. Mechnykov National University
2012-11-01
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Series: | Odessa Astronomical Publications |
Online Access: | http://oap.onu.edu.ua/article/view/83310 |