33 citations · 33 across the 2 of their papers we have counts for
3 papers · 1 filter
The time-delay of the gravitationally lensed double quasar UM 673
T. A. Akhunov, R. W. Schmidt, O. Burkhonov +11
The paper has been withdrawn because double checking and comparison with other data sets after the original submission showed that a broken R-band filter at the Maidanak telescope…
Time delay of SBS 0909+532
A. Ullan, L. J. Goicoechea, A. P. Zheleznyak +4
The time delays between the components of a lensed quasar are basic tools to analyze the expansion of the Universe and the structure of the main lens galaxy halo. In this paper, we…
Image reconstruction technique and optical monitoring of the QSO2237+0305 from Maidanak Observatory in 2002 -- 2003
E. A. Koptelova, E. V. Shimanovskaya, B. P. Artamonov +4
We have observed the gravitational lens system Q2237+0305 from the Maidanak Observatory over the period from August 2002 to November 2003. Here we report the results of our observa…