31 citations · 33 across the 3 of their papers we have counts for
3 papers
First robotic monitoring of a lensed quasar: intrinsic variability of SBS 0909+532
L. J. Goicoechea, V. N. Shalyapin, E. Koptelova +3
To go into the details about the variability of the double quasar SBS 0909+532, we designed a monitoring programme with the 2 m Liverpool Robotic Telescope in the r Sloan filter, s…
Reconstruction of the quasar brightness profile from observations of high magnification events
Ekaterina Koptelova, Elena Shimanovskaya
The analysis of the high magnification events in the A and C components of the quadruple gravitational lens QSO2237+0305 observed by OGLE and GLITP collaborations in V band was car…
Reconstructing images of gravitational lenses with regularizing algorithms
E. Koptelova, E. Shimanovskaya, B. Artamonov +3
This note addresses possible applications of the Tikhonov regularization to image reconstruction of gravitational lens systems. Several modifications of the regularization algorith…