18 citations · 18 across the 1 of their papers we have counts for
3 papers
Is there a caustic crossing in the lensed quasar Q2237+0305 observational data record?
R. Gil-Merino, J. Gonzalez-Cadelo, L. J. Goicoechea +2
We re-investigate the gravitationally lensed system Q2237+0305 data record to quantify the probability of having a caustic crossing in the A component. Several works assume that th…
New VR magnification ratios of QSO 0957+561
L. J. Goicoechea, R. Gil-Merino, A. Ullan +5
We present VR magnification ratios of QSO 0957+561, which are inferred from the GLITP light curves of Q0957+561A and new frames taken with the 2.56m Nordic Optical Telescope about…
QSO size ratios from multiband monitoring of a microlensing high-magnification event
L. J. Goicoechea, V. Shalyapin, J. Gonzalez-Cadelo +1
We introduce a new scheme to study the nature of the central engine in a lensed QSO. The compact emission regions could have different sizes in different optical wavelengths, and o…