31 citations · 31 across the 2 of their papers we have counts for
3 papers · 1 filter
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…
Optical Continuum Sources in Gravitationally Lensed Quasars
L. J. Goicoechea, D. Alcalde, V. N. Shalyapin
We review some techniques to study the nature and size of the optical continuum sources in multiple QSOs. We focus on the source originating the events with several months timescal…
Extended CIII]lambda1909 emission in Q0957+561
E. Mediavilla, V. Motta, ; S. Arribas +7
2D spectroscopy of Q0957+561 in the CIII]lambda1909 emission line reveals a rich variety of spatially extended features. We point out: (i) a blueshifted region apparently connectin…