50 citations · 81 across the 3 of their papers we have counts for
15 papers · 1 filter
Structure function of the UV variability of Q0957+561
L. J. Goicoechea, V. N. Shalyapin, R. Gil-Merino +1
We present a detailed structure function analysis of the UV variability of Q0957+561. From new optical observations, we constructed normalized structure functions of the quasar lum…
New two-colour light curves of Q0957+561: time delays and the origin of intrinsic variations
V. N. Shalyapin, L. J. Goicoechea, E. Koptelova +2
We extend the gr-band time coverage of the gravitationally lensed double quasar Q0957+561. New gr light curves permit us to detect significant intrinsic fluctuations, to determine…
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…
The AAT/WFI survey of the Monoceros Ring and Canis Major Dwarf galaxy: I. from l = (193 - 276)o
Blair C. Conn, Richard R. Lane, Geraint F. Lewis +8
We present the results of an AAT wide-field camera survey of the stars in the Monoceros Ring and purported Canis Major overdensity in the Galactic longitudes of {\it l} = (193 - 27…
Microlensing of a Biconical Broad Line Region
C. Abajas, E. Mediavilla, J. A. Munoz +2
The influence of microlensing in the profiles of the emission lines generated in a biconical geometry is discussed. Microlensing amplification in this anisotropic model is not dire…
Gravitationally Lensed QSOs: Optical Monitoring with the EOCA and the Liverpool Telescope (LT)
L. J. Goicoechea, A. Ullan, J. E. Ovaldsen +3
The aim of this contribution is to present the two first phases of the optical monitoring programme of the Gravitational Lenses group at the Universidad de Cantabria (GLUC, http://…