Old Q0957+561 data & software:
► Simple FORTRAN programs to apply the d2 test (accurate and robust time delay measurements)
► Photos
Advertising:
The first phase of the monitoring programme with the 2 m Liverpool Robotic Telescope (LRT) began in 2005 January and finished in 2007 July. This Liverpool Quasar Lens Monitoring (LQLM) I project was carried out with the RATCam optical CCD camera on the LRT, using gri Sloan filters. The field of view and the pixel scale (binning 2
´ 2) were ~ 4.6' ´ 4.6' and 0.278², respectively. In this final data-tools release, we include the whole collection of frames (ARCHIVE) as well as photometric tools and outputs. With respect to the LQLM I archive, we note that basic instrumental reductions were applied to all frames. This incorporated bias subtraction, trimming of the overscan regions and flat fielding. Additional details on the CCD, the Sloan filters and the LRT pre-processing pipeline can be found at the Web of the LRT telescope.
► SBS 0909+532AB
● First robotic monitoring of a lensed quasar: intrinsic variability of SBS 0909+532 (NewA paper)
► QSO 0957+561AB
CROWED-FIELD PHOTOMETRY PIPELINE (CPP): BASIC DATA RELEASE (g band)
TRANSFORMATION PIPELINE (TP): FINAL DATA RELEASE (g band)
g-SDSS:
QSO 0957+561A &
QSO 0957+561B
QSO 0957+561A (including fluxes from some frames with 80 < SNR < 100)
r-SDSS:
QSO 0957+561A
& QSO 0957+561B
● New two-colour light curves of Q0957+561: time delays and origin of intrinsic variations (A&A paper)
● Structure function of the UV variability of Q0957+561 (A&A paper)
● Press Release: Mystery Of Twin Quasar Brightness Revealed
► FBQ 0951+2635AB
● Robotic Optical Monitoring of a Compact Lens System: FBQ 0951+2635 in the i Sloan Filter (Highlights of Spanish Astrophysics V)
● Microlensing variability in FBQ 0951+2635: short-timescale events or a long-timescale fluctuation? (MNRAS paper)