Liverpool Quasar Lens Monitoring

This collection includes optical monitorings of gravitationally lensed quasars. The frames can be used to make light curves of quasar images and field objects. From quasar light curves, one may measure time delays and flux ratios, analyse variability and chromaticity, etc. These direct analyses/measurements are basic tools for different astrophysical studies, e.g., expansion rate of the Universe, mechanism of intrinsic variability in quasars, accretion disk structure, supermassive black holes, dark halos of galaxies (dust, collapsed dark matter, smoothly distributed dark matter,...)
No selection matches all, multiple values legal.
Object observed, Simbad resolvable identifier
[?date expr.]
Epoch at midpoint of observation
[?num. expr.]
Exposure time
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Air mass at center of observation
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Background in counts
[?num. expr.]
Estimate for seeing at observation time
Is the brightest object in the field saturated?
SDSS r'
SDSS i'
SDSS g'
Freeform name of the bandpass used
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The Liverpool robotic telescope frames have been obtained from different observational programmes conducted by the GLENDAMA team, and are in the public domain. Additional information (Liverpool Quasar Lens Monitoring project, data releases and other scientific outputs, etc) are available at the GLENDAMA Web Site.