We request B+V CCD observations of 12 active galactic nuclei. In each case, the target is the star-like nucleus of the galaxy.

Observations are requested once per night from 1st August 2011 to October 2012 in B-V filters, with priority given to B band. These observations will help us to track the continuum variations of each object. Our observations are follow up to the Spitzer space telescope, and will allow us to study the structure of the inner dust torus that surronds AGNs. Unfortunately, unfiltered CCD observations will not be useful to the campaign due to the multiple wavelength-dependent variations we are seeking.

Coordinates and finding charts are provided below. The variability in these targets cannot be predicted in advance, but similar targets have been seen to vary by up to 0.5 or even 1.0 mag over a few weeks. As such, the magnitude estimates below are currently that -- estimates. They will be updated as the campaign progresses to more accurately reflect the current magnitude of each object.

Quick aperture photometry lightcurves are also available. The lightcurves below represent the (unnormalized) flux ratio of the target to that of a single comparison star. A more accurate photometry will be available soon. The data are taken from exposures at the Liverpool Telescope and Faulkes Telescope North.

For direct questions please ask: pg25//at//st(minus)andrews(dot)ac(dot)uk