Speaker
Description
The First G-APD Cherenkov Telescope (FACT) is an imaging air Cherenkov
telescope observing in the very high energy gamma-ray regime since
October 2011. Thanks to its silicon-based photosensors and robotic
operation, it has a stable performance and a maximized duty cycle.
Therefore, it is ideally suited for long-term monitoring. Focussing on
regular observations of a small selection of bright TeV blazars results
in an unbiased and dense light curves.
In over six years of monitoring, a total of more than 11000 hours of
physics data have been collected. Thanks to this extensive monitoring
program, a target-of-opportunity program with X-ray satellites such as
INTEGRAL, Swift, XMM-Newton and ASTROSAT have been set up. Alerts based
on an automatic quick-look analysis are sent to the astronomical and
multi-messenger community triggering multi-wavelength observations.
The presentation will summarize the FACT monitoring program and discuss
results from various multi-wavelength studies.
