Wuppertal 2015 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 27: Gammaastronomie II
T 27.3: Vortrag
Montag, 9. März 2015, 17:15–17:30, I.13.71 (HS 28)
FACT - Flare Alerts from Blazar Monitoring — •Daniela Dorner1 and Thomas Bretz2 for the FACT collaboration — 1Universität Würzburg, Deutschland — 2RWTH Aachen, Deutschland
One of the major goals of the First G-APD Cherenkov Telescope is the longterm monitoring of bright TeV blazars. For more than three years, FACT has observed the blazars Mrk 421 and Mrk 501 and a few other sources on a regular basis. To understand these highly variable objects, simultaneous data at different wavelengths are very useful. FACT is not only taking part in multi-wavelength campaigns, but also sending alerts to other instruments in case of enhanced flux, to study flares within the multi-wavelength frame. To send fast alerts, an automatic quick look analysis was set up on site. Once the data are written on disk, they are automatically processed, and the analysis results are published on a website where other observers can monitor the activity of the source in the very high energy band. In addition, alerts are sent in case the flux is higher than a certain predefined value. In 2014, more than five alerts have been sent. Results from three years of monitoring will be presented.