Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 54: Gammaastronomie II
T 54.3: Vortrag
Mittwoch, 21. März 2018, 17:05–17:20, Philo-HS7
FACT - Sub-Threshold Data for Correlation Studies in AMON — •Daniela Dorner1 for the FACT collaboration and Azadeh Keivani2 for the AMON Team — 1Universität Würzburg, Germany — 2Pennsylvania State University, USA
In more than six years, the First G-APD Cherenkov Telescope (FACT) has collected an unprecedented data sample by continuously monitoring a small sample of blazars. Thanks to the stable performance of the system, the data taking efficiency could be maximized achieving up to 2400 hours of physics data per year. Blazars like Mrk 421, Mrk 501 and 1ES 1959+650 have been showing exceptional flaring activities. A fast quick look analysis enables the collaboration to alert the community within minutes in case of an interesting event.
To enhance the combined sensitivity of collaborating observatories to astrophysical transients, the Astrophysical Multimessenger Observatory Network (AMON) is searching for significant coincidences in sub-threshold data provided by the individual observatories. FACT joined AMON both as triggering and follow-up observatory.
Trigger criteria for the FACT sub-threshold events have been defined, and the data are sent to AMON in real-time. These alerts will be analyzed in coincidence with sub-threshold triggers of other AMON partner observatories. In case a significant coincidence is found, an AMON alert will be issued, enabling rapid multi-wavelength follow-up observations. Such multi-messenger searches will enable us to address many important questions in high energy astrophysics, including the emission and acceleration mechanisms in high energy sources.