Bonn 2020 – scientific programme

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T: Fachverband Teilchenphysik

T 35: Gamma astronomy I

T 35.4: Talk

Tuesday, March 31, 2020, 17:45–18:00, H-HS XVII

Analysis of Coincident MAGIC - FACT Events — •Noah Biederbeck and Maximilian Nöthe for the FACT collaboration — Experimentelle Physik Vb, Technische Universität Dortmund, Otto-Hahn-Str. 4a, 44227 Dortmund

MAGIC is a system of two 17m-diameter Imaging Air Cherenkov telescopes at the Roque de los Muchachos observatory on La Palma, operating as stereo system since 2009. FACT, a 4m telescope, is operating in close vicinity since October 2011.

The two projects regularly observe the same sources at the same time. Although there is no common hardware trigger, it is possible to identify events recorded by both experiments. These coincident events get processed by the respective standard analyses to compare image features and reconstructed event properties.

This three-telescope system of unlike siblings is similar to the situation with the upcoming Cherenkov Telescope Array (CTA), where also telescopes of very different sizes will operate together. CTApipe, the low-level analysis framework currently under development for CTA, is used to do a stereoscopic three-telescope reconstruction of the origin of the particles.