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T: Fachverband Teilchenphysik

T 88: Gamma Astronomy IV

T 88.6: Vortrag

Mittwoch, 22. März 2023, 18:45–19:00, POT/0151

ctapipe -- Prototype Open Event Reconstruction Pipeline for the Cherenkov Telescope Array — •Maximilian Linhoff, Lukas Nickel, and Noah Biederbeck for the CTA collaboration — Astroparticle Physics, TU Dortmund University, Germany

The Cherenkov Telescope Array (CTA) is the next-generation ground-based, very high energy gamma-ray observatory currently under construction. It will improve over the current generation of imaging atmospheric Cherenkov telescopes (IACTs) by a factor of five to ten in sensitivity and it will be able to observe the whole sky from its two sites: La Palma, Spain, and Paranal, Chile.

CTA will also be the first open ground-based gamma-ray observatory. Accordingly, the data analysis pipeline is developed as open-source software. The event reconstruction pipeline accepts raw data from the telescopes and processes it to produce suitable input for the high-level science tools. Its primary tasks include reconstructing the physical properties of each recorded shower and providing the corresponding instrument response functions.

ctapipe is a python framework to facilitate calibration of the raw data, image extraction, image parameterization and event reconstruction. Though the current focus has been the analysis of simulated data, the software has also been successfully applied to the data obtained with the first CTA prototype telescopes, such as Large-Sized Telescope (LST-1). A plugin system also allows processing of comparable data from other IACT facilities. Recent updates, new features and the planned roadmap towards a 1.0 release will be discussed.