Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 17: Gamma Astronomy 1

T 17.5: Vortrag

Montag, 21. März 2022, 17:20–17:35, T-H30

Background Estimation: Towards an Analysis of MAGIC Data Using Gammapy — •Simone Mender and Lena Linhoff for the MAGIC collaboration — Astroparticle Physics WG Elsässer, TU Dortmund University, Germany

The Python package Gammapy is mainly developed for the high-level analysis of gamma-ray data of the future Cherenkov Telescope Array. As it can also be used to analyze data from existing imaging air Cherenkov telescopes, it is reasonable to perform the high-level analysis of MAGIC data with Gammapy and compare the results with existing analyses. Gammapy requires event-based data combined with the corresponding instrument response functions. In order to process these so-called DL3 data for MAGIC, the new database-based framework AutoMAGIC is developed. With AutoMAGIC it is possible to create DL3 data in an automated and reproducible way.

So far, the MAGIC DL3 data does not include background models, which are needed for the creation of skymaps. In this talk, the dependence of the background on parameters like the azimuth and zenith angle of the pointing position will be presented. Using the exclusion region method, background models are built from DL3 data. Using these background models, the first preliminary skymaps of MAGIC data created with Gammapy will be shown.