11–15 Sept 2023
Europe/Rome timezone

Performance of the joint observations with LST-1 and MAGIC

11 Sept 2023, 14:45
15m
Room gamma

Room gamma

Gamma Ray Astronomy GRA: Gamma Ray Astronomy

Speaker

Alessio Berti (Max Planck Institute for Physics)

Description

The next generation ground-based instrument for very-high-energy gamma-ray observations will be the Cherenkov Telescope Array Observatory (CTAO). At one of the two planned sites, La Palma (Canary Islands, Spain), the first prototype of a Large-Sized Telescope, LST-1, is already operational and is currently under commissioning. The two MAGIC Cherenkov telescopes have been operating in stereoscopic mode since 2009 at the same site. The proximity of these three telescopes allows to observe the same gamma-ray events and to perform a joint analysis. This three-telescope system provides a better reconstruction of the events, both in terms of angular and energy resolution, as well as discrimination between showers initiated by gamma rays and cosmic rays. This results in an improvement of the sensitivity of over 60% and 40% compared to LST-1 or the two MAGIC telescopes operated separately, respectively. In this contribution, we will report on results from data taken on the Crab Nebula with the pipeline developed for the analysis of joint LST-1 and MAGIC observations, and show the improved performance evaluated using both real and simulated data.

Primary authors

Alessio Berti (Max Planck Institute for Physics) Ms Elisa Visentin (University of Torino) Ms Elli Jobst (Max Planck Institute for Physics) Federico Di Pierro (Istituto Nazionale di Fisica Nucleare) Julian Sitarek (University of Lodz) Yoshiki Ohtani (ICRR, University of Tokyo) Yusuke Suda (Hiroshima University)

Presentation materials