Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 17: Gamma Astronomy 1

T 17.7: Vortrag

Montag, 21. März 2022, 17:50–18:05, T-H30

Characterization of the performance of the MAGIC LIDAR — •Felix Schmuckermaier for the MAGIC collaboration — Max-Planck-Institut für Physik — TU München

The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes are a system of two Imaging Atmospheric Cherenkov Telescopes (IACTs). IACTs make calorimetric use of the Earth's atmosphere, which allows them to reach large effective areas, but also makes them strongly dependent on the quality of the atmosphere at the time of the observations. Suboptimal conditions can then lead to a wrong reconstruction of the gamma-ray data. In order to mitigate this problem, the MPP group built and has been operating a single wavelength elastic LIDAR (LIght Detection And Ranging) system to perform real time ranged-resolved measurements of the atmospheric transmission. This information is then used to quantify the quality of the telescope data, as well as to correct the data taken under suboptimal atmospheric conditions. In this talk, I will present the first detailed characterization of the correction capabilities of the LIDAR system. The results describe the impact of the LIDAR corrections for a variety of atmospheric and observational conditions, and therefore contribute to a better understanding of the telescope's performance and related systematic uncertainties.