SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 140: Gamma Astronomy VI

T 140.6: Vortrag

Donnerstag, 23. März 2023, 18:45–19:00, POT/0151

Towards an automatic mode of operation of the MAM subsystem of MAGIC — •Angela Bautista for the MAGIC collaboration — Max Planck Institute for Physics, Munich, Germany

The MAGIC telescope system is sensitive to gamma rays in the very high energy range 20 GeV-100 TeV. Cherenkov light produced in extensive air showers is collected and used to estimate the primary gamma-ray energy. The atmosphere absorbs part of the Cherenkov light and the MAGIC LIDAR system is used to correct observations with zenith angles up to 60°. MAGIC observes sources above 60° using the Very Large Zenith Angle (VLZA) observation technique. The increased collection area during VLZA observations enables the study of PeVatron candidates with steep spectra extending to 100 TeV and beyond. At such large zenith angles, the column density of air exceeds the range covered by the LIDAR and a different atmospheric calibration technique is needed. The MAGIC Atmospheric Minion (MAM) was installed at the MAGIC site to correct for the atmospheric effects during VLZA observations. The task of MAM is to measure the atmospheric transmission in real-time either by using aperture photometry or spectroscopy of stars within the same sky region as the gamma-ray source of interest. Currently, a manual procedure for photometric calibration is already in place. This talk presents recent progress along with the next steps to advance towards an automatic mode of operation of the MAM subsystem.