A novel LIDAR-based Atmospheric Calibration Method for Improving the Data Analysis of MAGIC

Understand

A new method for analyzing the returns of the custom-made 'micro'-LIDAR system, which is operated along with the two MAGIC telescopes, allows to apply atmospheric corrections in the MAGIC data analysis chain.

• Such corrections make it possible to extend the effective observation time of MAGIC under adverse atmospheric conditions and reduce the systematic errors of energy and flux in the data analysis.
• LIDAR provides a range-resolved atmospheric backscatter profile from which the extinction of Cherenkov light from air shower events can be estimated.
• Knowledge of the extinction can allow to reconstruct the true image parameters, including energy and flux.