Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 13: Cosmic Rays I

T 13.7: Talk

Monday, March 15, 2021, 17:35–17:50, Tm

Measurement of laser tracks from the Aeolus satellite with the Pierre Auger Observatory — •Felix Knapp for the Pierre Auger collaboration — Karlsruher Institut für Technologie

The Pierre Auger Observatory is the world's largest experiment for the observation of ultrahigh-energy cosmic rays. These cosmic-ray particles initiate extensive air showers in the atmosphere that can be studied via the measurement of secondary particle densities with surface detectors or by the observation of the light induced by a shower along its trajectory through the atmosphere with fluorescence telescopes.

Aeolus is a satellite operated by the ESA. It uses an UV-laser pointed towards Earth to measure the flow of air in the atmosphere. This laser beam traverses the Pierre Auger Observatory several times throughout the year. Light that scatters off the laser beam produces tracks in the atmosphere that trigger the fluorescence telescopes of the observatory.

In this talk we will give an overview of the reconstructed laser shots and the possibility of utilizing them for a study of aerosols over the Observatory.