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Würzburg 2018 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 53: Kosmische Strahlung III

T 53.4: Vortrag

Mittwoch, 21. März 2018, 17:20–17:35, Philo-HS6

Recent developments from the Auger Engineering Radio Array (AERA) — •Ewa Marlen Holt for the Pierre Auger collaboration — Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie (KIT)

The Auger Engineering Radio Array (AERA) is designed to measure the radio emission of extensive air showers initiated by cosmic rays above an energy of 1017 eV. The experiment is located in Mendoza, Argentina, as an extension of the Pierre Auger Observatory and is operated in coincidence with the other detectors of the observatory. Its 153 autonomous radio antenna stations are distributed over an area of 17 km2 on a grid with a spacing ranging from 150 – 750 m. Each antenna station comprises two dipole antennas sensitive to frequencies of 30 – 80 MHz. Data taking started in 2011. Special emphasis is put on the detection of inclined air showers, which feature radio emission footprints extended over several square kilometers. The independent energy reconstruction from the radio emission has the potential to cross-check the absolute energy scale of the Pierre Auger Observatory. To reach this goal, a very precise calibration of the radio antennas has been performed. Different mass estimators are reconstructed from the radio emission such as the atmospheric depth of the shower maximum and the radio-muon ratio measured in combination with the muon detectors of the Observatory. In this talk an overview of the current status of the experiment and the latest scientific results is given.

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