Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 61: Kosmische Strahlung III
T 61.2: Gruppenbericht
Mittwoch, 27. März 2019, 16:20–16:40, S13
The Pierre Auger Observatory - Recent Results and Perspectives — •Thomas Bretz — RWTH Aachen, III. Physikalisches Institut A, Germany
The Pierre Auger Observatory covering an area of 3000 km2 in Argentina is the world largest surface detector for the observation of extensive air-showers. It comprises 1660 individual water-Cherenkov detectors and is complemented by 27 telescopes recording fluorescence light emitted in the atmosphere.
Sensitive to energies >300 PeV at the ankle and cut-off region, significant discoveries to today’s knowledge about ultra-high energy cosmic-rays were made: a precise measurement of the spectrum, the measurement of the chemical composition, results on fundamental shower physics, and the detection of a large-scale anisotropy above 4 EeV. Upper limits have been provided for the contribution from gamma-rays, the flux from the direction of the first gravitational wave events, the search for magnetic monopols and the search for EeV neutrinos.
Exciting future discovery potential on the hunt for the origin of cosmic rays lays in the observed evidence for a correlation between the recorded arrival direction above 40 EeV with starburst galaxies examined by Fermi-LAT.
With the successfull radio detection for extended air showers and the applicability of SiPMs in scintillator detectors, important technological development have been made. With AugerPrime, the on-going upgrade of the detector, a new era in the sensitivity for ultra-high energy cosmic-rays will start soon.