Radio detection of cosmic ray air showers with lopes

Abstract

Cosmic ray air showers are high energetic particles coming from the Universe toward the Earth every second. It is well known that they generate electromagnetic waves in the Earth atmosphere detectable on the ground. LOPES is an interferometric array of simple dipole radio 2 Radio detection of cosmic ray air showers with LOPES 309 antennas designed to measure radio signals initiated by cosmic air showers. It is working in coincidence with the particle detector array KASCADE-Grande at Karlsruhe Institute of Technology (KIT), campus North, from where receives the well-reconstructed shower observables. Determination of the emission mechanism is an important issue for LOPES, and here polarization measurements can play an important role. For first hints towards the verification of the radio emission mechanism, a comparison between measured data and an analytical approach is elaborated.