29 juin 2010 à 2 juillet 2010
Nantes
Fuseau horaire Europe/Paris

Radio Detection of Cosmic-Ray-Induced Air Showers at the Pierre Auger Observatory

1 juil. 2010, 11:00
30m
Amphithéatre Pasteur (Nantes)

Amphithéatre Pasteur

Nantes

Université de Nantes IUP Chimie Biologie

Orateur

Stefan Fliescher (RWTH Aachen University)

Description

AERA --- the Auger Engineering Radio Array --- is currently being set up at the southern site of the Pierre Auger Observatory. AERA will explore the potential of the radio detection technique to cosmic ray induced air showers with respect to the next generation of large-scale surface detectors. As AERA is co-located with the low energy enhancements of the Pierre Auger Observatory, the observation of air showers in coincidence with the Auger surface and fluoresence detectors will allow us to study the radio emission processes in detail and to calibrate the radio signal. Finally, the combined reconstruction of shower parameters with three independent detectors promises new insights into the nature of cosmic rays in the transition region from $10^{17}$ to $10^{19}$ eV. Besides the detection of coherent radiation in the MHz frequency range, the setups AMBER [1] and MIDAS [2] prepare to check the possibility to detect air showers due the emission of molecular bremsstrahlung in the GHz range at the Auger site. We present the status of the radio detection setups and discuss their physics potential as well as experimental challenges. We will focus on the first installatuion phase of AERA which is the startup to the construction of a 20 km$^{2}$ radio array. \noindent [1] Air-shower Mircrowave Bremsstrahlung Experimental Radiometer\\ \noindent [2] MIcrowave Detection of Air Showers

Auteur principal

Stefan Fliescher (RWTH Aachen University)

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