Bonn 2010 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 105: Kosmische Strahlung V

T 105.9: Vortrag

Freitag, 19. März 2010, 16:00–16:15, HG XII

Towards a Lateral Distribution Function Reconstruction of radio measurements in Offline with the Pierre Auger Observatory*. — •Pietro Oliva and Julian Rautenberg — Bergische Universität Wuppertal, Gaußstraße 20 42119 Wuppertal, Germany.

Cosmic ray induced air showers radiate appreciable power at radio frequencies via the geosynchrotron process. The Pierre Auger Observatory is constructing radio detection technique on large scales, the Auger Engineering Radio Array (AERA). For this purpose the Auger software-framework called Offline, is being enhanced to analyze and reconstruct radio data. Our target is to reconstruct the intensity of the measured radio emission versus the distance from the shower-axis, representing the lateral distribution, which needs to be reconstructed from the Auger-data collected at one of the test sites for radio detection, located in the western part of the observatory near the surface detector tank Olaia, where three poles forming an equilateral triangle with a baseline of 100 m constitutes our setup of dual-polarized log-periodic dipole antennas. Our analysis will focus on a comparison of different functional dependencies for the LDF, such as exponential and polynomial one. The final aim is to have an independent energy estimation, direction reconstruction and, if possible, composition of the primary particle which induced the shower, to compare and integrate with the Surface and Fluorescence Detector reconstructions.

*Gefördert durch die BMBF Verbundforschung Astroteilchenphysik.

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