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Progress in air shower radio measurements: Detection of distant events

Institut für Kernphysik, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany; Institut für Prozessdatenverarbeitung und Elektronik, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany; ASTRON, 7990 AA Dwingeloo, The Netherlands; National Institute of Physics and Nuclear Engineering, 7690 Bucharest, Romania; Dipartimento di Fisica Generale dell’ Universita, 10125 Torino, Italy; Max-Planck-Institut für Radioastronomie, 53121 Bonn, Germany; Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76021 Karlsruhe, Germany; Dpt. Astrophysics, Radboud University, 6525 ED Nijmegen, The Netherlands; Fachbereich Physik, Universität Siegen, 57072 Siegen, Germany; Istituto di Fisica dello Spazio Interplanetario, INAF, 10133 Torino, Italy; Fachbereich C-Physik, Universität Wuppertal, 42097 Wuppertal, Germany; Soltan Institute for Nuclear Studies, 90950 Lodz, Poland
Astroparticle Physics 01/2006; DOI: 10.1016/j.astropartphys.2006.07.003
Source: arXiv

ABSTRACT Data taken during half a year of operation of 10 LOPES antennas (LOPES-10), triggered by EAS observed with KASCADE-Grande have been analysed. We report about the analysis of correlations of radio signals measured by LOPES-10 with extensive air shower events reconstructed by KASCADE-Grande, including shower cores at large distances. The efficiency of detecting radio signals induced by air showers up to distances of 700 m from the shower axis has been investigated. The results are discussed with special emphasis on the effects of the reconstruction accuracy for shower core and arrival direction on the coherence of the measured radio signal. In addition, the correlations of the radio pulse amplitude with the primary cosmic ray energy and with the lateral distance from the shower core are studied.

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Jun 6, 2014