Theory and simulations of air shower radio emission

Abstract

A precise understanding of the radio emission from extensive air showers is of fundamental importance for the design of cosmic ray radio detectors as well as the analysis and interpretation of their data. In recent years, tremendous progress has been made in the understanding of the emission physics both in macroscopic and microscopic frameworks. A consistent picture has emerged: the emission stems mainly from time-varying transverse currents and a time-varying charge excess; in addition, Cherenkov-like compression of the emission due to the refractive index gradient in the atmosphere can lead to time-compression of the emitted pulses and thus high-frequency contributions in the signal. In this article, I discuss the evolution of the modelling in recent years, present the emission physics as it is understood today, and conclude with a description and comparison of the models currently being actively developed.

Proceedings of the ARENA2012 conference (Erlangen, Germany), to be published in AIP Conference Proceedings

References in corpus (1)

• Radio emission from Air Showers. Comparison of theoretical approaches

Cited by in corpus (16)

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• The shape of the radio wavefront of extensive air showers as measured with LOFAR
• Radio measurements of the energy and the depth of the shower maximum of cosmic-ray air showers by Tunka-Rex
• The wavefront of the radio signal emitted by cosmic ray air showers
• Radio pulses from ultra-high energy atmospheric showers as the superposition of Askaryan and geomagnetic mechanisms
• The renaissance of radio detection of cosmic rays
• Influence of Atmospheric Electric Fields on the Radio Emission from Extensive Air Showers
• Comparing LOPES measurements of air-shower radio emission with REAS 3.11 and CoREAS simulations
• GRANDlib: A simulation pipeline for the Giant Radio Array for Neutrino Detection (GRAND)
• Detecting Radio Emission from Air Showers with LOFAR
• Overview of MHz air shower radio experiments and results
• Uncertainties in the Estimation of Air Shower Observables from Monte Carlo Simulation of Radio Emission