https://doi.org/10.1051/epjconf/201921603011
A new parametrization for the radio emission of air showers applied to LOFAR data
1
IMAPP, Radboud University Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
2
Astrophysical Institute, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
3
Nikhef, Science Park Amsterdam, 1098 XG Amsterdam, The Netherlands
4
Netherlands Institute for Radio Astronomy (ASTRON), Postbus 2, 7990 AA Dwingeloo, The Netherlands
5
KVI-CART, University Groningen, P.O. Box 72, 9700 AB Groningen
6
Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA
7
Interuniversity Institute for High-Energy, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels
Belgium
8
Department of Physics and Electrical Engineering, Lineeuniversitetet, 35195 Vaxjo
Sweden
9
DESY, platanenallee 6, 15738
Zeuthen
Germany
10
Humboldt-Universitat zu Berlin, Institut fur Physik, Newtonstr. 15, 12489
Berlin, Germany
★ e-mail: ilse@plaisier.nu
Published online: 24 September 2019
The energy and mass composition of cosmic rays influence how the energy density of the radio emission of air showers is distributed on the ground. A precise description of the radio profiles can, therefore, be used to reconstruct the properties of the primary cosmic rays. Here, such a description is presented, using a separate treatment of the two radio-emission mechanisms, the geomagnetic effect and the charge excess effect. The model is parametrized as a function that depends only on the shower parameters, allowing for a precise reconstruction of the properties of the primary cosmic rays. This model is applied to cosmic-ray events measured with LOFAR and it is capable of reconstructing the properties of air showers correctly.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
