7-10 June 2016
Groningen, Netherlands
Europe/Amsterdam timezone

The influence of the atmospheric refractive index on radio measurements of extensive air showers

9 Jun 2016, 10:10
Groningen, Netherlands

Groningen, Netherlands

Hampshire Plaza Hotel


Arthur Corstanje (Radboud University Nijmegen)


Measurements of radio emission from extensive air showers, together with air shower simulations, have allowed to infer the height of maximum emission ($X_{\rm max}$) for individual air showers to a precision of 18 g/cm$^2$, important for composition studies.
In this procedure, one of the major systematic uncertainties arises from variations of the refractive index in the atmosphere. The refractive index $n$ varies with temperature and humidity, and the variations can make on the order of 10 % difference in ($n$-1).
Using CoREAS simulations, we have evaluated the systematic error arising from the uncertainty in the refractive index.
Also, we give an interpretation in terms of a simple, physical model.

Primary author

Arthur Corstanje (Radboud University Nijmegen)


Dr Anna Nelles (University of California Irvine) Antonio Bonardi (IMAPP - Radboud University Nijmegen) Gia Trinh (KVI-CART, University of Groningen) Heino Falcke (Radboud University Nijmegen/ASTRON/MPIfR Bonn) Mr J.E. Enriquez (Radboud University Nijmegen) Jörg Hörandel (Ru Nijmegen/Nikhef) Jörg Paul Rachen (IMAPP / Radboud University Nijmegen) Katie Mulrey (Vrije Universiteit Brussel) Laura Rossetto (Radboud University Nijmegen) Olaf Scholten (KVI-CART, Univ. of Groningen) Pim Schellart (R) Pragati Mitra (Vrije Universiteit Brussel) Sander ter Veen (ASTRON) Satyendra Thoudam (Radboud University) Stijn Buitink (Vrije Universiteit Brussel (VUB)) Dr Tobias Winchen (Vrije Universiteit Brussel)

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