July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Xmax reconstruction based on radio detection of air showers

Aug 1, 2015, 3:30 PM
1h
Amazon Foyer (World Forum)

Amazon Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 196
Poster contribution CR-EX Poster 2 CR

Speaker

Stijn Buitink (Vrije Universiteit Brussel (VUB))

Description

The radio emission from air showers is used to accurately reconstruct the depth of the shower maximum (Xmax). We present a method based on using the full two-dimensional radiation profile as observed on the ground. While the density of shower particles reaching the ground is usually described with a 1D lateral distribution function, the intensity of the radio pulse is a complex function of observer position with respect to the shower axis. The CoREAS code simulates these complicated patterns to very high precision. When the antenna density is sufficiently high, like for example in the LOFAR core, the 2D approach leads to a resolution on Xmax of 17 g/cm$^2$. This is the same level of accuracy that is achieved with fluorescence detection.
Registration number following "ICRC2015-I/" 780
Collaboration -- not specified --

Primary author

Stijn Buitink (Vrije Universiteit Brussel (VUB))

Co-authors

Anna Nelles (Radboud University Nijmegen) Arthur Corstanje (Radboud University Nijmegen) Gia Trinh (KVI-CART, University of Groningen) H. Falcke (Radboud University Nijmegen) J.E. Enriquez (Radboud University Nijmegen) J.P. Rachen (Radboud University Nijmegen) Jörg Hörandel (Ru Nijmegen/Nikhef) L. Rossetto (Radboud University Nijmegen) O. Scholten (Kernfysisch Versneller Instituut (KVI)) Pim Schellart (R) S. ter Veen (ASTRON) Satyendra Thoudam (Radboud University) T. Karskens (Radboud University Nijmegen) Tim Huege (KIT)

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