Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory Pierre Auger Collaboration Bueno Villar, Antonio García Gámez, Diego Gascón Bravo, Alberto Lozano Bahílo, Julio Navarro, J. Navas Concha, Sergio Zamorano García, Bruno Cosmic rays Radio detection Analysis software Detector simulation The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AERA performs "radio-hybrid" measurements of air shower radio emission in coincidence with the surface particle detectors and fluorescence telescopes of the Pierre Auger Observatory, the radio analysis functionality had to be incorporated in the existing hybrid analysis solutions for fluoresence and surface detector data. This goal has been achieved in a natural way by extending the existing Auger Offline software framework with radio functionality. In this article, we lay out the design, highlights and features of the radio extension implemented in the Auger Offline framework. Its functionality has achieved a high degree of sophistication and offers advanced features such as vectorial reconstruction of the electric field, advanced signal processing algorithms, a transparent and efficient handling of FFTs, a very detailed simulation of detector effects, and the read-in of multiple data formats including data from various radio simulation codes. The source code of this radio functionality can be made available to interested parties on request. 2013-11-11T07:26:04Z 2013-11-11T07:26:04Z 2011 info:eu-repo/semantics/preprint Pierre Auger Collaboration. Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 635(1): 92-102 (2011). [http://hdl.handle.net/10481/29087] 0168-9002 doi: 10.1016/j.nima.2011.01.049 arXiv:1101.4473v2 http://hdl.handle.net/10481/29087 eng info:eu-repo/grantAgreement/EC/FP7/220240 http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Elsevier