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Type: Artigo de periódico
Title: Using spherical wavelets to search for magnetically-induced alignment in the arrival directions of ultra-high energy cosmic rays
Author: Zimbres, M
Batista, RA
Kemp, E
Abstract: Due to the action of the intervening cosmic magnetic fields, ultra-high energy cosmic rays (UHECRs) can be deflected in such a way as to create clustered energy-ordered filamentary structures in the arrival direction of these particles, the so-called multiplets. In this work we propose a new method based on the spherical wavelet transform to identify multiplets in sky maps containing arrival directions of UHECRs. The method is illustrated in simulations with a multiplet embedded in isotropic backgrounds with different numbers of events. The efficiency of the algorithm is assessed through the calculation of Type I and II errors. (C) 2013 Elsevier B.V. All rights reserved.
Subject: Spherical wavelets
Ultra-high energy cosmic rays
Cosmic magnetic fields
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.astropartphys.2013.11.001
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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