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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Using spherical wavelets to search for magnetically-induced alignment in the arrival directions of ultra-high energy cosmic rays

Full text
Author(s):
Zimbres, M. [1] ; Batista, R. Alves [2] ; Kemp, E. [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg - Germany
Total Affiliations: 2
Document type: Journal article
Source: Astroparticle Physics; v. 54, p. 54-60, FEB 2014.
Web of Science Citations: 5
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. (AU)

FAPESP's process: 10/04743-0 - Use of multiplets to the study of the galactic magnetic field
Grantee:Rafael Alves Batista
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 08/04259-0 - High energy cosmic rays
Grantee:Luiz Vitor de Souza Filho
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 10/07359-6 - Study of cosmic rays of highest energies with the Pierre Auger Observatory
Grantee:Carola Dobrigkeit Chinellato
Support Opportunities: Research Projects - Thematic Grants