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Author
Pierre Auger Collaboration (Abreu, P. et al)
;
Pastor, S.
Title
Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory
Type
Journal Article
Year
2012
Publication
Astroparticle Physics
Abbreviated Journal
Astropart Phys.
Volume
35
Issue
6
Pages
354-361
Keywords
Ultra-high energy cosmic rays
;
Pierre auger observatory
;
Arrival directions
Abstract
We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or 'multiplets') which exhibit a correlation between arrival direction and the inverse of the energy. These signatures are expected from sets of events coming from the same source after having been deflected by intervening coherent magnetic fields. The observation of several events from the same source would open the possibility to accurately reconstruct the position of the source and also measure the integral of the component of the magnetic field orthogonal to the trajectory of the cosmic rays. We describe the largest multiplets found and compute the probability that they appeared by chance from an isotropic distribution. We find no statistically significant evidence for the presence of multiplets arising from magnetic deflections in the present data.
Address
[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Espadanal, J.; Goncalves, P.; Pimenta, M.; Santo, C. E.; Santos, E.; Tome, B.] Univ Tecn Lisbon, LIP, P-1100 Lisbon, Portugal, Email: auger_spokepersons@fnal.gov
Corporate Author
Thesis
Publisher
Elsevier Science Bv
Place of Publication
Editor
Language
English
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0927-6505
ISBN
Medium
Area
Expedition
Conference
Notes
WOS:000300760800008
Approved
no
Is ISI
yes
International Collaboration
yes
Call Number
IFIC @ pastor @
Serial
935
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