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	Author	Pierre Auger Collaboration (Abreu, P. et al); Pastor, S.
	Title	Large-scale distribution of arrival directions of cosmic rays detected above 10^18 eV at the Pierre Auger Observatory			Type	Journal Article
	Year	2012	Publication	Astrophysical Journal Supplement Series	Abbreviated Journal	Astrophys. J. Suppl. Ser.
	Volume	203	Issue	2	Pages	34 - 20pp
	Keywords	astroparticle physics; cosmic rays
	Abstract	A thorough search for large-scale anisotropies in the distribution of arrival directions of cosmic rays detected above 10(18) eV at the Pierre Auger Observatory is presented. This search is performed as a function of both declination and right ascension in several energy ranges above 10(18) eV, and reported in terms of dipolar and quadrupolar coefficients. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Assuming that any cosmic-ray anisotropy is dominated by dipole and quadrupole moments in this energy range, upper limits on their amplitudes are derived. These upper limits allow us to test the origin of cosmic rays above 10(18) eV from stationary Galactic sources densely distributed in the Galactic disk and predominantly emitting light particles in all directions.
	Address	[Abreu, P.; Andringa, S.; Assis, P.; Brogueira, P.; Cazon, L.; Conceicao, R.; Diogo, F.; Espadanal, J.; Goncalves, P.; Pimenta, M.; Santo, C. E.; Santos, E.; Tome, B.] Univ Tecn Lisboa, LIP, Lisbon, Portugal
	Corporate Author				Thesis
	Publisher	Iop Publishing Ltd	Place of Publication		Editor
	Language	English	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0067-0049	ISBN		Medium
	Area		Expedition		Conference
	Notes	WOS:000312100500018			Approved	no
	Is ISI	yes	International Collaboration	yes
	Call Number	IFIC @ pastor @			Serial	1272
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