Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 762, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/2041-8205/762/1/L13
Keywords
astroparticle physics; cosmic rays
Categories
Funding
- Comision Nacional de Energia Atomica
- Fundacion Antorchas
- Gobierno De La Provincia de Mendoza
- Municipalidad de Malargue
- NDM Holdings
- Valle Las Lenas
- Australian Research Council
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Financiadora de Estudos e Projetos (FINEP)
- Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- Ministerio de Ciencia e Tecnologia (MCT), Brazil
- AVCR [AV0Z10100502, AV0Z10100522]
- GAAV [KJB100100904]
- MSMT-CR [LA08016, LG11044, MEB111003, MSM0021620859, LA08015]
- TACR, Czech Republic [TA01010517]
- Centre de Calcul IN2P3/CNRS
- Centre National de la Recherche Scientifique (CNRS)
- Conseil Regional Ile-de-France
- Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS)
- Departement Sciences de l'Univers (SDU-INSU/CNRS), France
- Bundesministerium fur Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Finanzministerium Baden-Wurttemberg
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
- Ministerium fur Wissenschaft und Forschung
- Nordrhein-Westfalen
- Ministerium fur Wissenschaft
- Forschung und Kunst
- Baden-Wurttemberg, Germany
- Istituto Nazionale di Fisica Nucleare (INFN)
- Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy
- Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico
- Ministerie van Onderwijs, Cultuur en Wetenschap
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
- Ministry of Science and Higher Education, Poland [N N202 200239, N N202 207238]
- Portuguese national funds
- FEDER funds within COMPETE - Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia, Portugal
- Romanian Authority for Scientific Research, UEFICDI, Romania [Ctr.Nr.1/ASPERA2 ERA-NET]
- Ministry for Higher Education, Science, and Technology
- Slovenian Research Agency, Slovenia
- Comunidad de Madrid
- FEDER funds
- Ministerio de Ciencia e Innovacion and Consolider-Ingenio (CPAN), Xunta de Galicia, Spain
- Science and Technology Facilities Council, United Kingdom
- Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300]
- National Science Foundation [0450696]
- Grainger Foundation USA
- NAFOSTED, Vietnam
- Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program [PIRSES-2009-GA-246806]
- UNESCO
- Direct For Mathematical & Physical Scien
- Division Of Physics [0855623, 1207605, 1068210, 1068696] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1068658, 1053663, 1205845, 1212538] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/J001422/1, ST/J000507/1] Funding Source: researchfish
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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 reported. For the first time, these large-scale anisotropy searches are performed as a function of both the right ascension and the declination and expressed in terms of dipole and quadrupole moments. Within the systematic uncertainties, no significant deviation from isotropy is revealed. Upper limits on dipole and quadrupole amplitudes are derived under the hypothesis that any cosmic ray anisotropy is dominated by such moments in this energy range. These upper limits provide constraints on the production of cosmic rays above 10(18) eV, since they allow us to challenge an origin from stationary galactic sources densely distributed in the galactic disk and emitting predominantly light particles in all directions.
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