LARGE-SCALE DISTRIBUTION OF ARRIVAL DIRECTIONS OF COSMIC RAYS DETECTED ABOVE 10(18) eV AT THE PIERRE AUGER OBSERVATORY
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
---|---|
Data(s) |
06/11/2013
06/11/2013
2012
|
Resumo |
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. Comision Nacional de Energia Atomica Comision Nacional de Energia Atomica Fundacion Antorchas Fundacion Antorchas Gobierno De La Provincia de Mendoza Gobierno De La Provincia de Mendoza Municipalidad de Malargue Municipalidad de Malargue NDM Holdings and Valle Las Lenas NDM Holdings and Valle Las Lenas Australian Research Council Australian Research Council Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil Financiadora de Estudos e Projetos (FINEP), Brazil Financiadora de Estudos e Projetos (FINEP), Brazil Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Brazil Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Brazil Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil Ministerio de Ciencia e Tecnologia (MCT), Brazil Ministerio de Ciencia e Tecnologia (MCT), Brazil AVCR , Czech Republic [AV0Z10100502, AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LG11044, MEB111003, MSM0021620859, LA08015, TA01010517] AVCR, Czech Republic Centre de Calcul IN2P3/CNRS, France Centre de Calcul IN2P3/CNRS, France Centre National de la Recherche Scientifique (CNRS), France Centre National de la Recherche Scientifique (CNRS), France Conseil Regional IledeFrance Conseil Regional Ile-de-France, France Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), France Departement Physique Nucleaire et Corpusculaire (PNCIN2P3/CNRS), France Departement Sciences de l'Univers (SDU-INSU/CNRS), France Departement Sciences de lUnivers (SDUINSU/CNRS), France Bundesministerium fur Bildung und Forschung (BMBF), Germany Bundesministerium fur Bildung und Forschung (BMBF), Germany Deutsche Forschungsgemeinschaft (DFG), Germany Deutsche Forschungsgemeinschaft (DFG), Germany Finanzministerium Baden-Wurttemberg, Germany Finanzministerium BadenWurttemberg, Germany Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany HelmholtzGemeinschaft Deutscher Forschungszentren (HGF), Germany Ministerium fur Wissenschaft und Forschung, Nordrhein-Westfalen, Germany Ministerium fur Wissenschaft und Forschung, NordrheinWestfalen, Germany Ministerium fur Wissenschaft, Forschung und Kunst, BadenWurttemberg, Germany Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany Istituto Nazionale di Fisica Nucleare (INFN), Italy Istituto Nazionale di Fisica Nucleare (INFN), Italy Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy Ministero dellIstruzione, dellUniversita e della Ricerca (MIUR), Italy Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico Consejo Nacional de Ciencia y Tecnolog'ia (CONACYT), Mexico Ministerie van Onderwijs, Cultuur en Wetenschap , Netherland Ministerie van Onderwijs, Cultuur en Wetenschap , Netherland Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherland Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherland Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherland Ministry of Science and Higher Education, Poland Ministry of Science and Higher Education, Poland [N N202 200239, N N202 207238] Portuguese national funds Portuguese national funds FEDER funds within COMPETE-Programa Operacional Factores de Competitividade through Funda,cao para a Ciencia e a Tecnologia, Portugal FEDER funds within COMPETE Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia, Portugal Romanian Authority for Scientific Reseach Romanian Authority for Scientific Reseach UEFICDI, Romania [1/ASPERA2 ERA-NET] UEFICDI, Romania Ministry for Higher Education, Science, and Technology, Slovenia Ministry for Higher Education, Science, and Technology, Slovenia Slovenian Research Agency, Slovenia Slovenian Research Agency, Slovenia Comunidad de Madrid, Spain Comunidad de Madrid, Spain FEDER funds, Spain FEDER funds, Spain Ministerio de Ciencia e Innovacion and ConsoliderIngenio (CPAN), Spain Ministerio de Ciencia e Innovacion and Consolider-Ingenio (CPAN), Spain Xunta de Galicia, Spain Xunta de Galicia, Spain Science and Technology Facilities Council, United Kingdom Science and Technology Facilities Council, United Kingdom Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300] Department of Energy National Science Foundation National Science Foundation [0450696] Grainger Foundation USA Grainger Foundation USA NAFOSTED, Vietnam NAFOSTED, Vietnam Marie CurieIRSES/EPLANET Marie Curie-IRSES/EPLANET European Particle Physics Latin American Network European Particle Physics Latin American Network European Union [PIRSES-2009-GA-246806] European Union UNESCO UNESCO |
Identificador |
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, BRISTOL, v. 203, n. 2, supl. 1, Part 6, pp. 1487-1494, DEC, 2012 0067-0049 http://www.producao.usp.br/handle/BDPI/42471 10.1088/0067-0049/203/2/34 |
Idioma(s) |
eng |
Publicador |
IOP PUBLISHING LTD BRISTOL |
Relação |
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES |
Direitos |
restrictedAccess Copyright IOP PUBLISHING LTD |
Palavras-Chave | #ASTROPARTICLE PHYSICS #COSMIC RAYS #GALACTIC MAGNETIC-FIELDS #EXTENSIVE AIR-SHOWERS #ENERGY-SPECTRUM #SURFACE DETECTOR #ANISOTROPY #ARRAY #ROTATION #ASTRONOMY & ASTROPHYSICS |
Tipo |
article original article publishedVersion |