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A search for point sources of EeV neutrons

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dc.contributor.authorArganda, E.
dc.contributor.authorArqueros Martínez, Fernando
dc.contributor.authorBlanco Ramos, Francisco
dc.contributor.authorGarcía Pinto, Diego
dc.contributor.authorMinaya Flores, Ignacio Andrés
dc.contributor.authorOrtiz Ramis, Montserrat
dc.contributor.authorRosado Vélez, Jaime
dc.contributor.authorVázquez Peñas, José Ramón
dc.date.accessioned2023-06-20T03:57:19Z
dc.date.available2023-06-20T03:57:19Z
dc.date.issued2012-12-01
dc.description© 2012. The American Astronomical Society. Autoría conjunta: Pierre Auger Collaboration. Artículo firmado por mas de 400 autores. We are very grateful to the following agencies and organizations for financial support: Comision Nacional de Energia Atomica, Fundacion Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings and Valle Las Lenas, in gratitude for their continuing cooperation over land access, Argentina; the 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 and AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LG11044, LC527, 1M06002, MSM0021620859 and RCPTM-CZ. 1.05/2.1.00/03.0058, Czech Republic; 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), The Netherlands; Ministry of Science and Higher Education, grant Nos. N N202 200239 and N N202 207238, Poland; Fundacao para a Ciencia e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejeria de Educacion de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovacion and Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, grant No. 0450696, The Grainger Foundation, USA; ALFA-EC/HELEN, European Union 6th Framework Program, grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, grant No. PIEF-GA-2008-220240, and UNESCO.
dc.description.abstractA thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from -90 degrees to +15 degrees in declination using four different energy ranges above 1 EeV (10(18) eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. FP7
dc.description.sponsorshipAVCR, Czech Republic
dc.description.sponsorshipGAAV, Czech Republic
dc.description.sponsorshipMSMT-CR, Czech Republic
dc.description.sponsorshipRCPTM, Czech Republic
dc.description.sponsorshipCentre de Calcul IN2P3/CNRS, France
dc.description.sponsorshipCentre National de la Recherche Scientifique (CNRS), France
dc.description.sponsorshipConseil Regional Ile-de-France, France
dc.description.sponsorshipDepartement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), France
dc.description.sponsorshipDepartement Sciences de l'Univers (SDU-INSU/CNRS), France
dc.description.sponsorshipBundesministerium fur Bildung und Forschung (BMBF), Germany
dc.description.sponsorshipDeutsche Forschungsgemeinschaft (DFG), Germany
dc.description.sponsorshipFinanzministerium Baden-Wurttemberg, Germany
dc.description.sponsorshipHelmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany
dc.description.sponsorshipMinisterium fur Wissenschaft und Forschung, Nordrhein-Westfalen, Germany
dc.description.sponsorshipMinisterium fur Wissenschaft, Forschung, Kunst Baden-Wurttemberg, Germany
dc.description.sponsorshipIstituto Nazionale di Fisica Nucleare (INFN)
dc.description.sponsorshipMinistero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy
dc.description.sponsorshipMinisterie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
dc.description.sponsorshipStichting voor Fundamenteel Onderzoek der Materie (FOM), The Netherlands
dc.description.sponsorshipMinistry of Science and Higher Education, Poland
dc.description.sponsorshipFundacao para a Ciencia e a Tecnologia, Portugal
dc.description.sponsorshipMinistry for Higher Education, Science, and Technology, Slovenia
dc.description.sponsorshipSlovenian Research Agency, Slovenia
dc.description.sponsorshipComunidad de Madrid, Spain
dc.description.sponsorshipConsejeria de Educacion de la Comunidad de Castilla La Mancha, Spain
dc.description.sponsorshipFEDER funds, Spain
dc.description.sponsorshipMinisterio de Ciencia e Innovación and Consolider-Ingenio 2010 (CPAN), Spain
dc.description.sponsorshipXunta de Galicia, Spain
dc.description.sponsorshipALFA-EC/HELEN
dc.description.sponsorshipScience and Technology Facilities Council, United Kingdom
dc.description.sponsorshipEuropean Union 6th Framework Program
dc.description.sponsorshipUNESCO
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/32722
dc.identifier.doi10.1088/0004-637X/760/2/148
dc.identifier.issn0004-637X
dc.identifier.officialurlhttp://dx.doi.org/10.1088/0004-637X/760/2/148
dc.identifier.relatedurlhttp://iopscience.iop.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/44720
dc.issue.number2
dc.journal.titleAstrophysical journal
dc.language.isoeng
dc.publisherIOP publishing ltd
dc.relation.projectIDPIEF-GA-2008 (220240)
dc.relation.projectIDAV0Z10100502
dc.relation.projectIDAV0Z10100522
dc.relation.projectIDKJB100100904
dc.relation.projectIDLA08016
dc.relation.projectIDLG11044
dc.relation.projectIDLC527
dc.relation.projectID1M06002
dc.relation.projectID1.05/2.1.00/ 03.0058
dc.relation.projectIDMSM0021620859
dc.relation.projectIDN N202 200239
dc.relation.projectIDN N202 207238
dc.relation.projectIDMEIF-CT-2005-025057
dc.rights.accessRightsopen access
dc.subject.cdu539.1
dc.subject.keywordMassive black-hole
dc.subject.keywordGalactic-center
dc.subject.keywordCosmic-rays
dc.subject.keywordGamma-rays
dc.subject.keywordAnisotropy
dc.subject.keywordAstronomy
dc.subject.ucmFísica nuclear
dc.subject.unesco2207 Física Atómica y Nuclear
dc.titleA search for point sources of EeV neutrons
dc.typejournal article
dc.volume.number760
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