RT Journal Article
T1 A targeted search for point sources of eev neutrons
A1 Arqueros Martínez, Fernando
A1 Blanco Ramos, Francisco
A1 García Pinto, Diego
A1 Minaya Flores, Ignacio Andrés
A1 Ortiz Ramis, Montserrat
A1 Rosado Vélez, Jaime
A1 Vázquez Peñas, José Ramón
AB A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of the source. To avoid the statistical penalty for making many trials, classes of objects are tested in combinations as nine "target sets," in addition to the search for a neutron flux from the Galactic center or from the Galactic plane. Within a target set, each candidate source is weighted in proportion to its electromagnetic flux, its exposure to the Auger Observatory, and its flux attenuation factor due to neutron decay. These searches do not find evidence for a neutron flux from any class of candidate sources. Tabulated results give the combined p-value for each class, with and without the weights, and also the flux upper limit for the most significant candidate source within each class. These limits on fluxes of neutrons significantly constrain models of EeV proton emission from non-transient discrete sources in the Galaxy.
PB IOP Publishing
SN 2041-8205
YR 2014
FD 2014-06-02
LK https://hdl.handle.net/20.500.14352/34791
UL https://hdl.handle.net/20.500.14352/34791
LA eng
NO © IOP Publishing 2014.Autoría conjunta: Pierre Auger Collaboration. Artículo firmado por más 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), Sao Paulo Research Foundation (FAPESP) grant Nos. 2010/07359-6, 1999/05404-3, Ministerio de Ciencia e Tecnologia (MCT), Brazil; MSMT-CR LG13007, 7AMB14AR005, CZ.1.05/2.1.00/03.0058 and the Czech Science Foundation grant 14-17501S, 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 West-falen, Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Gran Sasso Center for Astroparticle Physics (CFA), CETEMPS Center of Excellence, 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; National Centre for Research and Development, grant Nos. ERA-NET-ASPERA/01/11 and ERA-NET-ASPERA/02/11, National Science Centre, Grant Nos. 2013/08/M/ST9/00322, 2013/08/M/ST9/00728, and 2013/10/M/ST9/00062, Poland; Portuguese national funds and FEDER funds within COMPETE-Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia, Portugal; Romanian Authority for Scientific Research ANCS, CNDI-UEFISCDI partnership projects nr. 20/2012 and nr. 194/2012, project nr. 1/ASPERA2/2012 ERA-NET, PN-II-RU-PD-2011-3-0145-17, and PN-II-RU-PD-2011-3-0062, the Minister of National Education, Programme for research-Space Technology and Advanced Research-STAR, project number 83/2013, Romania; Slovenian Research Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio de Educacion y Ciencia, Xunta de Galicia, Spain; The Leverhulme Foundation, Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract No. DE-AC02-07CH11359, DE-FR02-04ER41300, and DE-FG02-99ER41107, National Science Foundation, grant No. 0450696, The Grainger Foundation, USA; NAFOSTED, Vietnam; Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program, grant No. PIRSES-2009-GA-246806; and UNESCO.
NO Unión Europea. FP7
NO Czech Science Foundation
NO Centre de Calcul IN2P3/CNRS
NO Centre National de la Recherche Scientifique (CNRS)
NO Conseil Regional Ile-de-France, Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS)
NO Departement Sciences de l'Univers (SDU-INSU/CNRS)
NO Bundesministerium fur Bildung und Forschung (BMBF)
NO Deutsche Forschungsgemeinschaft (DFG)
NO Finanzministerium Baden-Wurttemberg
NO Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
NO Ministerium fur Wissenschaft und Forschung, Nordrhein West-falen
NO Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany
NO Istituto Nazionale di Fisica Nucleare (INFN)
NO Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR)
NO Gran Sasso Center for Astroparticle Physics (CFA)
NO CETEMPS Center of Excellence, Italy
NO Ministerie van Onderwijs, Cultuur en Wetenschap
NO Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
NO Stichting voor Fundamenteel Onderzoek der Materie (FOM)
NO The Netherlands; National Centre for Research and Development
NO National Science Centre
NO Portuguese national funds and FEDER funds within COMPETE-Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia, Portugal
NO Romanian Authority for Scientific Research ANCS, CNDI-UEFISCDI
NO Minister of National Education, Programme for research-Space Technology and Advanced Research-STAR,
NO Slovenian Research Agency
NO Comunidad de Madrid, FEDER funds
NO The Leverhulme Foundation, Science and Technology Facilities Council, United Kingdom
NO Marie Curie-IRSES/EPLANET
NO UNESCO.
NO Ministerio de Educacion y Ciencia, Spain
NO Xunta de Galicia, Spain
DS Docta Complutense
RD 4 abr 2025