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Abstract:

Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from -85° to +20°, in an energy range from 10 17.3 eV to 10 18.5 eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of -2, is 0.06 eV cm -2 s -1 , and no celestial direction exceeds 0.25 eV cm -2 s -1 . These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy. © 2014. The American Astronomical Society. All rights reserved..

Registro:

Documento: Artículo
Título:A search for point sources of EeV photons
Autor:Multitudinario:485
Filiación:Universität Siegen, Siegen, Germany
Laboratório de Instrumentação e Física Experimental de Partículas, Instituto Superior Técnico (IST), Universidade de Lisboa (UL), Portugal
Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
University of Wisconsin, Madison, WI, United States
Fermilab, Batavia, IL, United States
Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
Universidade de São Paulo, Instituto de Física, São Paulo, SP, Brazil
Centro Atómico Bariloche, Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
New York University, New York, NY, United States
Ohio State University, Columbus, OH, United States
Universidad Tecnológica Nacional, Facultad Regional Buenos Aires, Buenos Aires, Argentina
Instituto de Tecnologías en Detección y Astropartí culas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
Universidad Nacional Autonoma de Mexico, D. F. Mexico, Mexico
Universidad de Santiago de Compostela, Spain
Universität Hamburg, Hamburg, Germany
Università di Napoli Federico II, Sezione INFN, Napoli, Italy
IMAPP, Radboud University Nijmegen, Netherlands
University of Wisconsin, Milwaukee, WI, United States
Department of Physics and Astronomy, Lehman College, City University of New York, New York, NY, United States
Universidad Complutense de Madrid, Madrid, Spain
Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, France
Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina
University Politehnica of Bucharest, Romania
University of Adelaide, S. A., Adelaide, Australia
Karlsruhe Institute of Technology (Campus South), Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, Germany
Bergische Universität Wuppertal, Wuppertal, Germany
Max-Planck-Institut für Radioastronomie, Bonn, Germany
Karlsruhe Institute of Technology(Campus North), Institut für Kernphysik, Karlsruhe, Germany
Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
INFN, Laboratori Nazionali Del Gran Sasso, Assergi (L'Aquila), Italy
Universidade Federal Do Rio de Janeiro, Instituto de Física, Rio de Janeiro, RJ, Brazil
Institute of Nuclear Physics PAN, Krakow, Poland
Colorado State University, Fort Collins, CO, United States
'Horia Hulubei' National Institute for Physics and Nuclear Engineering, Bucharest- Magurele, Romania
Colorado State University, Pueblo, CO, United States
Universidad de Granada and C. A.F. P.E., Granada, Spain
Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), México, Mexico
Pennsylvania State University, University Park, PA, United States
Università di Milano, Sezione INFN, Milan, Italy
Università di Roma II Tor Vergata, Sezione INFN, Rome, Italy
Università di Catania and Sezione INFN, Catania, Italy
Dipartimento di Matematica e Fisica E. de Giorgi, Dell'Università Del Salento, Sezione INFN, Lecce, Italy
Università di Torino, Sezione INFN, Torino, Italy
Universidad Michoacana de San Nicolas de Hidalgo, Michoacan, Morelia, Mexico
Universidade Estadual de Campinas, IFGW, SP, Campinas, Brazil
Observatorio Pierre Auger, Malargüe, Argentina
Case Western Reserve University, Cleveland, OH, United States
University of Chicago, Enrico Fermi Institute, Chicago, IL, United States
SUBATECH, École des Mines de Nantes, Université de Nantes, France
Station de Radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU, France
Instituto de Astronomía y Física Del Espacio (CONICET-UBA), Buenos Aires, Argentina
Departamento de Física, FCEyN, Universidad de Buenos Aires y CONICET, Argentina
Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ, Brazil
Nikhef, Science Park, Amsterdam, Netherlands
Universidade de São Paulo, Instituto de Física, São Carlos, SP, Brazil
Universidad de Alcalá, Alcalá de Henares (Madrid), Spain
Michigan Technological University, Houghton, MI, United States
Dipartimento di Scienze Fisiche, Chimiche dell'Università dell'Aquila and INFN, Italy
Institute for Nuclear Science and Technology (INST), Hanoi, Viet Nam
KVI - Center for Advanced Radiation Technology, University of Groningen, Netherlands
IFLP, Universidad Nacional de la Plata and CONICET, La Plata, Argentina
RWTH Aachen University III, Physikalisches Institut A, Aachen, Germany
ASTRON, Dwingeloo, Netherlands
Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia
Laboratory for Astroparticle Physics, University of Nova Gorica, Slovenia
University of Hawaii, Honolulu, HI, United States
Instituto de Tecnologías en Detección y Astropartí culas (CNEA, CONICET, UNSAM), National Technological University, Faculty Mendoza (CONICET/CNEA), Mendoza, Argentina
Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, France
Karlsruhe Institute of Technology (Campus North), Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
University of Łódź, Łódź, Poland
Universidade Estadual de Feira de Santana, Brazil
Palacky University, RCPTM, Olomouc, Czech Republic
Institute of Space Sciences, Bucharest, Romania
Louisiana State University, Baton Rouge, LA, United States
Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy
University of New Mexico, Albuquerque, NM, United States
Faculdade Independente Do Nordeste, Vitória da Conquista, Brazil
Universidade Federal Do ABC, Santo-André, SP, Brazil
Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
School of Physics and Astronomy, University of Leeds, United Kingdom
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ, Brazil
Colorado School of Mines, Golden, CO, United States
Rudjer Bošković Institute, 10000 Zagreb, Croatia
Instituto de Física de Rosario (IFIR), CONICET/U. N.R. and Facultad de Ciencias Bioquímicas y Farmacéuticas U. N.R., Rosario, Argentina
Universidade Federal de Pelotas, Pelotas, RS, Brazil
Charles University, Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Prague, Czech Republic
Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF, CONICET, Argentina
Institut de Física Corpuscular, CSIC-Universitat de València, Valencia, Spain
Northeastern University, Boston, MA, United States
Universidade Federal da Bahia, Salvador, BA, Brazil
Dipartimento di Fisica dell'Università, INFN, Genova, Italy
University of Nebraska, Lincoln, NE, United States
Gran Sasso Science Institute (INFN), L'Aquila, Italy
University of Bucharest, Physics Department, Romania
Universidade de São Paulo, Escola de Engenharia de Lorena, Lorena, SP, Brazil
Los Alamos National Laboratory, Los Alamos, NM, United States
Konan University, Japan
NYU Abu Dhabi, United Arab Emirates
Universidad Autonoma de Chiapas on Leave of Absence from Cinvestav, Mexico
Palabras clave:astroparticle physics; cosmic rays; methods: data analysis
Año:2014
Volumen:789
Número:2
DOI: http://dx.doi.org/10.1088/0004-637X/789/2/160
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v789_n2_p_Multitudinario

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Citas:

---------- APA ----------
(2014) . A search for point sources of EeV photons. Astrophysical Journal, 789(2).
http://dx.doi.org/10.1088/0004-637X/789/2/160
---------- CHICAGO ----------
Multitudinario:485. "A search for point sources of EeV photons" . Astrophysical Journal 789, no. 2 (2014).
http://dx.doi.org/10.1088/0004-637X/789/2/160
---------- MLA ----------
Multitudinario:485. "A search for point sources of EeV photons" . Astrophysical Journal, vol. 789, no. 2, 2014.
http://dx.doi.org/10.1088/0004-637X/789/2/160
---------- VANCOUVER ----------
Multitudinario:485. A search for point sources of EeV photons. Astrophys. J. 2014;789(2).
http://dx.doi.org/10.1088/0004-637X/789/2/160