Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several Galactic and extragalactic candidate objects are grouped in classes to reduce the statistical penalty of many trials from that of a blind search and are analyzed for a significant excess above the background expectation. The presented search does not find any evidence for photon emission at candidate sources, and combined p-values for every class are reported. Particle and energy flux upper limits are given for selected candidate sources. These limits significantly constrain predictions of EeV proton emission models from non-transient Galactic and nearby extragalactic sources, as illustrated for the particular case of the Galactic center region. © 2017. The American Astronomical Society. All rights reserved.
Documento: | Artículo |
Título: | A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory |
Autor: | Multitudinario:399 |
Filiación: | Institute for Mathematics, Astrophysics and Particle Physics (IMAPP), Radboud Universiteit, Nijmegen, Netherlands Laboratorio de Instrumentacao e Fisica Experimental de Particulas - LIP, Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal INFN, Sezione di Torino, Torino, Italy Osservatorio Astrofisico di Torino (INAF), Torino, Italy Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France Universidade de São Paulo, Inst. de Física, São Paulo, Brazil Centro Atómico Bariloche, Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina Universidad Tecnológica Nacional, Facultad Regional Buenos Aires, Buenos Aires, Argentina Universidad Nacional Autónoma de México, México D. F., Mexico Universidad de Santiago de Compostela, La Coruña, Spain Gran Sasso Science Institute (INFN), L'Aquila, Italy Department of Physics and Astronomy, Lehman College, City University of New York, New York, NY, United States INFN, Sezione di Napoli, Napoli, Italy Universidad Complutense de Madrid, Madrid, Spain University of Bucharest, Physics Department, Bucharest, Romania Universidad Industrial de Santander, Bucaramanga, Santander, Colombia Observatorio Pierre Auger, Malargüe, Argentina Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina University Politehnica of Bucharest, Bucharest, Romania Horia Hulubei National Institute for Physics and Nuclear Engineering, Romania Ohio State University, Columbus, OH, United States Bergische Universität Wuppertal, Department of Physics, Wuppertal, Germany University of Adelaide, Adelaide, SA, Australia Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France Università Torino, Dipartimento di Fisica, Torino, Italy Max-Planck-Institut für Radioastronomie, Bonn, Germany Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud, Univ. Paris/Saclay, CNRS-IN2P3, Paris, France Institute of Physics (FZU), Academy of Sciences of the Czech Republic, Prague, Czech Republic INFN, Sezione di Lecce, Lecce, Italy Università Del Salento, Dipartimento di Matematica e Fisica E. de Giorgi, Lecce, Italy INFN, Laboratori Nazionali Del Gran Sasso, L'Aquila, Italy Universidade Federal Do Rio de Janeiro (UFRJ), Instituto de Física, Rio de Janeiro RJ, Brazil Institute of Nuclear Physics, PAN, Krakow, Poland Karlsruhe Institute of Technology, Institut für Kernphysik (IKP), Karlsruhe, Germany Colorado State University, Fort Collins, CO, United States RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany Universität Siegen, Fachbereich 7 Physik - Experimentelle Teilchenphysik, Siegen, Germany Universidad de Granada, CAFPE, Granada, Spain INFN, Sezione di Catania, Catania, Italy Università di Catania, Dipartimento di Fisica e Astronomia, Catania, Italy Universidad Autónoma de Chiapas, Chiapas, Mexico Università di Milano, Dipartimento di Fisica, Milano, Italy Institute of Space Science, Bucharest, Romania Universidad Michoacana de San Nicolás de Hidalgo, Michoacana Morelia, Mexico Universidade Estadual de Campinas (UNICAMP), Campinas SP, Brazil Università di Napoli Federico II, Dipartimento di Fisica Ettore Pancini, Napoli, Italy Pennsylvania State University, University Park, PA, United States Case Western Reserve University, Cleveland, OH, United States University of Chicago, Chicago, IL, United States Università Del Salento, Dipartimento di Ingegneria, Salento, Italy Departamento de Física, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina Instituto de Astronomía y Física Del Espacio (IAFE CONICET-UBA), Buenos Aires, Argentina Universidade Federal Fluminense, Volta Redonda RJ, Brazil Nationaal Instituut voor Kernfysica en Hoge Energie Fysica (NIKHEF), Amsterdam, Netherlands Universidade de São Paulo, Inst. de Física de São Carlos, São Carlos, Brazil Università di Roma Tor Vergata, Dipartimento di Fisica, Roma, Italy INFN, Sezione di Roma Tor Vergata, Roma, Italy Università dell'Aquila, Dipartimento di Scienze Fisiche e Chimiche, L'Aquila, Italy INFN, Gruppo Collegato dell'Aquila, L'Aquila, Italy Universidade Federal Do Paraná, Setor Palotina, Brazil IFLP, Universidad Nacional de la Plata, CONICET, La Plata, Argentina Universität Hamburg, II. Institut für Theoretische Physik, Hamburg, Germany Fermi National Accelerator Laboratory, Batavia, IL, United States Stichting Astronomisch Onderzoek in Nederland (ASTRON), Dwingeloo, Netherlands New York University, New York, NY, United States Michigan Technological University, Houghton, MI, United States Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia Instituto de Física de Rosario (IFIR), CONICET/UNR, Facultad de Ciencias Bioquímicas y Farmacéuticas UNR, Buenos Aires, Argentina Instituto de Tecnologías en Detección y Astropartículas (CNEA CONICET UNSAM), Universidad Tecnológica Nacional, Facultad Regional Mendoza (CONICET/CNEA), Mendoza, Argentina SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France Karlsruhe Institute of Technology, Institut für Prozessdatenverarbeitung und Elektronik (IPE), Karlsruhe, Germany INFN, Sezione di Milano, Milano, Italy University of Łódź, Faculty of Astrophysics, Łódź, Poland University of Łódź, Faculty of High-Energy Astrophysics, Łódź, Poland University of Hawaii, Honolulu, HI, United States Universidade Estadual de Feira de Santana (UEFS), Feira de Santana BA, Brazil Karlsruhe Institute of Technology, Institut für Experimentelle Kernphysik (IEKP), Karlsruhe, Germany Palacky University, RCPTM, Olomouc, Czech Republic Colorado School of Mines, Golden, CO, United States Universidade Federal Do ABC (UFABC), Santo André SP, Brazil Benemérita Universidad Autónoma de Puebla (BUAP), Puebla, Mexico Centro de Investigación y de Estudios Avanzados Del IPN (CINVESTAV), México D. F., Mexico Louisiana State University, Baton Rouge, LA, United States University of New Mexico, Albuquerque, NM, United States Universidade Federal de Pelotas, Pelotas RS, Brazil University Prague, Institute of Particle and Nuclear Physics, Prague, Czech Republic Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF, CONICET, Buenos Aires, Argentina Northeastern University, Boston, MA, United States U. Profesional Interdisciplinaria en Ing. y Tecnologias Avanzadas del Instituto Politecnico Nacional, México D. F., Mexico KVI, Center for Advanced Radiation Technology, University of Groningen, Groningen, Netherlands INAF, Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, Palermo, Italy Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro RJ, Brazil University of Nebraska, Lincoln, NE, United States Universidade de São Paulo, Escola de Engenharia de Lorena, Lorena SP, Brazil School of Physics and Astronomy, University of Leeds, Leeds, United Kingdom |
Palabras clave: | astroparticle physics; cosmic rays; methods: data analysis |
Año: | 2017 |
Volumen: | 837 |
Número: | 2 |
DOI: | http://dx.doi.org/10.3847/2041-8213/aa61a5 |
Título revista: | Astrophysical Journal Letters |
Título revista abreviado: | Astrophys. J. Lett. |
ISSN: | 20418205 |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20418205_v837_n2_p_Multitudinario |