A search for point sources of EeV photons
Creators: name: Pierre Auger Collaboration
name: Aab, A.
name: Abreu, P.
name: Aglietta, M.
name: Ahlers, M.
name: Ahn, E. J.
name: Samarai, I. Al
name: Albuquerque, I. F. M.
name: Allekotte, I.
name: Allen, J.
name: Allison, P.
name: Almela, A.
name: Castillo, J. Alvarez
name: Alvarez-Muñiz, J.
name: Batista, R. Alves
name: Ambrosio, M.
name: Aminaei, A.
name: Anchordoqui, L.
name: Andringa, S.
name: Aramo, C.
name: Arqueros, F.
name: Asorey, H.
name: Assis, P.
name: Aublin, J.
name: Ave, M.
name: Avenier, M.
name: Avila, G.
name: Badescu, A. M.
name: Barber, K. B.
name: Bäuml, J.
name: Baus, C.
name: Beatty, J. J.
name: Becker, K. H.
name: Bellido, J. A.
name: Berat, C.
name: Bertou, X.
name: Biermann, P. L.
name: Billoir, P.
name: Blanco, F.
name: Blanco, M.
name: Bleve, C.
name: Blümer, H.
name: Boháčová, M.
name: Boncioli, D.
name: Bonifazi, C.
name: Bonino, R.
name: Borodai, N.
name: Brack, J.
name: Brancus, I.
name: Brogueira, P.
name: Brown, W. C.
name: Buchholz, P.
name: Bueno, A.
name: Buscemi, M.
name: Caballero-Mora, K. S.
name: Caccianiga, B.
name: Caccianiga, L.
name: Candusso, M.
name: Caramete, L.
name: Caruso, R.
name: Castellina, A.
name: Cataldi, G.
name: Cazon, L.
name: Cester, R.
name: Chavez, A. G.
name: Cheng, S. H.
name: Chiavassa, A.
name: Chinellato, J. A.
name: Chudoba, J.
name: Cilmo, M.
name: Clay, R. W.
name: Cocciolo, G.
name: Colalillo, R.
name: Collica, L.
name: Coluccia, M. R.
name: Conceição, R.
name: Contreras, F.
name: Cooper, M. J.
name: Coutu, S.
name: Covault, C. E.
name: Criss, A.
name: Cronin, J.
name: Curutiu, A.
name: Dallier, R.
name: Daniel, B.
name: Dasso, S.
name: Daumiller, K.
name: Dawson, B. R.
name: de Almeida, R. M.
name: De Domenico, M.
name: de Jong, S. J.
name: Neto, J. R. T. de Mello
name: De Mitri, I.
name: de Oliveira, J.
name: de Souza, V.
name: del Peral, L.
name: Deligny, O.
name: Dembinski, H.
name: Dhital, N.
name: Di Giulio, C.
name: Di Matteo, A.
name: Diaz, J. C.
name: Castro, M. L. Díaz
name: Diep, P. N.
name: Diogo, F.
name: Dobrigkeit, C.
name: Docters, W.
name: D'Olivo, J. C.
name: Dong, P. N.
name: Dorofeev, A.
name: Hasankiadeh, Q. Dorosti
name: Dova, M. T.
name: Ebr, J.
name: Engel, R.
name: Erdmann, M.
name: Erfani, M.
name: Escobar, C. O.
name: Espadanal, J.
name: Etchegoyen, A.
name: Luis, P. Facal San
name: Falcke, H.
name: Fang, K.
name: Farrar, G.
name: Fauth, A. C.
name: Fazzini, N.
name: Ferguson, A. P.
name: Fernandes, M.
name: Fick, B.
name: Figueira, J. M.
name: Filevich, A.
name: Filipčič, A.
name: Fox, B. D.
name: Fratu, O.
name: Fröhlich, U.
name: Fuchs, B.
name: Fuji, T.
name: Gaior, R.
name: García, B.
name: Roca, S. T. Garcia
name: Garcia-Gamez, D.
name: Garcia-Pinto, D.
name: Garilli, G.
name: Bravo, A. Gascon
name: Gate, F.
name: Gemmeke, H.
name: Ghia, P. L.
name: Giaccari, U.
name: Giammarchi, M.
name: Giller, M.
name: Glaser, C.
name: Glass, H.
name: Albarracin, F. Gomez
name: Berisso, M. Gómez
name: Vitale, P. F. Gómez
name: Gonçalves, P.
name: Gonzalez, J. G.
name: Gookin, B.
name: Gorgi, A.
name: Gorham, P.
name: Gouffon, P.
name: Grebe, S.
name: Griffith, N.
name: Grillo, A. F.
name: Grubb, T. D.
name: Guardincerri, Y.
name: Guarino, F.
name: Guedes, G. P.
name: Hansen, P.
name: Harari, D.
name: Harrison, T. A.
name: Hartmann, S.
name: Harton, J. L.
name: Haungs, A.
name: Hebbeker, T.
name: Heck, D.
name: Heimann, P.
name: Herve, A. E.
name: Hill, G. C.
name: Hojvat, C.
name: Hollon, N.
name: Holt, E.
name: Homola, P.
name: Hörandel, J. R.
name: Horvath, P.
name: Hrabovský, M.
name: Huber, D.
name: Huege, T.
name: Insolia, A.
name: Isar, P. G.
name: Islo, K.
name: Jandt, I.
name: Jansen, S.
name: Jarne, C.
name: Josebachuili, M.
name: Kääpä, A.
name: Kambeitz, O.
name: Kampert, K. H.
name: Kasper, P.
name: Katkov, I.
name: Kégl, B.
name: Keilhauer, B.
name: Keivani, A.
name: Kemp, E.
name: Kieckhafer, R. M.
name: Klages, H. O.
name: Kleifges, M.
name: Kleinfeller, J.
name: Krause, R.
name: Krohm, N.
name: Krömer, O.
name: Kruppke-Hansen, D.
name: Kuempel, D.
name: Kunka, N.
name: La Rosa, G.
name: LaHurd, D.
name: Latronico, L.
name: Lauer, R.
name: Lauscher, M.
name: Lautridou, P.
name: Coz, S. Le
name: Leão, M. S. A. B.
name: Lebrun, D.
name: Lebrun, P.
name: de Oliveira, M. A. Leigui
name: Letessier-Selvon, A.
name: Lhenry-Yvon, I.
name: Link, K.
name: López, R.
name: Agüera, A. Lopez
name: Louedec, K.
name: Bahilo, J. Lozano
name: Lu, L.
name: Lucero, A.
name: Ludwig, M.
name: Lyberis, H.
name: Maccarone, M. C.
name: Malacari, M.
name: Maldera, S.
name: Maller, J.
name: Mandat, D.
name: Mantsch, P.
name: Mariazzi, A. G.
name: Marin, V.
name: Mariş, I. C.
name: Marsella, G.
name: Martello, D.
name: Martin, L.
name: Martinez, H.
name: Bravo, O. Martínez
name: Martraire, D.
name: Meza, J. J. Masías
name: Mathes, H. J.
name: Mathys, S.
name: Matthews, A. J.
name: Matthews, J.
name: Matthiae, G.
name: Maurel, D.
name: Maurizio, D.
name: Mayotte, E.
name: Mazur, P. O.
name: Medina, C.
name: Medina-Tanco, G.
name: Melissas, M.
name: Melo, D.
name: Menichetti, E.
name: Menshikov, A.
name: Messina, S.
name: Meyhandan, R.
name: Mićanović, S.
name: Micheletti, M. I.
name: Middendorf, L.
name: Minaya, I. A.
name: Miramonti, L.
name: Mitrica, B.
name: Molina-Bueno, L.
name: Mollerach, S.
name: Monasor, M.
name: Ragaigne, D. Monnier
name: Montanet, F.
name: Morello, C.
name: Moreno, J. C.
name: Mostafá, M.
name: Moura, C. A.
name: Muller, M. A.
name: Müller, G.
name: Münchmeyer, M.
name: Mussa, R.
name: Navarra, G.
name: Navas, S.
name: Necesal, P.
name: Nellen, L.
name: Nelles, A.
name: Neuser, J.
name: Niechciol, M.
name: Niemietz, L.
name: Niggemann, T.
name: Nitz, D.
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name: Novotny, V.
name: Nožka, L.
name: Ochilo, L.
name: Olinto, A.
name: Oliveira, M.
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name: Pacheco, N.
name: Selmi-Dei, D. Pakk
name: Palatka, M.
name: Pallotta, J.
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name: Pastor, S.
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name: Pękala, J.
name: Pelayo, R.
name: Pepe, I. M.
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name: de Carvalho, W. Rodrigues
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name: Santo, C. E.
name: Santos, E.
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name: Zavrtanik, D.
name: Zavrtanik, M.
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Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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.
description: 28 pages, 10 figures, accepted for publication in The Astrophysical Journal