학술논문

A search for point sources of EeV photons
Document Type
Working Paper
Author
Pierre Auger CollaborationAab, A.Abreu, P.Aglietta, M.Ahlers, M.Ahn, E. J.Samarai, I. AlAlbuquerque, I. F. M.Allekotte, I.Allen, J.Allison, P.Almela, A.Castillo, J. AlvarezAlvarez-Muñiz, J.Batista, R. AlvesAmbrosio, M.Aminaei, A.Anchordoqui, L.Andringa, S.Aramo, C.Arqueros, F.Asorey, H.Assis, P.Aublin, J.Ave, M.Avenier, M.Avila, G.Badescu, A. M.Barber, K. B.Bäuml, J.Baus, C.Beatty, J. J.Becker, K. H.Bellido, J. A.Berat, C.Bertou, X.Biermann, P. L.Billoir, P.Blanco, F.Blanco, M.Bleve, C.Blümer, H.Boháčová, M.Boncioli, D.Bonifazi, C.Bonino, R.Borodai, N.Brack, J.Brancus, I.Brogueira, P.Brown, W. C.Buchholz, P.Bueno, A.Buscemi, M.Caballero-Mora, K. S.Caccianiga, B.Caccianiga, L.Candusso, M.Caramete, L.Caruso, R.Castellina, A.Cataldi, G.Cazon, L.Cester, R.Chavez, A. G.Cheng, S. H.Chiavassa, A.Chinellato, J. A.Chudoba, J.Cilmo, M.Clay, R. W.Cocciolo, G.Colalillo, R.Collica, L.Coluccia, M. R.Conceição, R.Contreras, F.Cooper, M. J.Coutu, S.Covault, C. E.Criss, A.Cronin, J.Curutiu, A.Dallier, R.Daniel, B.Dasso, S.Daumiller, K.Dawson, B. R.de Almeida, R. M.De Domenico, M.de Jong, S. J.Neto, J. R. T. de MelloDe Mitri, I.de Oliveira, J.de Souza, V.del Peral, L.Deligny, O.Dembinski, H.Dhital, N.Di Giulio, C.Di Matteo, A.Diaz, J. C.Castro, M. L. DíazDiep, P. N.Diogo, F.Dobrigkeit, C.Docters, W.D'Olivo, J. C.Dong, P. N.Dorofeev, A.Hasankiadeh, Q. DorostiDova, M. T.Ebr, J.Engel, R.Erdmann, M.Erfani, M.Escobar, C. O.Espadanal, J.Etchegoyen, A.Luis, P. Facal SanFalcke, H.Fang, K.Farrar, G.Fauth, A. C.Fazzini, N.Ferguson, A. P.Fernandes, M.Fick, B.Figueira, J. M.Filevich, A.Filipčič, A.Fox, B. D.Fratu, O.Fröhlich, U.Fuchs, B.Fuji, T.Gaior, R.García, B.Roca, S. T. GarciaGarcia-Gamez, D.Garcia-Pinto, D.Garilli, G.Bravo, A. GasconGate, F.Gemmeke, H.Ghia, P. L.Giaccari, U.Giammarchi, M.Giller, M.Glaser, C.Glass, H.Albarracin, F. GomezBerisso, M. GómezVitale, P. F. GómezGonçalves, P.Gonzalez, J. G.Gookin, B.Gorgi, A.Gorham, P.Gouffon, P.Grebe, S.Griffith, N.Grillo, A. F.Grubb, T. D.Guardincerri, Y.Guarino, F.Guedes, G. P.Hansen, P.Harari, D.Harrison, T. A.Hartmann, S.Harton, J. L.Haungs, A.Hebbeker, T.Heck, D.Heimann, P.Herve, A. E.Hill, G. C.Hojvat, C.Hollon, N.Holt, E.Homola, P.Hörandel, J. R.Horvath, P.Hrabovský, M.Huber, D.Huege, T.Insolia, A.Isar, P. G.Islo, K.Jandt, I.Jansen, S.Jarne, C.Josebachuili, M.Kääpä, A.Kambeitz, O.Kampert, K. H.Kasper, P.Katkov, I.Kégl, B.Keilhauer, B.Keivani, A.Kemp, E.Kieckhafer, R. M.Klages, H. O.Kleifges, M.Kleinfeller, J.Krause, R.Krohm, N.Krömer, O.Kruppke-Hansen, D.Kuempel, D.Kunka, N.La Rosa, G.LaHurd, D.Latronico, L.Lauer, R.Lauscher, M.Lautridou, P.Coz, S. LeLeão, M. S. A. B.Lebrun, D.Lebrun, P.de Oliveira, M. A. LeiguiLetessier-Selvon, A.Lhenry-Yvon, I.Link, K.López, R.Agüera, A. LopezLouedec, K.Bahilo, J. LozanoLu, L.Lucero, A.Ludwig, M.Lyberis, H.Maccarone, M. C.Malacari, M.Maldera, S.Maller, J.Mandat, D.Mantsch, P.Mariazzi, A. G.Marin, V.Mariş, I. C.Marsella, G.Martello, D.Martin, L.Martinez, H.Bravo, O. MartínezMartraire, D.Meza, J. J. MasíasMathes, H. J.Mathys, S.Matthews, A. J.Matthews, J.Matthiae, G.Maurel, D.Maurizio, D.Mayotte, E.Mazur, P. O.Medina, C.Medina-Tanco, G.Melissas, M.Melo, D.Menichetti, E.Menshikov, A.Messina, S.Meyhandan, R.Mićanović, S.Micheletti, M. I.Middendorf, L.Minaya, I. A.Miramonti, L.Mitrica, B.Molina-Bueno, L.Mollerach, S.Monasor, M.Ragaigne, D. MonnierMontanet, F.Morello, C.Moreno, J. C.Mostafá, M.Moura, C. A.Muller, M. A.Müller, G.Münchmeyer, M.Mussa, R.Navarra, G.Navas, S.Necesal, P.Nellen, L.Nelles, A.Neuser, J.Niechciol, M.Niemietz, L.Niggemann, T.Nitz, D.Nosek, D.Novotny, V.Nožka, L.Ochilo, L.Olinto, A.Oliveira, M.Ortiz, M.Pacheco, N.Selmi-Dei, D. PakkPalatka, M.Pallotta, J.Palmieri, N.Papenbreer, P.Parente, G.Parra, A.Pastor, S.Paul, T.Pech, M.Pękala, J.Pelayo, R.Pepe, I. M.Perrone, L.Pesce, R.Petermann, E.Peters, C.Petrera, S.Petrolini, A.Petrov, Y.Piegaia, R.Pierog, T.Pieroni, P.Pimenta, M.Pirronello, V.Platino, M.Plum, M.Porcelli, A.Porowski, C.Privitera, P.Prouza, M.Purrello, V.Quel, E. J.Querchfeld, S.Quinn, S.Rautenberg, J.Ravel, O.Ravignani, D.Revenu, B.Ridky, J.Riggi, S.Risse, M.Ristori, P.Rizi, V.Roberts, J.de Carvalho, W. RodriguesCabo, I. RodriguezFernandez, G. RodriguezRojo, J. RodriguezRodríguez-Frías, M. D.Ros, G.Rosado, J.Rossler, T.Roth, M.Roulet, E.Rovero, A. C.Rühle, C.Saffi, S. J.Saftoiu, A.Salamida, F.Salazar, H.Greus, F. SalesaSalina, G.Sánchez, F.Sanchez-Lucas, P.Santo, C. E.Santos, E.Santos, E. M.Sarazin, F.Sarkar, B.Sarmento, R.Sato, R.Scharf, N.Scherini, V.Schieler, H.Schiffer, P.Scholten, O.Schoorlemmer, H.Schovánek, P.Schulz, A.Schulz, J.Sciutto, S. J.Segreto, A.Settimo, M.Shadkam, A.Shellard, R. C.Sidelnik, I.Sigl, G.Sima, O.Śmiałkowski, A.Šmída, R.Snow, G. R.Sommers, P.Sorokin, J.Squartini, R.Srivastava, Y. N.Stanič, S.Stapleton, J.Stasielak, J.Stephan, M.Stutz, A.Suarez, F.Suomijärvi, T.Supanitsky, A. D.Sutherland, M. S.Swain, J.Szadkowski, Z.Szuba, M.Taborda, O. A.Tapia, A.Tartare, M.Thao, N. T.Theodoro, V. M.Tiffenberg, J.Timmermans, C.Peixoto, C. J. ToderoToma, G.Tomankova, L.Tomé, B.Tonachini, A.Elipe, G. TorralbaMachado, D. TorresTravnicek, P.Trovato, E.Tueros, M.Ulrich, R.Unger, M.Urban, M.Galicia, J. F. ValdésValiño, I.Valore, L.van Aar, G.Berg, A. M. van denvan Velzen, S.van Vliet, A.Varela, E.Cárdenas, B. VargasVarner, G.Vázquez, J. R.Vázquez, R. A.Veberič, D.Verzi, V.Vicha, J.Videla, M.Villaseñor, L.Vlcek, B.Vorobiov, S.Wahlberg, H.Wainberg, O.Walz, D.Watson, A. A.Weber, M.Weidenhaupt, K.Weindl, A.Werner, F.Whelan, B. J.Widom, A.Wiencke, L.Wilczyńska, B.Wilczyński, H.Will, M.Williams, C.Winchen, T.Wittkowski, D.Wundheiler, B.Wykes, S.Yamamoto, T.Yapici, T.Younk, P.Yuan, G.Yushkov, A.Zamorano, B.Zas, E.Zavrtanik, D.Zavrtanik, M.Zaw, I.Zepeda, A.Zhou, J.Zhu, Y.Silva, M. ZimbresZiolkowski, M.
Source
ApJ, 789, 160 (2014)
Subject
Astrophysics - High Energy Astrophysical Phenomena
Language
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{\deg} to +20{\deg}, 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.
Comment: 28 pages, 10 figures, accepted for publication in The Astrophysical Journal