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9 results on '"M. SCUDERI"'

1. Strength evolution of simulated carbonate-bearing faults: The role of normal stress and slip velocity

Author

Eugenio Carminati, Cristiano Collettini, Marco M. Scuderi, Telemaco Tesei, and Marco Mercuri

Subjects
Calcite, Carbonate-bearing faults, Friction, Microstructures, 010504 meteorology & atmospheric sciences, friction, Geology, Crust, Cataclastic rock, Slip (materials science), Plasticity, 010502 geochemistry & geophysics, 01 natural sciences, chemistry.chemical_compound, carbonate-bearing faults, chemistry, Fault gouge, microstructures, calcite, geology, Carbonate, Pressure solution, Petrology, human activities, 0105 earth and related environmental sciences
Abstract

A great number of earthquakes occur within thick carbonate sequences in the shallow crust. At the same time, carbonate fault rocks exhumed from a depth < 6 km (i.e., from seismogenic depths) exhibit the coexistence of structures related to brittle (i.e., cataclasis) and ductile deformation processes (i.e., pressure-solution and granular plasticity). We performed friction experiments on water-saturated simulated carbonate-bearing faults for a wide range of normal stresses (from 5 to 120 MPa) and slip velocities (from 0.3 to 100 μm/s). At high normal stresses (σn > 20 MPa) fault gouges undergo strain-weakening, that is more pronounced at slow slip velocities, and causes a significant reduction of frictional strength, from μ = 0.7 to μ = 0.47. Microstructural analysis show that fault gouge weakening is driven by deformation accommodated by cataclasis and pressure-insensitive deformation processes (pressure solution and granular plasticity) that become more efficient at slow slip velocity. The reduction in frictional strength caused by strain weakening behaviour promoted by the activation of pressure-insensitive deformation might play a significant role in carbonate-bearing faults mechanics.

Published
2018

2. Do scaly clays control seismicity on faulted shale rocks?

Author

Marie Violay, L. F. Orellana, Marco M. Scuderi, and Cristiano Collettini

Subjects
education.field_of_study, 010504 meteorology & atmospheric sciences, Population, Geochemistry, Radioactive waste, Slip (materials science), Induced seismicity, 010502 geochemistry & geophysics, 01 natural sciences, Tectonics, Geophysics, Deformation mechanism, Space and Planetary Science, Geochemistry and Petrology, Bed, Earth and Planetary Sciences (miscellaneous), education, Oil shale, Geology, 0105 earth and related environmental sciences
Abstract

One of the major challenges regarding the disposal of radioactive waste in geological formations is to ensure isolation of radioactive contamination from the environment and the population. Shales are suitable candidates as geological barriers. However, the presence of tectonic faults within clay formations put the long-term safety of geological repositories into question. In this study, we carry out frictional experiments on intact samples of Opalinus Clay, i.e. the host rock for nuclear waste storage in Switzerland. We report experimental evidence suggesting that scaly clays form at low normal stress (≤20 MPa), at sub-seismic velocities (≤300 μm/s) and is related to pre-existing bedding planes with an ongoing process where frictional sliding is the controlling deformation mechanism. We have found that scaly clays show a velocity-weakening and -strengthening behaviour, low frictional strength, and poor re-strengthening over time, conditions required to allow the potential nucleation and propagation of earthquakes within the scaly clays portion of the formation. The strong similarities between the microstructures of natural and experimental scaly clays suggest important implications for the slip behaviour of shallow faults in shales. If natural and anthropogenic perturbations modify the stress conditions of the fault zone, earthquakes might have the potential to nucleate within zones of scaly clays controlling the seismicity of the clay-rich tectonic system, thus, potentially compromising the long-term safeness of geological repositories situated in shales.

Published
2018

3. Friction and scale-dependent deformation processes of large experimental carbonate faults

Author

Amir Sagy, Cristiano Collettini, Marco M. Scuderi, Telemaco Tesei, Brett M. Carpenter, Piergiorgio Scarlato, and Carolina Giorgetti

Subjects
Carbonate, Deformation, Fault, Friction, Nanoparticle, Scale, 010504 meteorology & atmospheric sciences, 010502 geochemistry & geophysics, 01 natural sciences, Physics::Fluid Dynamics, chemistry.chemical_compound, Geotechnical engineering, Shear velocity, Coefficient of friction, 0105 earth and related environmental sciences, Shearing (physics), Faults, Normal force, Geology, Mechanics, Friction, Faults, Laboratory Experiments, Condensed Matter::Soft Condensed Matter, Laboratory Experiments, chemistry, Scale dependent, Direct shear test
Abstract

We studied the frictional behaviour and deformation products of large (20 cm × 20 cm bare surfaces) experimental limestone faults. We sheared samples in a direct shear configuration, with an imposed normal force of 40–200 kN and shear velocity of 10 μm/s. The steady-state shearing of these surfaces yielded a coefficient of friction 0.7

Published
2017

4. The role of shale content and pore-water saturation on frictional properties of simulated carbonate faults

Author

Stefania Petroselli, Marco M. Scuderi, M. Brignoli, Lorenzo Osculati, Fabio Trippetta, Elisa Tinti, Cristiano Collettini, Giorgio Volonté, Stefano Mantica, and Roberta Ruggieri

Subjects
geography, geography.geographical_feature_category, 010504 meteorology & atmospheric sciences, clay, Slip (materials science), Fault (geology), 010502 geochemistry & geophysics, 01 natural sciences, friction carbonate faults, fault slip behavior, Pore water pressure, Geophysics, Shear (geology), Fault gouge, Deformation (engineering), Composite material, Oil shale, Geology, Strengthening mechanisms of materials, 0105 earth and related environmental sciences, Earth-Surface Processes
Abstract

The presence of weak phyllosilicates in mature carbonate fault zones has been invoked to explain weak faults. However, the relation between frictional strength, fault stability, mineralogical composition, and fabric of fault gouge, composed of strong and weak minerals, is poorly constrained. We used a biaxial apparatus to systematically shear different mixtures of shale (68% clay, 23% quartz and 4% plagioclase) and calcite, as powdered gouge, at room temperature, under constant normal stresses of 30, 50, 100 MPa and under room-dry and pore fluid-saturated conditions, i.e. CaCO3-equilibrated water. We performed 30 friction experiments during which velocity-stepping and slide-hold-slide tests were employed to assess frictional stability and to measure frictional healing, respectively. Our frictional data indicate that the mineralogical composition of fault gouges significantly affects frictional strength, stability, and healing as well as the presence of CaCO3-equilibrated water. Under room-dry condition, the increasing shale content determines a reduction in frictional strength, from μ = 0.71 to μ = 0.43, a lowering of the healing rates and a transition from velocity-weakening to velocity-strengthening behavior. Under wet condition, with increasing shale content we observe a more significant reduction in frictional strength (μ = 0.65–0.37), a near-zero healing and a velocity strengthening behavior. Microstructural investigations evidence a transition from localized deformation promoted by grain size reduction, in calcite-rich samples, to a more distributed deformation with frictional sliding along clay-enriched shear planes in samples with shale content greater than 50%. For faults cutting across sedimentary sequences composed of carbonates and clay-rich sediments, our results suggest that clay concentration and its ability to form foliated and interconnected networks promotes important heterogeneities in fault strength and slip behavior.

Published
2021

5. Diffusion and practice of ultrasound in emergency medicine departments in Italy

Author

V. Cianci, F. Angelini, R. Farina, M. Scuderi, S. Sofia, and R. Copetti

Subjects
medicine.medical_specialty, business.industry, Ultrasound, Emergency medicine, Internal Medicine, Medicine, Emergency ultrasound, Radiology, Nuclear Medicine and imaging, General Medicine, business, Article
Abstract

This paper reports data from a cognitive survey on the diffusion, practice and organization of ultrasound (US) in emergency medicine departments (EMDs) in Italy. The study was carried out by the Emergency Medicine Section of the Italian Society for Ultrasound in Medicine and Biology (SIUMB) in collaboration with the Italian Society for Emergency Medicine and Urgent Care (SIMEU).We created a questionnaire with 10 items, relating to 4 thematic areas. The questionnaires were administered from September 2007 to February 2008, by email, telephone or regular mail. In August 2008 the data were subjected to nonparametric statistical analysis (Spearman's Rho and Pearson's chi-square - software SPSS).We analyzed 170 questionnaires from the EMDs of all Italian regions. A US scanner is present in 64.7% of the ERs, emergency US (E-US) is practiced only in 47.6% of the ERs, and only in 24% of these more than 60% of the ER team members have training in US. The diffusion of US in other operative units of the EMDs ranges from 8.2% to 26.5%.The presence of a US scanner in the ER is essential for the practice and training and is correlated with the level of the EMD. The use of US appears to be less common in less equipped hospitals, regardless of the size of the ER and the availability of radiological services. Wider diffusion of US and greater integration with other services for the installment of the required equipment is to be hoped for.Sommario INTRODUZIONE: Riportiamo i dati di un'indagine conoscitiva sulla diffusione, pratica e organizzazione dell'ecografia (US) nei dipartimenti di emergenza (EMDs) in Italia. Questo studio è stato condotto dalla Sezione di Ecografia di Urgenza Emergenza della Società Italiana di Ecografia in Medicina e Biologia (SIUMB) in collaborazione con la Società Italiana di Medicina di Emergenza e Urgenza (SIMEU). METODI: Abbiamo creato un questionario con 10 campi, relativi a 4 aree tematiche. I questionari sono stati somministrati nel periodo settembre 2007-febbraio 2008, via e-mail, telefono o posta ordinaria. I dati sono stati analizzati con metodi statistici non parametrici nell'Agosto 2008. RISULTATI: Abbiamo analizzato 170 questionari provenienti dagli EMDs di tutte le regioni italiane. Un ecografo è presente nel 64,7% dei Pronto Soccorso, l'ecografia d'emergenza (E-US) è praticata solo nel 47,6% dei Pronto Soccorso, e solo nel 24% di questi più del 60% dei membri dell'èquipe è formata in ecografia. La diffusione degli US in altre Unità Operative degli EMDs va dall'8,2% al 26,5%. DISCUSSIONE: La presenza di un ecografo in Pronto Soccorso è essenziale per la pratica e la formazione e è correlata al livello del Dipartimento di Emergenza (I o II). L'uso dell'Ecografia sembra essere minore negli ospedali meno attrezzati, indipendentemente dalla grandezza del Pronto Soccorso e dalla disponibilità di Servizi di Radiologia. Si auspica una maggiore diffusione dell'ecografia e una maggiore integrazione con altri servizi quanto all'allocazione delle risorse richieste.

Published
2009

6. Incidence and Timing of Infections After Liver Transplant in Italy

Author

M. Gabriel Arana, Stefano Ferretti, Giancarlo Ferretti, M. Scuderi, Valerio Corazza, Pierluca Piselli, Claudio Angeletti, Giuseppe Ippolito, Chiara Zanfi, S. Barzoni Secchia, A. Dazzi, Diego Serraino, A.D. Pinna, Augusto Lauro, Enrico Girardi, Giovanni Vennarecci, Roberto Santoro, P.B. Berloco, Giuseppe Maria Ettorre, Paolo Grossi, A. Nanni Costa, N. Gusman, and S. Bellelli

Subjects
Male, medicine.medical_specialty, medicine.medical_treatment, Documentation, Liver transplantation, Female, Humans, Incidence, Infections, Italy, Liver Transplantation, Middle Aged, Postoperative Complications, Interquartile range, Intensive care, Internal medicine, Epidemiology, timing, medicine, Prospective cohort study, Transplantation, liver transplantation, business.industry, Incidence (epidemiology), Confidence interval, Surgery, business
Abstract

Background Infections are one of the main complications that cause high morbidity and mortality in transplant recipients. This study sought to estimate the incidence of infections and their main determinants in liver transplant recipients in the first year after transplantation. Patients and methods A prospective study was conducted on 103 consecutive patients (72% men) who underwent liver transplantation in three centers in Northern (Bologna) and Central (Rome) Italy in 2005. Person-years (PY) at risk, incidence rates (IR), IR ratios and 95% confidence intervals were computed for viral, fungal, and bacterial infections. Results The 103 patients (median age 55 years) contributed a total of 78.2 PYs, with a median follow-up of 286 days (interquartile range: 194 to 365 days). Fifty-eight patients (56.3%) experienced one or more infections, namely, 151 events (IR = 193.2 infections/100 PYs). IR for bacterial, fungal, and viral infections were 110.0, 56.3, and 26.9 infections/100 Pys, respectively. Within the first 30 days after transplantation, 37.9% patients (39/103) developed one or more events. Bacterial infections represented the most frequent event (86/151, 57.0%). Risk factors significantly associated with increased IR were gender (female), age (>50 years), prolonged intensive care stay, volume of blood transfused during surgery and posttransplant, and need for retransplantation. Conclusions These preliminary results showed the relevance of infectious events after liver transplantation especially those of bacterial etiology, and identified factors mainly associated with their occurrence.

Published
2007

7. Incidence and timing of infections in liver transplanted patients in Italy

Author

Chiara Zanfi, S. Barzoni Secchia, N. Gusman, Paolo Grossi, A. Nanni Costa, Stefano Ferretti, E. Girardi, M. Scuderi, Pierluca Piselli, Roberto Santoro, Giovanni Vennarecci, P.B. Berloco, E. Puro, Giuseppe Maria Ettorre, M. Gabriel Arana, Giancarlo Ferretti, Claudia Cimaglia, Augusto Lauro, Giuseppe Ippolito, Diego Serraino, A.D. Pinna, and Nicola Petrosillo

Subjects
medicine.medical_specialty, Pediatrics, Hepatology, business.industry, Internal medicine, Incidence (epidemiology), Gastroenterology, medicine, business
Published
2008

8. Identifying clouds over the Pierre Auger Observatory using infrared satellite data

Author

M. Zavrtanik, N. Nierstenhoefer, R. Dallier, F. Salamida, J. F. Valdés Galicia, K. H. Becker, I. De Mitri, A. Gascon Bravo, A. Saftoiu, D. Garcia-Gamez, S. T. Garcia Roca, B. Gookin, D. Melo, David Walz, D. Pakk Selmi-Dei, R. Sato, M. Niechciol, D. B. Tridapalli, A. Segreto, A.M. van den Berg, Darko Veberič, I. Rodriguez Cabo, B. Sarkar, J. L. Navarro, M. Videla, J. C. Diaz, M. A. Leigui de Oliveira, R. Tcaciuc, F. Montanet, J. C. dos Anjos, Petr Schovanek, D. Maurizio, J. C. Moreno, C. Aramo, Lorenzo Caccianiga, Y. Guardincerri, G. Müller, J.M. Chirinos, B. Rouillé-D'Orfeuil, Bruno Daniel, Pham Ngoc Diep, D. Garcia-Pinto, Radomir Smida, T. Yapici, J. J. Masías Meza, R. Gaior, S. H. Cheng, Heino Falcke, B. Tome, L. Buroker, J. Knapp, R. Bonino, J. Vicha, G. Wieczorek, A. Lopez Agüera, F. Diogo, F. Suarez, Sergio Dasso, T. Niggemann, R. M. de Almeida, P. Allison, A. Tapia, G. Cocciolo, H. Gemmeke, C. Rühle, V. de Souza, M. Unger, H. Wahlberg, L. Nellen, B. Zamorano Garcia, M. Buscemi, N. Scharf, V. Pirronello, F. Guarino, John Matthews, Peter Buchholz, M. S. A. B. Leão, C. Macolino, C. Hojvat, C. Morello, K. D. de Vries, D. Nosek, T. Yamamoto, R. M. Kieckhafer, C. Jarne, M. Tueros, J. Rautenberg, B. Revenu, Jan Ebr, M. Melissas, O. Wainberg, I.M. Brancus, D. Huber, S. Westerhoff, H. Glass, Marco Aglietta, W. C. Brown, A. Nelles, Jaime Alvarez-Muñiz, D. Schuster, M. A. Muller, Lu Lu, G. Marsella, D. Martraire, S. Gambetta, Peter L. Biermann, D. Harari, Alessandro Petrolini, B. Mitrica, M. Ludwig, J. Rosado, A. van Vliet, A. Tonachini, L. Nožka, A. Weindl, N. Hollon, V. Verzi, P. Brogueira, M. Urban, A. C. Rovero, C. Bleve, B. Keilhauer, V. H. Ponce, S. J. Sciutto, J. Schovancova, Paolo Privitera, L. Perrone, Jiri Chudoba, D. Torres Machado, H.O. Klages, G. Torralba Elipe, D. Kruppke-Hansen, B. Wundheiler, R. Krause, Gregory R Snow, Alina Mihaela Badescu, M. Oliveira, M. Ave, E. Trovato, J. Lozano Bahilo, Segev BenZvi, Corbin Covault, Maria-Teresa Dova, M. Gómez Berisso, R. C. Shellard, Azadeh Keivani, A. P. Ferguson, R. Alves Batista, C. Baus, A. Aminaei, Y. Petrov, J. Gitto, P. Hansen, A. Chiavassa, A. E. Herve, Lino Miramonti, Vincenzo Rizi, M. D. Rodríguez-Frías, Paul Sommers, R. Cester, B. J. Whelan, P. Gouffon, W. Rodrigues de Carvalho, M. Risse, D. Martello, M. Ziolkowski, O. Martínez Bravo, P. N. Dong, M. J. Cooper, F. Sánchez, M. Ambrosio, M. De Domenico, Jing Zhou, G. Toma, S. Mićanović, B. M. Baughman, L. R. Wiencke, T. A. Harrison, A. Porcelli, M. Tartare, J. W. Cronin, B. D. Fox, N. T. Thao, G. Parente, A. Gorgi, V. Marin, J. Espadanal, M. Palatka, P. W. Younk, A. Śmiałkowski, P. Pieroni, Peter Schiffer, V. Scherini, Nataliia Borodai, H. R. Marquez Falcon, Alejandro Almela, S. van Velzen, E. Menichetti, G. Matthiae, G. Varner, H. Spinka, Antonio Bueno, Sergio Pastor, I. M. Pepe, J. Oehlschläger, A. F. Barbosa, Maria Rita Coluccia, Miguel Mostafá, Dusan Mandat, Gualberto Avila, Ingomar Allekotte, Angela V. Olinto, M. Monasor, F. Arqueros, P. Necesal, P. Gonçalves, N. Palmieri, Markus Ahlers, J. K. Kulbartz, H. Rivera, E. Varela, N. Griffith, J. A.J. Matthews, Xavier Bertou, R. E. Burton, S. Jiraskova, T. Rossler, J. D. Swain, A. Menshikov, J. C. Marin, H. Schieler, A. Zepeda, R. Ulrich, Karl-Heinz Kampert, Antonella Castellina, E. M. Santos, Pedro Assis, A. Etchegoyen, K. Kadija, Carola Dobrigkeit, A. Insolia, M. Kleifges, D. Zavrtanik, I. Katkov, Javier Tiffenberg, J. Allen, E. Mayotte, R. Mussa, J. J. Beatty, P. Wahrlich, K. Louedec, J. Pȩkala, Mariangela Settimo, Iván Sidelnik, Alexey Yushkov, H. Dembinski, N. Fazzini, K. Weidenhaupt, J. Kleinfeller, Jose Chinellato, Alan Watson, M. I. Micheletti, T. Huege, A. Parra, S. J. De Jong, I. Zaw, O. Fratu, H. Cook, Jeffrey Brack, Olaf Scholten, P. Lautridou, M. Avenier, D. Thomas, Bruce R. Dawson, Y. N. Srivastava, Humberto Ibarguen Salazar, T. Hebbeker, Julien Aublin, A. Widom, D. LaHurd, F. Werner, P.O. Mazur, J. Alvarez Castillo, F. Sarazin, Elton J. G. Santos, K. Link, M. Prouza, Piotr Homola, P. Facal San Luis, Rúben Conceição, P. Abreu, M. Josebachuili, D. Ravignani, Miroslav Hrabovský, Daniel Kuempel, Carlos Escobar, R. F. Gamarra, A. Haungs, J. Neuser, J. R. T. de Mello Neto, E. J. Ahn, A. Letessier-Selvon, L. Molina-Bueno, E. Kemp, S. Le Coz, Luis A. Anchordoqui, J. L. Harton, D. Monnier Ragaigne, Lorenzo Cazon, S. Maldera, C. Pfendner, I. A. Minaya, A. Bellétoile, A. Schmidt, H. Martinez, O. Krömer, P. Mantsch, Z. Szadkowski, Ivone F. M. Albuquerque, Ke Fang, N. Pacheco, Lukas Middendorf, M. Platino, G. Navarra, J. Bäuml, C. E. Santo, Francisco J. Blanco, Johannes Schulz, G. Golup, N. Kunka, F. Gomez Albarracin, M. Pimenta, C. A. Moura, Brian Fick, H. Blümer, Balázs Kégl, Moritz Münchmeyer, G. Rodriguez Fernandez, A. D. Supanitsky, Hernán Asorey, Christopher B. Williams, G. C. Hill, M. Zimbres Silva, T. Šuša, I. C. Mariş, Ralph Engel, M. Plum, E. Petermann, D. Nitz, J. Stapleton, Miroslav Pech, J. Ridky, M. L. Díaz Castro, G. Farrar, S. Fliescher, A. Stutz, Pavel Horvath, Kai Daumiller, M. S. Sutherland, Rémi Bardenet, Petr Travnicek, P. Lebrun, L. Tomankova, Trent D. Grubb, Sofia Andringa, R. Meyhandan, M. Ortiz, R. J. Lauer, Juan Manuel Figueira, Roberta Colalillo, P. Ristori, A. G. Mariazzi, S. Jansen, B. García, Mario Scuderi, S. Messina, G. Salina, A. Curutiu, Tobias Winchen, R. López, Karen S. Caballero-Mora, Olivier Deligny, B. Caccianiga, S. Stanič, H. Schoorlemmer, P.F. Gómez Vitale, Martina Bohacova, Martin Erdmann, A. Dorofeev, Guenter Sigl, J. Sorokin, M. Blanco, C. E. Fracchiolla, Roger W Clay, D. D'Urso, L. Latronico, Corinne Berat, M. Giller, S. Navas, G. P. Guedes, K. B. Barber, M. Weber, U. Fröhlich, R. A. Vázquez, L. Valore, P. Karhan, P. A. Kasper, A. Filipčič, M. Straub, D. Maurel, Markus Roth, A. Shadkam, C. Timmermans, S. Petrera, J. R. Vázquez, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, J. Maller, Rossella Caruso, W. J. M. de Mello, A. Lucero, G. La Rosa, P. L. Ghia, Octavian Sima, J. G. Gonzalez, V. C. Holmes, D. Lebrun, R. Pesce, Jörg R. Hörandel, F. Salesa Greus, G. Cataldi, G. Garilli, D. Heck, L. Villaseñor, L. Martin, I. Lhenry-Yvon, S. Mollerach, E. Roulet, Marco Cilmo, B. Wilczyńska, W. Docters, Peter Gorham, R. Pelayo, L. Collica, S. Querchfeld, J. L. Kelley, E. D. Fraenkel, S. J. Saffi, L. Niemietz, L. del Peral, J. Roberts, O. Ravel, R. Piegaia, J. Rodriguez Martino, H. J. Mathes, G. De La Vega, O. Taşcǎu, J. Rodriguez Rojo, M. Szuba, F.G. Schröder, Enrique Zas, C. Di Giulio, Fernando Contreras, L. Caramete, M. Will, W. Tkaczyk, G. Yuan, S. Riggi, T. Antičić, J. Stasielak, S. Coutu, M. Lauscher, M. Pontz, A. C. Fauth, M. Stephan, H. Lyberis, Carla Bonifazi, Jose A. Bellido, B. Morales, Denise Boncioli, German Ros, B. Vargas Cárdenas, Maria Concetta Maccarone, T. Suomijärvi, J. Pallotta, E. J. Quel, Béatrice Fuchs, Niraj Dhital, I. Valiño, A. Filevich, P. T. Nhung, S. Grebe, R. Squartini, T. Paul, G. Medina-Tanco, G. van Aar, A. Criss, C. J. Todero Peixoto, M. Malacari, Yunrong Zhu, N. Krohm, Christian Glaser, H. Wilczyński, P. Billoir, Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Scientifique de la Station de Nançay (USN), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Research unit Astroparticle Physics, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, A. F., Barbosa, R., Bardenet, B., Baughman, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, M., Buscemi, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirino, J., Chudoba, M., Cilmo, R. W., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, S., Coutu, C. E., Covault, A., Cri, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, S. J., de Jong, G., De La Vega, W. J. M., de Mello, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, J. C., Diaz, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D’Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, B. D., Fox, C. E., Fracchiolla, E. D., Fraenkel, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, C., Glaser, H., Gla, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, A. F., Grillo, T. D., Grubb, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mariş, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M. I., Micheletti, L., Middendorf, I. A., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, T., Niggemann, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Oliveira, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d’Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, S. J., Saffi, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F. G., Schröder, J., Schulz, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, M., Straub, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, D. B., Tridapalli, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas Cárdena, G., Varner, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, P. Abreu, M. Aglietta, M. Ahler, E.J. Ahn, I.F.M. Albuquerque, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A.M. Badescu, K.B. Barber, A.F. Barbosa, R. Bardenet, B. Baughman, J. Bäuml, C. Bau, J.J. Beatty, K.H. Becker, A. Bellétoile, J.A. Bellido, S. BenZvi, C. Berat, X. Bertou, P.L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W.C. Brown, P. Buchholz, A. Bueno, L. Buroker, R.E. Burton, M. Buscemi, K.S. Caballero-Mora, B. Caccianiga, L. Caccianiga, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, S.H. Cheng, A. Chiavassa, J.A. Chinellato, J. Chirino, J. Chudoba, M. Cilmo, R.W. Clay, G. Cocciolo, R. Colalillo, L. Collica, M.R. Coluccia, R. Conceição, F. Contrera, H. Cook, M.J. Cooper, S. Coutu, C.E. Covault, A. Cri, J. Cronin, A. Curutiu, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, R.M. de Almeida, M. De Domenico, S.J. de Jong, G. De La Vega, W.J.M. de Mello, J.R.T. de Mello Neto, I. De Mitri, V. de Souza, K.D. de Vrie, L. del Peral, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, J.C. Diaz, M.L. Díaz Castro, P.N. Diep, F. Diogo, C. Dobrigkeit, W. Docter, J.C. D’Olivo, P.N. Dong, A. Dorofeev, J.C. dos Anjo, M.T. Dova, D. D’Urso, J. Ebr, R. Engel, M. Erdmann, C.O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Lui, H. Falcke, K. Fang, G. Farrar, A.C. Fauth, N. Fazzini, A.P. Ferguson, B. Fick, J.M. Figueira, A. Filevich, A. Filipčič, S. Fliescher, B.D. Fox, C.E. Fracchiolla, E.D. Fraenkel, O. Fratu, U. Fröhlich, B. Fuch, R. Gaior, R.F. Gamarra, S. Gambetta, B. García, S.T. Garcia Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. Gascon Bravo, H. Gemmeke, P.L. Ghia, M. Giller, J. Gitto, C. Glaser, H. Gla, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P.F. Gómez Vitale, P. Gonçalve, J.G. Gonzalez, B. Gookin, A. Gorgi, P. Gorham, P. Gouffon, S. Grebe, N. Griffith, A.F. Grillo, T.D. Grubb, Y. Guardincerri, F. Guarino, G.P. Guede, P. Hansen, D. Harari, T.A. Harrison, J.L. Harton, A. Haung, T. Hebbeker, D. Heck, A.E. Herve, G.C. Hill, C. Hojvat, N. Hollon, V.C. Holme, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, S. Jansen, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K.H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J.L. Kelley, E. Kemp, R.M. Kieckhafer, H.O. Klage, M. Kleifge, J. Kleinfeller, J. Knapp, R. Krause, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, J.K. Kulbartz, N. Kunka, G. La Rosa, D. LaHurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. Le Coz, M.S.A.B. Leão, D. Lebrun, P. Lebrun, M.A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberi, M.C. Maccarone, C. Macolino, M. Malacari, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A.G. Mariazzi, J. Marin, V. Marin, I.C. Mariş, H.R. Marquez Falcon, G. Marsella, D. Martello, L. Martin, H. Martinez, O. Martínez Bravo, D. Martraire, J.J. Masías Meza, H.J. Mathe, J. Matthew, J.A.J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, E. Mayotte, P.O. Mazur, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, S. Messina, R. Meyhandan, S. Mićanović, M.I. Micheletti, L. Middendorf, I.A. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morale, C. Morello, J.C. Moreno, M. Mostafá, C.A. Moura, M.A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, J.L. Navarro, S. Nava, P. Necesal, L. Nellen, A. Nelle, J. Neuser, P.T. Nhung, M. Niechciol, L. Niemietz, N. Nierstenhoefer, T. Niggemann, D. Nitz, D. Nosek, L. Nožka, J. Oehlschläger, A. Olinto, M. Oliveira, M. Ortiz, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, A. Parra, S. Pastor, T. Paul, M. Pech, J. Pe¸kala, R. Pelayo, I.M. Pepe, L. Perrone, R. Pesce, E. Petermann, S. Petrera, A. Petrolini, Y. Petrov, C. Pfendner, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, V.H. Ponce, M. Pontz, A. Porcelli, P. Privitera, M. Prouza, E.J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Robert, W. Rodrigues de Carvalho, I. Rodriguez Cabo, G. Rodriguez Fernandez, J. Rodriguez Martino, J. Rodriguez Rojo, M.D. Rodríguez-Fría, G. Ro, J. Rosado, T. Rossler, M. Roth, B. Rouillé-d’Orfeuil, E. Roulet, A.C. Rovero, C. Rühle, S.J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greu, G. Salina, F. Sánchez, C.E. Santo, E. Santo, E.M. Santo, F. Sarazin, B. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F.G. Schröder, J. Schulz, D. Schuster, S.J. Sciutto, M. Scuderi, A. Segreto, M. Settimo, A. Shadkam, R.C. Shellard, I. Sidelnik, G. Sigl, O. Sima, A. Śmiałkowski, R. Šmída, G.R. Snow, P. Sommer, J. Sorokin, H. Spinka, R. Squartini, Y.N. Srivastava, S. Stanič, J. Stapleton, J. Stasielak, M. Stephan, M. Straub, A. Stutz, F. Suarez, T. Suomijärvi, A.D. Supanitsky, T. Šuša, M.S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tapia, M. Tartare, O. Taşcău, R. Tcaciuc, N.T. Thao, D. Thoma, J. Tiffenberg, C. Timmerman, W. Tkaczyk, C.J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, G. Torralba Elipe, D. Torres Machado, P. Travnicek, D.B. Tridapalli, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J.F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, A.M. van den Berg, S. van Velzen, A. van Vliet, E. Varela, B. Vargas Cárdena, G. Varner, J.R. Vázquez, R.A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, A.A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, S. Westerhoff, B.J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, B. Wundheiler, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano Garcia, E. Za, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, J. Zhou, Y. Zhu, M. Zimbres Silva, M. Ziolkowski, J., Alvarez Mu?iz, T., Anti?i?, Aramo, Carla, J., B?uml, A., Bell?toile, C., Bleve, H., Bl?mer, M., Boh??ov?, Buscemi, Mario, Cilmo, Marco, G., Cocciolo, Colalillo, Roberta, M. R., Coluccia, R., Concei??o, I., De Mitri, M. L., D?az Castro, J. C., D?olivo, D., D'Urso, A., Filip?i?, U., Fr?hlich, B., Garc?a, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, Guarino, Fausto, J. R., H?randel, M., Hrabovsk?, B., K?gl, O., Kr?mer, M. S. A. B., Le?o, R., L?pez, A., Lopez Ag?era, I. C., Mari?, G., Marsella, D., Martello, O., Mart?nez Bravo, J. J., Mas?as Meza, S., Mi?anovi?, M., Mostaf?, G., M?ller, M., M?nchmeyer, L., No?ka, J., Oehlschl?ger, J., Pe?kala, L., Perrone, M. D., Rodr?guez Fr?a, B., Rouill? d?Orfeuil, C., R?hle, F., S?nchez, V., Scherini, P., Schov?nek, F. G., Schr?der, A., ?mia?kowski, R., ?m?da, S., Stani?, T., Suomij?rvi, T., ?u?a, O., Ta?c?u, B., Tom?, J. F., Vald?s Galicia, I., Vali?o, Valore, Laura, B., Vargas C?rdena, J. R., V?zquez, R. A., V?zquez, D., Veberi?, L., Villase?or, B., Wilczy?ska, and H., Wilczy?ski

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Atmospheric Monitoring, Satellites, Infrared, Astronomy, Cloud cover, FOS: Physical sciences, Atmospheric monitoring, 01 natural sciences, Ciencias de la Tierra y relacionadas con el Medio Ambiente, Auger, purl.org/becyt/ford/1 [https], purl.org/becyt/ford/1.5 [https], Observatory, Clouds, 0103 physical sciences, Extensive air showers, 010306 general physics, DETECTOR, Instrumentation and Methods for Astrophysics (astro-ph.IM), Image resolution, Ciencias Exactas, Physics, Pierre Auger Observatory, UHE Cosmic Rays, atmosphere, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, Astronomy and Astrophysics, Ultra-high energy cosmic rays, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], INFRAVERMELHO, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Pierre Auger observatory, ultra-high energy cosmic rays, extensive air showers, atmospheric monitoring, clouds, satellites, Física nuclear, Satellite, Central Laser Facility, Extensive Air Showers, Astrophysics - Instrumentation and Methods for Astrophysics, Meteorología y Ciencias Atmosféricas, SYSTEM, CIENCIAS NATURALES Y EXACTAS
Abstract

We describe a new method of identifying night-time clouds over the Pierre Auger Observatory using infrared data from the Imager instruments on the GOES-12 and GOES-13 satellites. We compare cloud. identifications resulting from our method to those obtained by the Central Laser Facility of the Auger Observatory. Using our new method we can now develop cloud probability maps for the 3000 km(2) of the Pierre Auger Observatory twice per hour with a spatial resolution of similar to 2.4 km by similar to 5.5 km. Our method could also be applied to monitor cloud cover for other ground-based observatories and for space-based observatories. (C) 2013 Elsevier B.V. All rights reserved., The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and adminis- trative staff in Malargüe. We are very grateful to the following agencies and organiza- tions for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministério de Ciência e Tecnolo- gia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB100100904, MSMT-CR LA08016, LG11044, MEB111003, MSM0021620859, LA08015, TACR TA01010517 and GA UK 119810, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre Na- tional de la Recherche Scientifique (CNRS), Conseil Régional Ile-de- France, Département Physique Nucléaire et Corpusculaire (PNC- IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/ CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministeri- um Baden-Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Ond- erwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wet- enschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. N N202 200239 and N N202 207238, Poland; Portuguese national funds and FEDER funds with- in COMPETE - Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia, Portugal; Roma- nian Authority for Scientific Research ANCS, CNDI-UEFISCDI part- nership projects nr.20/2012 and nr.194/2012, project nr.1/ ASPERA2/2012 ERA-NET and PN-II-RU-PD-2011-3-0145-17, Roma- nia; Ministry for Higher Education, Science, and Technology, Slove- nian Research Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio de Ciencia e Innovación and Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; The Leverhulme Foundation, Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE- FR02-04ER41300, DE-FG02-99ER41107, National Science Founda- tion, Grant No. 0450696, The Grainger Foundation USA; NAFO- STED, Vietnam; Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program, Grant No. PIRSES-2009-GA-246806; and UNESCO. We would like to thank the former Michigan Tech students: Nathan Kelley-Hoskins, Kyle Luck and Arin Nelson for their impor- tant contribution to the development of this paper. We would like to thank NOAA for the GOES satellite data that we freely down- loaded from their website. Also, we would like to mention in these acknowledgments Dr. Steve Ackerman and Dr. Tony Schreiner for very valuable conversations

Published
2013

9. Anisotropy studies around the galactic centre at EeV energies with the Auger Observatory

Author

K. Daumiller, J. Sorokin, D. Gonzalez, Miroslav Pech, Marcio Aparecido Muller, Catherine Newman-Holmes, F. Suarez, D. Garcia-Pinto, A. Zepeda, A. Letessier-Selvon, H. O. Klages, Hernán Asorey, W. Slater, M. Zavrtanik, A. Zech, G. Miele, M. Ave, R. M. de Almeida, S. Maltezos, R. Meyhandan, M. D. Healy, K. Arisaka, L. Prado, I. Lhenry-Yvon, Francesc Ferrer, Andreas Kopmann, R. Mussa, X. Garrido, Jc Bacelar, E. Moreno, L. Perrone, A. Gorgi, O. Deligny, M. Gonçalves do Amaral, E. M. Santos, Helio Nogima, F. Arneodo, Mohsen Harakeh, D. R. Claes, D. Maurizio, N. Kunka, H. Glass, Jan Kuijpers, C. Di Giulio, I. C. Maris, Enrique Zas, E. Kemp, T. Beau, José Eduardo Martinez, Xavier Bertou, D. Torresi, B. R. Becker, Petr Schovanek, Bruce R. Dawson, Tim Huege, C. J. Todero Peixoto, C. H. Wiebusch, Jaime Alvarez-Muñiz, S. Westerhoff, Jörg R. Hörandel, T. Bergmann, B. Wilczynska, M. T. Dova, L. Nožka, T. Vo Van, F. Schüssler, C. Timmermans, L. A. de Carvalho, J. N. Capdevielle, J. Chye, A. Della Selva, C. Grunfeld, V. Tunnicliffe, J. Gitto, R. R. McNeil, A. Chou, L. Nellen, R. Piegaia, L. Villasenor, T. McCauley, Carola Dobrigkeit, A. Cordier, C. Bonifazi, H. Blümer, A. Lopez Agüera, S. Ostapchenko, T. Dang Quang, I. Valiño, A. Insolia, M. E. Mancenido, Milena Horvat, M. Kleifges, Esteban Roulet, C. Grupen, Andrej Filipcic, J. Knapp, Warner A. Miller, C. Aramo, Henrique M. J. Barbosa, Alan Watson, E. Armengaud, R. Gómez Herrero, R. A. Vázquez, R. Engel, Gualberto Avila, Ingomar Allekotte, M. Patel, H. Spinka, Heiko Geenen, G. Rodriguez, Dariusz Gora, E. J. Quel, A. Tripathi, S. Kuhlman, M. Barkhausen, S. B. Clay, R. Fonte, B. E. Smith, G. Mancarella, A. D. Supanitsky, Corinne Berat, M. Giller, C. Morello, R. Ticona, W. Tkaczyk, M. C. Medina, J. Rodríguez Martino, T. Yamamoto, T. Venters, J. Pallotta, J. Matthews, A. Ewers, V. Van Elewyck, O. Blanch-Bigas, Angela V. Olinto, A. Etchegoyen, E. Strazzeri, J. Kleinfeller, B. Garcia, C. Bleve, Oleg Kalashev, Luis A. Anchordoqui, C. Hojvat, J. C. Hamilton, P. D. J. Clark, A. C. Fauth, Carlos Escobar, M. A. L. de Oliveira, Marco Aglietta, P. Bernardini, D. Lebrun, V. Verzi, I. De Mitri, F. Montanet, Jose Chinellato, A. Haungs, S. Maldera, B. Revenu, C. Robledo, P. Gouffon, O. Pisanti, K.-H. Becker, O. Tascau, A. Grillo, D. D'Urso, M. Zha, Vincenzo Rizi, P. Younk, Y. Petrov, Giuseppe Longo, C. Alvarez, R. Cester, Jose A. Bellido, L. F. A. Oliveira, L. del Peral, D. V. Camin, F. Sanchez, D. Allard, A. Horneffer, Dusan Mandat, J. Aublin, L. Cazon, J. A. J. Matthews, C. Aguirre, P. Allison, Silvia Mollerach, R. Bonino, J. W. Cronin, J.R. Rodriguez Rojo, J. Rosado, Antonio Velarde, T. Pierog, J. C. D'Olivo, A. Menshikov, E. Fokitis, D. Rodríguez Frías, E. Parizot, J. M. Brunet, M. Ortiz, D. Warner, G. Sigl, Petr Travnicek, R. W. Clay, A. Fernandez, B. Fick, T. Paul, Alejandro Luis Veiga, T. Asch, J. Brack, T. Schmidt, H. Dembinski, M. A. DuVernois, A. Kusenko, N. Martinez, G. Medina, T. Nguyen Thi, A. Geranios, T. Bäcker, M. Kaducak, Fabian Gobbi, D. Semikoz, G. Wieczorek, J. F. Valdés Galicia, Karl-Heinz Kampert, Antonella Castellina, B. Keilhauer, N. Fazzini, A. Tonachini, H. C. Reis, M. Ambrosio, R. C. Shellard, H. J. Mathes, S. Reucroft, D. Harari, Matthias Leuthold, A. G. Mariazzi, C. Morris, G. Cataldi, S. Parlati, Francisco J. Blanco, H. Wahlberg, Bei Cai, G. Sequeiros, C. Roucelle, Darko Veberic, S. Coutu, A. M. van den Berg, Daniel Omar Badagnani, Luis N. Epele, Heino Falcke, M. Urban, J. Pouryamout, Lawrence Wiencke, G. Parente, D. Heck, P. Skelton, M. Gonzalez, R. Knapik, F. Arqueros, H. Schieler, J. Lee, M. Prouza, A. Smialkowski, Y. Kolotaev, N. Smetniansky De Grande, Bruno L. Lago, G. Navarra, N. G. Busca, V. M. Olmos-Gilbaja, C. Meurer, M. Tueros, W. J. M. de Mello, P. Darriulat, P. Bauleo, D. Fazio, J. G. Gonzalez, S. Harmsma, C. Rivière, A. Tamburro, M. Monasor, V. Scherini, Diego Melo, Segev BenZvi, Mario Scuderi, A. Dorofeev, J. Xu, M. Roth, R. Nichol, Gregory R Snow, P. Sommers, E. Menichetti, G. Matthiae, Corbin Covault, F. Gomez Albarracin, T. Suomijärvi, P. Blasi, P. Privitera, J. Gutiérrez, S. Robbins, A. Filevich, D. Pham Ngoc, R. Pelayo, J. Rautenberg, M. Iarlori, P. L. Ghia, Subir Sarkar, M. Boratav, P. Mantsch, M. Boháčová, U. Cotti, S. Hartmann, J. C. Diaz, R. Ulrich, J. Beatty, D. Martello, Juan Pablo Gongora, Martin Erdmann, J. Swain, M. Risse, German Ros, N. Nierstenhöfer, W. Fulgione, M. Hrabovský, D. Tscherniakhovski, R. Lopez, J. Pȩkala, J. R. T. de Mello Neto, A. Stutz, P. L. Biermann, Rossella Caruso, O. Martinez, S. J. Sciutto, M. I. Micheletti, G. Gelmini, P. Buchholz, P. O. Mazur, J. L. Harton, Piotr Homola, Marcos Santander, P. Facal San Luis, D. Zavrtanik, C. Wileman, D. Fuhrmann, J. Oehlschläger, O. Krömer, Z. Szadkowski, M. Ziolkowski, Beatriz B. Siffert, S. Petrera, J. Řídký, F. Guarino, D. Newton, T. Waldenmaier, G. P. Guedes, M. Malek, Radomir Smida, C. Delle Fratte, F. Salamida, B. Morales, T. N. Pham Thi, M. G. Winnick, G. Tristram, J. D. Hague, P. LeBrun, H. Wilczynski, P. Walker, P. Boghrat, L. Valore, D. Barnhill, M. Roberts, V. Grassi, A. Chiavassa, G. Salina, D. Nosek, G. Maurin, M. Gómez Berisso, O. Wainberg, T. A. Porter, A. Risi, C. Lachaud, R. Sato, B. Connolly, D. Monnier Ragaigne, J. Abraham, P. Billoir, A. Lucero, A. Meli, L. Garrard, S. L. C. Barroso, M. Videla, Thomas Hebbeker, B. S. Atulugama, M. Unger, J. C. Anjos, K. S. Caballero-Mora, Olaf Scholten, Humberto Ibarguen Salazar, S. Dagoret-Campagne, D. Nitz, D. Dornic, J. Chauvin, S. De Jong, C. De Donato, Miguel Mostafa, T. Ohnuki, P. Petrinca, M. McEwen, V. de Souza, S. Vorobiov, H. Gemmeke, A. F. Barbosa, M. Palatka, I. M. Pepe, A. C. Rovero, M. Gold, A. Tamashiro, K. Payet, L. Otero, I. Fleck, B. Rouillé-d'Orfeuil, P. Sokolsky, D. H. Koang, L. Voyvodic, G. A. Medina Tanco, S. Ferry, J., Abraham, M., Aglietta, C., Aguirre, D., Allard, I., Allekotte, P., Allison, C., Alvarez, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, J. C., Anjo, C., Aramo, K., Arisaka, E., Armengaud, F., Arneodo, F., Arquero, T., Asch, H., Asorey, B. S., Atulugama, J., Aublin, M., Ave, G., Avila, J., Bacelar, T., Backer, D., Badagnani, A. F., Barbosa, H. M. J., Barbosa, M., Barkhausen, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, B. R., Becker, K. H., Becker, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, Bernardini, Paolo, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, P., Blasi, Bleve, Carla, H., Blumer, P., Boghrat, M., Bohacova, C., Bonifazi, R., Bonino, M., Boratav, J., Brack, J. M., Brunet, P., Buchholz, N. G., Busca, K. S., Caballero Mora, B., Cai, D. V., Camin, J. N., Capdevielle, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chye, D., Clae, P. D. J., Clark, R. W., Clay, S. B., Clay, B., Connolly, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, J., Cronin, S., Dagoret Campagne, T., Dang Quang, P., Darriulat, K., Daumiller, B. R., Dawson, R. M., de Almeida, L. A., de Carvalho, C., De Donato, S. J., de Jong, W. J. M. de Mello J., R., J. R. T., de Mello Neto, DE MITRI, Ivan, M. A. L., de Oliveira, V., de Souza, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, D., Dornic, A., Dorofeev, M. T., Dova, D., D’Urso, M. A., Duvernoi, R., Engel, L., Epele, M., Erdmann, C. O., Escobar, A., Etchegoyen, A., Ewer, P., Facal San Lui, H., Falcke, A. C., Fauth, D., Fazio, N., Fazzini, A., Fernandez, F., Ferrer, S., Ferry, B., Fick, A., Filevich, A., Filipcic, I., Fleck, E., Fokiti, R., Fonte, D., Fuhrmann, W., Fulgione, B., Garcia, D., Garcia Pinto, L., Garrard, X., Garrido, H., Geenen, G., Gelmini, H., Gemmeke, A., Geranio, P. L., Ghia, M., Giller, J., Gitto, H., Gla, F., Gobbi, M. S., Gold, F., Gomez Albarracin, M., Gomez Berisso, R., Gomez Herrero, M., Goncalves do Amaral, J. P., Gongora, D., Gonzalez, J. G., Gonzalez, M., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, V., Grassi, A., Grillo, C., Grunfeld, C., Grupen, F., Guarino, G. P., Guede, J., Gutierrez, J. D., Hague, J. C., Hamilton, M. N., Harakeh, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, M. D., Healy, T., Hebbeker, D., Heck, C., Hojvat, P., Homola, J., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, M., Iarlori, A., Insolia, M., Kaducak, O., Kalashev, K. H., Kampert, B., Keilhauer, E., Kemp, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, Y., Kolotaev, A., Kopmann, O., Kromer, S., Kuhlman, J., Kuijper, N., Kunka, A., Kusenko, C., Lachaud, B. L., Lago, D., Lebrun, P., Lebrun, J., Lee, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, G., Longo, R., Lopez, A., Lopez Aguera, A., Lucero, S., Maldera, M., Malek, S., Maltezo, Mancarella, Giovanni, M. E., Mancenido, D., Mandat, P., Mantsch, A. G., Mariazzi, I. C., Mari, Martello, Daniele, N., Martinez, J., Martinez, O., Martinez, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, G., Maurin, D., Maurizio, P. O., Mazur, T., Mccauley, M., Mcewen, R. R., Mcneil, G., Medina, M. C., Medina, G., Medina Tanco, A., Meli, D., Melo, E., Menichetti, A., Menshikov, Meurer, C. h. r., R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, C., Morri, M., Mostafa', M. A., Muller, R., Mussa, G., Navarra, L., Nellen, C., Newman Holme, D., Newton, T., Nguyen Thi, R., Nichol, N., Nierstenhofer, D., Nitz, H., Nogima, D., Nosek, L., Nozka, J., Oehlschlager, T., Ohnuki, A., Olinto, L. F. A., Oliveira, V. M., Olmos Gilbaja, M., Ortiz, S., Ostapchenko, L., Otero, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, M., Patel, T., Paul, K., Payet, M., Pech, J., Pekala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, S., Petrera, P., Petrinca, Y., Petrov, D., Pham Ngoc, T. N., Pham Thi, R., Piegaia, T., Pierog, O., Pisanti, T. A., Porter, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, H. C., Rei, S., Reucroft, B., Revenu, J., Ridky, A., Risi, M., Risse, C., Riviere, V., Rizi, S., Robbin, M., Robert, C., Robledo, G., Rodriguez, D., Rodriguez Fria, J., Rodriguez Martino, J., Rodriguez Rojo, G., Ro, J., Rosado, M., Roth, C., Roucelle, B., Rouille' d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, E. M., Santo, S., Sarkar, R., Sato, V., Scherini, T., Schmidt, O., Scholten, P., Schovanek, F., Schussler, S. J., Sciutto, M., Scuderi, D., Semikoz, G., Sequeiro, R. C., Shellard, B. B., Siffert, G., Sigl, P., Skelton, W., Slater, N., Smetniansky De Grande, A., Smialkowski, R., Smida, B. E., Smith, G. R., Snow, P., Sokolsky, P., Sommer, J., Sorokin, H., Spinka, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, O., Tascau, R., Ticona, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, A., Tonachini, D., Torresi, P., Travnicek, A., Tripathi, G., Tristram, D., Tscherniakhovski, M., Tuero, V., Tunnicliffe, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, V., van Elewyck, R. A., Vazquez, D., Veberic, A., Veiga, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, T., Vo Van, S., Vorobiov, L., Voyvodic, H., Wahlberg, O., Wainberg, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, S., Westerhoff, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, J., Xu, T., Yamamoto, P., Younk, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zech, A., Zepeda, M., Zha, M., Ziolkowski, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), APC - Cosmologie, Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, APC - THEORIE, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Guarino, Fausto, Longo, Giuseppe, Aramo, Carla, DELLA SELVA, Angelo, Miele, Gennaro, Pisanti, Ofelia, Valore, Laura, D'Urso, Domenico, Auger, Collaboration, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik

Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, Osservatorio Pierre Auger, Flux, Cosmic ray, Astrophysics, 01 natural sciences, Auger, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Raggi cosmici, Observatory, 0103 physical sciences, Anisotropies, Centro galattico, Galactic centre, Cosmic rays, 010303 astronomy & astrophysics, Ciencias Exactas, media_common, Pierre Auger Observatory, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Anisotropie, centro galáctico, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Física, Astronomy and Astrophysics, Radiación cósmica, Anisotropía, Galaxy, Sky, Experimental High Energy Physics
Abstract

Data from the Pierre Auger Observatory are analyzed to search for anisotropies near the direction of the Galactic Centre at EeV energies. The exposure of the surface array in this part of the sky is already significantly larger than that of the fore-runner experiments. Our results do not support previous findings of localized excesses in the AGASA and SUGAR data. We set an upper bound on a point-like flux of cosmic rays arriving from the Galactic Centre which excludes several scenarios predicting sources of EeV neutrons from Sagittarius $A$. Also the events detected simultaneously by the surface and fluorescence detectors (the `hybrid' data set), which have better pointing accuracy but are less numerous than those of the surface array alone, do not show any significant localized excess from this direction., Comment: Matches published version

Published
2007

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