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Spohn T, Hudson TL, Marteau E, Golombek M, Grott M, Wippermann T, Ali KS, Schmelzbach C, Kedar S, Hurst K, Trebi-Ollennu A, Ansan V, Garvin J, Knollenberg J, Müller N, Piqueux S, Lichtenheldt R, Krause C, Fantinati C, Brinkman N, Sollberger D, Delage P, Vrettos C, Reershemius S, Wisniewski L, Grygorczuk J, Robertsson J, Edme P, Andersson F, Krömer O, Lognonné P, Giardini D, Smrekar SE, Banerdt WB. The InSight HP 3 Penetrator (Mole) on Mars: Soil Properties Derived from the Penetration Attempts and Related Activities. Space Sci Rev 2022; 218:72. [PMID: 36514324 PMCID: PMC9734249 DOI: 10.1007/s11214-022-00941-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
UNLABELLED The NASA InSight Lander on Mars includes the Heat Flow and Physical Properties Package HP3 to measure the surface heat flow of the planet. The package uses temperature sensors that would have been brought to the target depth of 3-5 m by a small penetrator, nicknamed the mole. The mole requiring friction on its hull to balance remaining recoil from its hammer mechanism did not penetrate to the targeted depth. Instead, by precessing about a point midway along its hull, it carved a 7 cm deep and 5-6 cm wide pit and reached a depth of initially 31 cm. The root cause of the failure - as was determined through an extensive, almost two years long campaign - was a lack of friction in an unexpectedly thick cohesive duricrust. During the campaign - described in detail in this paper - the mole penetrated further aided by friction applied using the scoop at the end of the robotic Instrument Deployment Arm and by direct support by the latter. The mole tip finally reached a depth of about 37 cm, bringing the mole back-end 1-2 cm below the surface. It reversed its downward motion twice during attempts to provide friction through pressure on the regolith instead of directly with the scoop to the mole hull. The penetration record of the mole was used to infer mechanical soil parameters such as the penetration resistance of the duricrust of 0.3-0.7 MPa and a penetration resistance of a deeper layer ( > 30 cm depth) of 4.9 ± 0.4 MPa . Using the mole's thermal sensors, thermal conductivity and diffusivity were measured. Applying cone penetration theory, the resistance of the duricrust was used to estimate a cohesion of the latter of 2-15 kPa depending on the internal friction angle of the duricrust. Pushing the scoop with its blade into the surface and chopping off a piece of duricrust provided another estimate of the cohesion of 5.8 kPa. The hammerings of the mole were recorded by the seismometer SEIS and the signals were used to derive P-wave and S-wave velocities representative of the topmost tens of cm of the regolith. Together with the density provided by a thermal conductivity and diffusivity measurement using the mole's thermal sensors, the elastic moduli were calculated from the seismic velocities. Using empirical correlations from terrestrial soil studies between the shear modulus and cohesion, the previous cohesion estimates were found to be consistent with the elastic moduli. The combined data were used to derive a model of the regolith that has an about 20 cm thick duricrust underneath a 1 cm thick unconsolidated layer of sand mixed with dust and above another 10 cm of unconsolidated sand. Underneath the latter, a layer more resistant to penetration and possibly containing debris from a small impact crater is inferred. The thermal conductivity increases from 14 mW/m K to 34 mW/m K through the 1 cm sand/dust layer, keeps the latter value in the duricrust and the sand layer underneath and then increases to 64 mW/m K in the sand/gravel layer below. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11214-022-00941-z.
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Affiliation(s)
- T. Spohn
- International Space Science Institute, Hallerstrasse 6, 3012 Bern, Switzerland
- DLR Institute of Planetary Research, Rutherfordstr. 2, 12489 Berlin, Germany
| | - T. L. Hudson
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - E. Marteau
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - M. Golombek
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - M. Grott
- DLR Institute of Planetary Research, Rutherfordstr. 2, 12489 Berlin, Germany
| | - T. Wippermann
- DLR Institute of Space Systems, Robert-Hooke-Str. 7, 28359 Bremen, Germany
| | - K. S. Ali
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - C. Schmelzbach
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - S. Kedar
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - K. Hurst
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - A. Trebi-Ollennu
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - V. Ansan
- Laboratoire de Planétologie et Géodynamique de Nantes, Université de Nantes, 44322 Nantes, France
| | - J. Garvin
- NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771 USA
| | - J. Knollenberg
- DLR Institute of Planetary Research, Rutherfordstr. 2, 12489 Berlin, Germany
| | - N. Müller
- DLR Institute of Planetary Research, Rutherfordstr. 2, 12489 Berlin, Germany
| | - S. Piqueux
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - R. Lichtenheldt
- DLR Institute of System Dynamics and Control, Münchener Strasse 20, 82234 Wessling, Germany
| | - C. Krause
- DLR MUSC Space Operations and Astronaut Training, Linder Höhe, 51147 Köln, Germany
| | - C. Fantinati
- DLR MUSC Space Operations and Astronaut Training, Linder Höhe, 51147 Köln, Germany
| | - N. Brinkman
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - D. Sollberger
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - P. Delage
- École nationale des ponts et chaussées, Laboratoire Navier, Paris, France
| | - C. Vrettos
- Department of Civil Engineering, University of Kaiserslautern, Kaiserslautern, Germany
| | - S. Reershemius
- DLR Institute of Space Systems, Robert-Hooke-Str. 7, 28359 Bremen, Germany
| | - L. Wisniewski
- Astronika Sp. z o.o., ul. Bartycka 18, 00-716 Warszawa, Poland
| | - J. Grygorczuk
- Astronika Sp. z o.o., ul. Bartycka 18, 00-716 Warszawa, Poland
| | - J. Robertsson
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - P. Edme
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - F. Andersson
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | | | - P. Lognonné
- Institut du Physique du Globe Paris, CNRS, Université Paris Cité, Paris, France
| | - D. Giardini
- Department of Earth Sciences, ETH Zürich, Institute of Geophysics, CH-8092 Zürich, Switzerland
| | - S. E. Smrekar
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
| | - W. B. Banerdt
- Jet Propulsion Laboratory, California Institute of Technology, Oak Grove Drive, Pasadena, CA 91109 USA
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Hiller R, Bezyazeekov PA, Budnev NM, Fedorov O, Gress OA, Haungs A, Huege T, Kazarina Y, Kleifges M, Korosteleva EE, Kostunin D, Krömer O, Kungel V, Kuzmichev LA, Lubsandorzhiev N, Mirgazov RR, Monkhoev R, Osipova EA, Pakhorukov A, Pankov L, Prosin VV, Rubtsov GI, Schröder FG, Wischnewski R, Zagorodnikov A. Tunka-Rex: energy reconstruction with a single antenna station. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713501004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kostunin D, Bezyazeekov PA, Budnev NM, Fedorov O, Gress OA, Haungs A, Hiller R, Huege T, Kazarina Y, Kleifges M, Korosteleva EE, Krömer O, Kungel V, Kuzmichev LA, Lubsandorzhiev N, Mirgazov RR, Monkhoev R, Osipova EA, Pakhorukov A, Pankov L, Prosin VV, Rubtsov GI, Schröder FG, Wischnewski R, Zagorodnikov A. Towards a cosmic-ray mass-composition study at Tunka Radio Extension. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713501005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Schröder FG, Bezyazeekov PA, Budnev NM, Fedorov O, Gress OA, Haungs A, Hiller R, Huege T, Kazarina Y, Kleifges M, Korosteleva EE, Kostunin D, Krömer O, Kungel V, Kuzmichev LA, Lubsandorzhiev N, Mirgazov RR, Monkhoev R, Osipova EA, Pakhorukov A, Pankov L, Prosin V, Rubtsov GI, Wischnewski R, Zagorodnikov A. Tunka-Rex: Status, Plans, and Recent Results. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713501003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kostunin D, Bezyazeekov P, Budnev N, Fedorov O, Gress O, Haungs A, Hiller R, Huege T, Kazarina Y, Kleifges M, Korosteleva E, Krömer O, Kungel V, Kuzmichev L, Lubsandorzhiev N, Marshalkina T, Mirgazov R, Monkhoev R, Osipova E, Pakhorukov A, Pankov L, Prosin V, Rubtsov G, Schröder F, Wischnewski R, Zagorodnikov A. Latest results of the Tunka Radio Extension. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201714511001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Aab A, Abreu P, Aglietta M, Ahn EJ, Samarai IA, Albuquerque IFM, Allekotte I, Allen J, Allison P, Almela A, Castillo JA, Alvarez-Muñiz J, Batista RA, Ambrosio M, Aminaei A, Anchordoqui L, Andringa S, Aramo C, Aranda VM, Arqueros F, Asorey H, Assis P, Aublin J, Ave M, Avenier M, Avila G, Awal N, Badescu AM, Barber KB, Bäuml J, Baus C, Beatty JJ, Becker KH, Bellido JA, Berat C, Bertaina ME, Bertou X, Biermann PL, Billoir P, Blaess S, Blanco M, Bleve C, Blümer H, Boháčová M, Boncioli D, Bonifazi C, Bonino R, Borodai N, Brack J, Brancus I, Bridgeman A, Brogueira P, Brown WC, Buchholz P, Bueno A, Buitink S, Buscemi M, Caballero-Mora KS, Caccianiga B, Caccianiga L, Candusso M, Caramete L, Caruso R, Castellina A, Cataldi G, Cazon L, Cester R, Chavez AG, Chiavassa A, Chinellato JA, Chudoba J, Cilmo M, Clay RW, Cocciolo G, Colalillo R, Coleman A, Collica L, Coluccia MR, Conceição R, Contreras F, Cooper MJ, Cordier A, Coutu S, Covault CE, Cronin J, Curutiu A, Dallier R, Daniel B, Dasso S, Daumiller K, Dawson BR, Almeida RMD, Domenico MD, Jong SJD, Neto JRTDM, Mitri ID, Oliveira JD, Souza VD, Peral LD, Deligny O, Dembinski H, Dhital N, Giulio CD, Matteo AD, Diaz JC, Castro MLD, Diogo F, Dobrigkeit C, Docters W, D’Olivo JC, Dorofeev A, Hasankiadeh QD, Dova MT, Ebr J, Engel R, Erdmann M, Erfani M, Escobar CO, Espadanal J, Etchegoyen A, Luis PFS, Falcke H, Fang K, Farrar G, Fauth AC, Fazzini N, Ferguson AP, Fernandes M, Fick B, Figueira JM, Filevich A, Filipčič A, Fox BD, Fratu O, Fröhlich U, Fuchs B, Fujii T, Gaior R, García B, Roca STG, Garcia-Gamez D, Garcia-Pinto D, Garilli G, Bravo AG, Gate F, Gemmeke H, Ghia PL, Giaccari U, Giammarchi M, Giller M, Glaser C, Glass H, Berisso MG, Vitale PFG, Gonçalves P, Gonzalez JG, González N, Gookin B, Gordon J, Gorgi A, Gorham P, Gouffon P, Grebe S, Griffith N, Grillo AF, Grubb TD, Guarino F, Guedes GP, Hampel MR, Hansen P, Harari D, Harrison TA, Hartmann S, Harton JL, Haungs A, Hebbeker T, Heck D, Heimann P, Herve AE, Hill GC, Hojvat C, Hollon N, Holt E, Homola P, Hörandel JR, Horvath P, Hrabovský M, Huber D, Huege T, Insolia A, Isar PG, Jandt I, Jansen S, Jarne C, Josebachuili M, Kääpä A, Kambeitz O, Kampert KH, Kasper P, Katkov I, Kégl B, Keilhauer B, Keivani A, Kemp E, Kieckhafer RM, Klages HO, Kleifges M, Kleinfeller J, Krause R, Krohm N, Krömer O, Kruppke-Hansen D, Kuempel D, Kunka N, LaHurd D, Latronico L, Lauer R, Lauscher M, Lautridou P, Coz SL, Leão MSAB, Lebrun D, Lebrun P, Oliveira MALD, Letessier-Selvon A, Lhenry-Yvon I, Link K, López R, Agüera AL, Louedec K, Bahilo JL, Lu L, Lucero A, Ludwig M, Malacari M, Maldera S, Mallamaci M, Maller J, Mandat D, Mantsch P, Mariazzi AG, Marin V, Mariş IC, Marsella G, Martello D, Martin L, Martinez H, Bravo OM, Martraire D, Meza JJM, Mathes HJ, Mathys S, Matthews J, Matthews JAJ, Matthiae G, Maurel D, Maurizio D, Mayotte E, Mazur PO, Medina C, Medina-Tanco G, Meissner R, Melissas M, Melo D, Menshikov A, Messina S, Meyhandan R, Mićanović S, Micheletti MI, Middendorf L, Minaya IA, Miramonti L, Mitrica B, Molina-Bueno L, Mollerach S, Monasor M, Ragaigne DM, Montanet F, Morello C, Mostafá M, Moura CA, Muller MA, Müller G, Müller S, Münchmeyer M, Mussa R, Navarra G, Navas S, Necesal P, Nellen L, Nelles A, Neuser J, Nguyen P, Niechciol M, Niemietz L, Niggemann T, Nitz D, Nosek D, Novotny V, Nožka L, Ochilo L, Olinto A, Oliveira M, Pacheco N, Selmi-Dei DP, Palatka M, Pallotta J, Palmieri N, Papenbreer P, Parente G, Parra A, Paul T, Pech M, Pȩkala J, Pelayo R, Pepe IM, Perrone L, Petermann E, Peters C, Petrera S, Petrov Y, Phuntsok J, Piegaia R, Pierog T, Pieroni P, Pimenta M, Pirronello V, Platino M, Plum M, Porcelli A, Porowski C, Prado RR, Privitera P, Prouza M, Purrello V, Quel EJ, Querchfeld S, Quinn S, Rautenberg J, Ravel O, Ravignani D, Revenu B, Ridky J, Riggi S, Risse M, Ristori P, Rizi V, Carvalho WRD, Cabo IR, Fernandez GR, Rojo JR, Rodríguez-Frías MD, Rogozin D, Ros G, Rosado J, Rossler T, Roth M, Roulet E, Rovero AC, Saffi SJ, Saftoiu A, Salamida F, Salazar H, Saleh A, Greus FS, Salina G, Sánchez F, Sanchez-Lucas P, Santo CE, Santos E, Santos EM, Sarazin F, Sarkar B, Sarmento R, Sato R, Scharf N, Scherini V, Schieler H, Schiffer P, Schmidt D, Schröder FG, Scholten O, Schoorlemmer H, Schovánek P, Schulz A, Schulz J, Schumacher J, Sciutto SJ, Segreto A, Settimo M, Shadkam A, Shellard RC, Sidelnik I, Sigl G, Sima O, kowski AŚ, Šmída R, Snow GR, Sommers P, Sorokin J, Squartini R, Srivastava YN, Stanič S, Stapleton J, Stasielak J, Stephan M, Stutz A, Suarez F, Suomijärvi T, Supanitsky AD, Sutherland MS, Swain J, Szadkowski Z, Szuba M, Taborda OA, Tapia A, Tartare M, Tepe A, Theodoro VM, Timmermans C, Peixoto CJT, Toma G, Tomankova L, Tomé B, Tonachini A, Elipe GT, Machado DT, Travnicek P, Trovato E, Tueros M, Ulrich R, Unger M, Urban M, Galicia JFV, Valiño I, Valore L, Aar GV, Bodegom PV, Berg AMVD, Velzen SV, Vliet AV, Varela E, Vargas Cárdenas B, Varner G, Vázquez JR, Vázquez RA, Veberič D, Verzi V, Vicha J, Videla M, Villaseñor L, Vlcek B, Vorobiov S, Wahlberg H, Wainberg O, Walz D, Watson AA, Weber M, Weidenhaupt K, Weindl A, Werner F, Widom A, Wiencke L, Wilczyńska B, Wilczyński H, Will M, Williams C, Winchen T, Wittkowski D, Wundheiler B, Wykes S, Yamamoto T, Yapici T, Yuan G, Yushkov A, Zamorano B, Zas E, Zavrtanik D, Zavrtanik M, Zaw I, Zepeda A, Zhou J, Zhu Y, Silva MZ, Ziolkowski M, Zuccarello F. Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory. Eur Phys J C Part Fields 2015; 75:269. [PMID: 26120280 PMCID: PMC4477714 DOI: 10.1140/epjc/s10052-015-3471-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 05/20/2015] [Indexed: 06/04/2023]
Abstract
Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with [Formula: see text] eV by analyzing cosmic rays with energies above [Formula: see text] eV arriving within an angular separation of approximately 15[Formula: see text]. We characterize the energy distributions inside these regions by two independent methods, one searching for angular dependence of energy-energy correlations and one searching for collimation of energy along the local system of principal axes of the energy distribution. No significant patterns are found with this analysis. The comparison of these measurements with astrophysical scenarios can therefore be used to obtain constraints on related model parameters such as strength of cosmic-ray deflection and density of point sources.
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Affiliation(s)
- A. Aab
- />Universität Siegen, Siegen, Germany
| | - P. Abreu
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - M. Aglietta
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | | | - I. Al Samarai
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | | | - I. Allekotte
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - J. Allen
- />New York University, New York, NY USA
| | - P. Allison
- />Ohio State University, Columbus, OH USA
| | - A. Almela
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
- />Universidad Tecnológica Nacional - Facultad Regional Buenos Aires, Buenos Aires, Argentina
| | | | - J. Alvarez-Muñiz
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | | | - M. Ambrosio
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - A. Aminaei
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | - L. Anchordoqui
- />Department of Physics and Astronomy, City University of New York, New York, USA
| | - S. Andringa
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - C. Aramo
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - V. M. Aranda
- />Universidad Complutense de Madrid, Madrid, Spain
| | - F. Arqueros
- />Universidad Complutense de Madrid, Madrid, Spain
| | - H. Asorey
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - P. Assis
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - J. Aublin
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - M. Ave
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - M. Avenier
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - G. Avila
- />Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina
| | - N. Awal
- />New York University, New York, NY USA
| | - A. M. Badescu
- />University Politehnica of Bucharest, Bucharest, Romania
| | - K. B. Barber
- />University of Adelaide, Adelaide, SA Australia
| | - J. Bäuml
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - C. Baus
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | | | - K. H. Becker
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | | | - C. Berat
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - M. E. Bertaina
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - X. Bertou
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - P. L. Biermann
- />Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - P. Billoir
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - S. Blaess
- />University of Adelaide, Adelaide, SA Australia
| | - M. Blanco
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - C. Bleve
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - H. Blümer
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Boháčová
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - D. Boncioli
- />INFN, Laboratori Nazionali del Gran Sasso, Assergi, L’Aquila Italy
| | - C. Bonifazi
- />Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - R. Bonino
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - N. Borodai
- />Institute of Nuclear Physics PAN, Krakow, Poland
| | - J. Brack
- />Colorado State University, Fort Collins, CO USA
| | - I. Brancus
- />’Horia Hulubei’ National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
| | - A. Bridgeman
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - P. Brogueira
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | | | | | - A. Bueno
- />Universidad de Granada and C.A.F.P.E., Granada, Spain
| | - S. Buitink
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | - M. Buscemi
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - K. S. Caballero-Mora
- />Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV), Mexico, Mexico
| | - B. Caccianiga
- />Università di Milano and Sezione INFN, Milan, Italy
| | - L. Caccianiga
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - M. Candusso
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
| | - L. Caramete
- />Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - R. Caruso
- />Università di Catania and Sezione INFN, Catania, Italy
| | - A. Castellina
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - G. Cataldi
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - L. Cazon
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - R. Cester
- />Università di Torino and Sezione INFN, Torino, Italy
| | - A. G. Chavez
- />Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan Mexico
| | - A. Chiavassa
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | | | - J. Chudoba
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - M. Cilmo
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - R. W. Clay
- />University of Adelaide, Adelaide, SA Australia
| | - G. Cocciolo
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - R. Colalillo
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - A. Coleman
- />Pennsylvania State University, University Park, PA USA
| | - L. Collica
- />Università di Milano and Sezione INFN, Milan, Italy
| | - M. R. Coluccia
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - R. Conceição
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - F. Contreras
- />Observatorio Pierre Auger, Malargüe, Argentina
| | - M. J. Cooper
- />University of Adelaide, Adelaide, SA Australia
| | - A. Cordier
- />Laboratoire de l’Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - S. Coutu
- />Pennsylvania State University, University Park, PA USA
| | - C. E. Covault
- />Case Western Reserve University, Cleveland, OH USA
| | - J. Cronin
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - A. Curutiu
- />Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - R. Dallier
- />Station de Radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU, Nançay, France
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - B. Daniel
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | - S. Dasso
- />Departamento de Física, FCEyN Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
- />Instituto de Astronomía y Física del Espacio (CONICET-UBA), Buenos Aires, Argentina
| | - K. Daumiller
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - B. R. Dawson
- />University of Adelaide, Adelaide, SA Australia
| | - R. M. de Almeida
- />Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ Brazil
| | - M. De Domenico
- />Università di Catania and Sezione INFN, Catania, Italy
| | - S. J. de Jong
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | - J. R. T. de Mello Neto
- />Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - I. De Mitri
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - J. de Oliveira
- />Universidade Federal Fluminense, EEIMVR, Volta Redonda, RJ Brazil
| | - V. de Souza
- />Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP Brazil
| | - L. del Peral
- />Universidad de Alcalá, Alcalá de Henares, Madrid Spain
| | - O. Deligny
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - H. Dembinski
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - N. Dhital
- />Michigan Technological University, Houghton, MI USA
| | - C. Di Giulio
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
| | - A. Di Matteo
- />Dipartimento di Scienze Fisiche e Chimiche dell’Università dell’Aquila and INFN, L’Aquila, Italy
| | - J. C. Diaz
- />Michigan Technological University, Houghton, MI USA
| | | | - F. Diogo
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - C. Dobrigkeit
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | - W. Docters
- />KVI - Center for Advanced Radiation Technology, University of Groningen, Groningen, Netherlands
| | - J. C. D’Olivo
- />Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico
| | - A. Dorofeev
- />Colorado State University, Fort Collins, CO USA
| | - Q. Dorosti Hasankiadeh
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. T. Dova
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - J. Ebr
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - R. Engel
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Erdmann
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - M. Erfani
- />Universität Siegen, Siegen, Germany
| | - C. O. Escobar
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
- />Fermilab, Batavia, IL USA
| | - J. Espadanal
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - A. Etchegoyen
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
- />Universidad Tecnológica Nacional - Facultad Regional Buenos Aires, Buenos Aires, Argentina
| | | | - H. Falcke
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
- />ASTRON, Dwingeloo, Netherlands
| | - K. Fang
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - G. Farrar
- />New York University, New York, NY USA
| | - A. C. Fauth
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | | | | | - M. Fernandes
- />Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - B. Fick
- />Michigan Technological University, Houghton, MI USA
| | - J. M. Figueira
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - A. Filevich
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - A. Filipčič
- />Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | - B. D. Fox
- />University of Hawaii, Honolulu, HI USA
| | - O. Fratu
- />University Politehnica of Bucharest, Bucharest, Romania
| | | | - B. Fuchs
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - T. Fujii
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - R. Gaior
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - B. García
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM) and National Technological University, Faculty Mendoza (CONICET/CNEA), Mendoza, Argentina
| | - S. T. Garcia Roca
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - D. Garcia-Gamez
- />Laboratoire de l’Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France
| | | | - G. Garilli
- />Università di Catania and Sezione INFN, Catania, Italy
| | | | - F. Gate
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - H. Gemmeke
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | - P. L. Ghia
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - U. Giaccari
- />Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - M. Giammarchi
- />Università di Milano and Sezione INFN, Milan, Italy
| | | | - C. Glaser
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | | | - M. Gómez Berisso
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - P. F. Gómez Vitale
- />Observatorio Pierre Auger and Comisión Nacional de Energía Atómica, Malargüe, Argentina
| | - P. Gonçalves
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - J. G. Gonzalez
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - N. González
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - B. Gookin
- />Colorado State University, Fort Collins, CO USA
| | - J. Gordon
- />Ohio State University, Columbus, OH USA
| | - A. Gorgi
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - P. Gorham
- />University of Hawaii, Honolulu, HI USA
| | - P. Gouffon
- />Instituto de Física, Universidade de São Paulo, São Paulo, SP Brazil
| | - S. Grebe
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | | | - A. F. Grillo
- />INFN, Laboratori Nazionali del Gran Sasso, Assergi, L’Aquila Italy
| | - T. D. Grubb
- />University of Adelaide, Adelaide, SA Australia
| | - F. Guarino
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - G. P. Guedes
- />Universidade Estadual de Feira de Santana, Feira de Santana, Brazil
| | - M. R. Hampel
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - P. Hansen
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - D. Harari
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | | | - S. Hartmann
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - J. L. Harton
- />Colorado State University, Fort Collins, CO USA
| | - A. Haungs
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - T. Hebbeker
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - D. Heck
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | | | - A. E. Herve
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - G. C. Hill
- />University of Adelaide, Adelaide, SA Australia
| | | | - N. Hollon
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - E. Holt
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - P. Homola
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - J. R. Hörandel
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | - P. Horvath
- />Palacky University, RCPTM, Olomouc, Czech Republic
| | - M. Hrabovský
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
- />Palacky University, RCPTM, Olomouc, Czech Republic
| | - D. Huber
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - T. Huege
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - A. Insolia
- />Università di Catania and Sezione INFN, Catania, Italy
| | - P. G. Isar
- />Institute of Space Sciences, Bucharest-Magurele, Romania
| | - I. Jandt
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - S. Jansen
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | - C. Jarne
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - M. Josebachuili
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - A. Kääpä
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - O. Kambeitz
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - K. H. Kampert
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | | | - I. Katkov
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - B. Kégl
- />Laboratoire de l’Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - B. Keilhauer
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - A. Keivani
- />Pennsylvania State University, University Park, PA USA
| | - E. Kemp
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | | | - H. O. Klages
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Kleifges
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | | | - R. Krause
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - N. Krohm
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - O. Krömer
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | | | - D. Kuempel
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - N. Kunka
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | - D. LaHurd
- />Case Western Reserve University, Cleveland, OH USA
| | - L. Latronico
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - R. Lauer
- />University of New Mexico, Albuquerque, NM USA
| | - M. Lauscher
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - P. Lautridou
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - S. Le Coz
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - M. S. A. B. Leão
- />Faculdade Independente do Nordeste, Vitória da Conquista, Brazil
| | - D. Lebrun
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | | | | | - A. Letessier-Selvon
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - I. Lhenry-Yvon
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - K. Link
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - R. López
- />Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - A. Lopez Agüera
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - K. Louedec
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | | | - L. Lu
- />Bergische Universität Wuppertal, Wuppertal, Germany
- />School of Physics and Astronomy, University of Leeds, Leeds, UK
| | - A. Lucero
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - M. Ludwig
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - M. Malacari
- />University of Adelaide, Adelaide, SA Australia
| | - S. Maldera
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - M. Mallamaci
- />Università di Milano and Sezione INFN, Milan, Italy
| | - J. Maller
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - D. Mandat
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | | | - A. G. Mariazzi
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - V. Marin
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - I. C. Mariş
- />Universidad de Granada and C.A.F.P.E., Granada, Spain
| | - G. Marsella
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - D. Martello
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - L. Martin
- />Station de Radioastronomie de Nançay, Observatoire de Paris, CNRS/INSU, Nançay, France
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - H. Martinez
- />Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV), Mexico, Mexico
| | | | - D. Martraire
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - J. J. Masías Meza
- />Departamento de Física, FCEyN Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
| | - H. J. Mathes
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - S. Mathys
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - J. Matthews
- />Louisiana State University, Baton Rouge, LA USA
| | | | - G. Matthiae
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
| | - D. Maurel
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - D. Maurizio
- />Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ Brazil
| | - E. Mayotte
- />Colorado School of Mines, Golden, CO USA
| | | | - C. Medina
- />Colorado School of Mines, Golden, CO USA
| | - G. Medina-Tanco
- />Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico
| | - R. Meissner
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - M. Melissas
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - D. Melo
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - A. Menshikov
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | - S. Messina
- />KVI - Center for Advanced Radiation Technology, University of Groningen, Groningen, Netherlands
| | | | - S. Mićanović
- />Rudjer Bošković Institute, 10000 Zagreb, Croatia
| | - M. I. Micheletti
- />Instituto de Física de Rosario (IFIR), CONICET/U.N.R. and Facultad de Ciencias Bioquímicas y Farmacéuticas U.N.R., Rosario, Argentina
| | - L. Middendorf
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - I. A. Minaya
- />Universidad Complutense de Madrid, Madrid, Spain
| | - L. Miramonti
- />Università di Milano and Sezione INFN, Milan, Italy
| | - B. Mitrica
- />’Horia Hulubei’ National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
| | | | - S. Mollerach
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - M. Monasor
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - D. Monnier Ragaigne
- />Laboratoire de l’Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - F. Montanet
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - C. Morello
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - M. Mostafá
- />Pennsylvania State University, University Park, PA USA
| | - C. A. Moura
- />Universidade Federal do ABC, Santo André, SP Brazil
| | - M. A. Muller
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
- />Universidade Federal de Pelotas, Pelotas, RS Brazil
| | - G. Müller
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - S. Müller
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Münchmeyer
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - R. Mussa
- />Università di Torino and Sezione INFN, Torino, Italy
| | - G. Navarra
- />Osservatorio Astrofisico di Torino (INAF), Università di Torino and Sezione INFN, Torino, Italy
| | - S. Navas
- />Universidad de Granada and C.A.F.P.E., Granada, Spain
| | - P. Necesal
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - L. Nellen
- />Universidad Nacional Autonoma de Mexico, Mexico, D.F., Mexico
| | - A. Nelles
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | - J. Neuser
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - P. Nguyen
- />University of Adelaide, Adelaide, SA Australia
| | | | - L. Niemietz
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - T. Niggemann
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - D. Nitz
- />Michigan Technological University, Houghton, MI USA
| | - D. Nosek
- />Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Charles University, Prague, Czech Republic
| | - V. Novotny
- />Faculty of Mathematics and Physics, Institute of Particle and Nuclear Physics, Charles University, Prague, Czech Republic
| | - L. Nožka
- />Palacky University, RCPTM, Olomouc, Czech Republic
| | - L. Ochilo
- />Universität Siegen, Siegen, Germany
| | - A. Olinto
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - M. Oliveira
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - N. Pacheco
- />Universidad de Alcalá, Alcalá de Henares, Madrid Spain
| | | | - M. Palatka
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - J. Pallotta
- />Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF and CONICET, Villa Martelli, Buenos Aires, Argentina
| | - N. Palmieri
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - P. Papenbreer
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - G. Parente
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - A. Parra
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - T. Paul
- />Department of Physics and Astronomy, City University of New York, New York, USA
- />Northeastern University, Boston, MA USA
| | - M. Pech
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - J. Pȩkala
- />Institute of Nuclear Physics PAN, Krakow, Poland
| | - R. Pelayo
- />Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - I. M. Pepe
- />Universidade Federal da Bahia, Salvador, BA Brazil
| | - L. Perrone
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | | | - C. Peters
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - S. Petrera
- />Dipartimento di Scienze Fisiche e Chimiche dell’Università dell’Aquila and INFN, L’Aquila, Italy
- />Gran Sasso Science Institute (INFN), L’Aquila, Italy
| | - Y. Petrov
- />Colorado State University, Fort Collins, CO USA
| | - J. Phuntsok
- />Pennsylvania State University, University Park, PA USA
| | - R. Piegaia
- />Departamento de Física, FCEyN Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
| | - T. Pierog
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - P. Pieroni
- />Departamento de Física, FCEyN Universidad de Buenos Aires y CONICET, Buenos Aires, Argentina
| | - M. Pimenta
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - V. Pirronello
- />Università di Catania and Sezione INFN, Catania, Italy
| | - M. Platino
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - M. Plum
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - A. Porcelli
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - C. Porowski
- />Institute of Nuclear Physics PAN, Krakow, Poland
| | - R. R. Prado
- />Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP Brazil
| | - P. Privitera
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - M. Prouza
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - V. Purrello
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - E. J. Quel
- />Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF and CONICET, Villa Martelli, Buenos Aires, Argentina
| | - S. Querchfeld
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - S. Quinn
- />Case Western Reserve University, Cleveland, OH USA
| | - J. Rautenberg
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - O. Ravel
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - D. Ravignani
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - B. Revenu
- />SUBATECH, École des Mines de Nantes, CNRS-IN2P3, Université de Nantes, Nantes, France
| | - J. Ridky
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - S. Riggi
- />Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - M. Risse
- />Universität Siegen, Siegen, Germany
| | - P. Ristori
- />Centro de Investigaciones en Láseres y Aplicaciones, CITEDEF and CONICET, Villa Martelli, Buenos Aires, Argentina
| | - V. Rizi
- />Dipartimento di Scienze Fisiche e Chimiche dell’Università dell’Aquila and INFN, L’Aquila, Italy
| | | | - I. Rodriguez Cabo
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - G. Rodriguez Fernandez
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | | | | | - D. Rogozin
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - G. Ros
- />Universidad de Alcalá, Alcalá de Henares, Madrid Spain
| | - J. Rosado
- />Universidad Complutense de Madrid, Madrid, Spain
| | - T. Rossler
- />Palacky University, RCPTM, Olomouc, Czech Republic
| | - M. Roth
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - E. Roulet
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - A. C. Rovero
- />Instituto de Astronomía y Física del Espacio (CONICET-UBA), Buenos Aires, Argentina
| | - S. J. Saffi
- />University of Adelaide, Adelaide, SA Australia
| | - A. Saftoiu
- />’Horia Hulubei’ National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
| | - F. Salamida
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - H. Salazar
- />Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - A. Saleh
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | | | - G. Salina
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
| | - F. Sánchez
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | | | - C. E. Santo
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - E. Santos
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | - E. M. Santos
- />Instituto de Física, Universidade de São Paulo, São Paulo, SP Brazil
| | - F. Sarazin
- />Colorado School of Mines, Golden, CO USA
| | - B. Sarkar
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - R. Sarmento
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - R. Sato
- />Observatorio Pierre Auger, Malargüe, Argentina
| | - N. Scharf
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - V. Scherini
- />Dipartimento di Matematica e Fisica “E. De Giorgi” dell’Università del Salento and Sezione INFN, Lecce, Italy
| | - H. Schieler
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | | | - D. Schmidt
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - F. G. Schröder
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - O. Scholten
- />KVI - Center for Advanced Radiation Technology, University of Groningen, Groningen, Netherlands
| | - H. Schoorlemmer
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
- />University of Hawaii, Honolulu, HI USA
| | - P. Schovánek
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - A. Schulz
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - J. Schulz
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | - J. Schumacher
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - S. J. Sciutto
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - A. Segreto
- />Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo (INAF), Palermo, Italy
| | - M. Settimo
- />Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), Universités Paris 6 et Paris 7, CNRS-IN2P3, Paris, France
| | - A. Shadkam
- />Louisiana State University, Baton Rouge, LA USA
| | - R. C. Shellard
- />Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ Brazil
| | - I. Sidelnik
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - G. Sigl
- />Universität Hamburg, Hamburg, Germany
| | - O. Sima
- />Physics Department, University of Bucharest, Bucharest, Romania
| | | | - R. Šmída
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - G. R. Snow
- />University of Nebraska, Lincoln, NE USA
| | - P. Sommers
- />Pennsylvania State University, University Park, PA USA
| | - J. Sorokin
- />University of Adelaide, Adelaide, SA Australia
| | - R. Squartini
- />Observatorio Pierre Auger, Malargüe, Argentina
| | | | - S. Stanič
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | | | - J. Stasielak
- />Institute of Nuclear Physics PAN, Krakow, Poland
| | - M. Stephan
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - A. Stutz
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - F. Suarez
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - T. Suomijärvi
- />Institut de Physique Nucléaire d’Orsay (IPNO), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - A. D. Supanitsky
- />Instituto de Astronomía y Física del Espacio (CONICET-UBA), Buenos Aires, Argentina
| | | | - J. Swain
- />Northeastern University, Boston, MA USA
| | | | - M. Szuba
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - O. A. Taborda
- />Centro Atómico Bariloche and Instituto Balseiro (CNEA-UNCuyo-CONICET), San Carlos de Bariloche, Argentina
| | - A. Tapia
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - M. Tartare
- />Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Grenoble-Alpes, CNRS/IN2P3, Grenoble, France
| | - A. Tepe
- />Universität Siegen, Siegen, Germany
| | - V. M. Theodoro
- />Universidade Estadual de Campinas, IFGW, Campinas, SP Brazil
| | - C. Timmermans
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
- />Nikhef, Science Park, Amsterdam, Netherlands
| | | | - G. Toma
- />’Horia Hulubei’ National Institute for Physics and Nuclear Engineering, Bucharest-Magurele, Romania
| | - L. Tomankova
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - B. Tomé
- />Laboratório de Instrumentação e Física Experimental de Partículas - LIP and Instituto Superior Técnico - IST, Universidade de Lisboa - UL, Lisbon, Portugal
| | - A. Tonachini
- />Università di Torino and Sezione INFN, Torino, Italy
| | - G. Torralba Elipe
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - D. Torres Machado
- />Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ Brazil
| | - P. Travnicek
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - E. Trovato
- />Università di Catania and Sezione INFN, Catania, Italy
| | - M. Tueros
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - R. Ulrich
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Unger
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - M. Urban
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | | | - I. Valiño
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - L. Valore
- />Università di Napoli “Federico II” and Sezione INFN, Napoli, Italy
| | - G. van Aar
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | | | - A. M. van den Berg
- />KVI - Center for Advanced Radiation Technology, University of Groningen, Groningen, Netherlands
| | - S. van Velzen
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | | | - E. Varela
- />Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - G. Varner
- />University of Hawaii, Honolulu, HI USA
| | | | - R. A. Vázquez
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - D. Veberič
- />Laboratoire de l’Accélérateur Linéaire (LAL), Université Paris 11, CNRS-IN2P3, Orsay, France
| | - V. Verzi
- />Università di Roma II “Tor Vergata” and Sezione INFN, Roma, Italy
| | - J. Vicha
- />Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - M. Videla
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - L. Villaseñor
- />Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Michoacan Mexico
| | - B. Vlcek
- />Universidad de Alcalá, Alcalá de Henares, Madrid Spain
| | - S. Vorobiov
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | - H. Wahlberg
- />IFLP, Universidad Nacional de La Plata and CONICET, La Plata, Argentina
| | - O. Wainberg
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
- />Universidad Tecnológica Nacional - Facultad Regional Buenos Aires, Buenos Aires, Argentina
| | - D. Walz
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - A. A. Watson
- />School of Physics and Astronomy, University of Leeds, Leeds, UK
| | - M. Weber
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | - K. Weidenhaupt
- />RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany
| | - A. Weindl
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - F. Werner
- />Karlsruhe Institute of Technology - Campus South - Institut für Experimentelle, Kernphysik (IEKP), Karlsruhe, Germany
| | - A. Widom
- />Northeastern University, Boston, MA USA
| | - L. Wiencke
- />Colorado School of Mines, Golden, CO USA
| | | | | | - M. Will
- />Karlsruhe Institute of Technology - Campus North - Institut für Kernphysik, Karlsruhe, Germany
| | - C. Williams
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - T. Winchen
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - D. Wittkowski
- />Bergische Universität Wuppertal, Wuppertal, Germany
| | - B. Wundheiler
- />Instituto de Tecnologías en Detección y Astropartículas (CNEA, CONICET, UNSAM), Buenos Aires, Argentina
| | - S. Wykes
- />IMAPP, Radboud University Nijmegen, Nijmegen, Netherlands
| | - T. Yamamoto
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - T. Yapici
- />Michigan Technological University, Houghton, MI USA
| | - G. Yuan
- />Louisiana State University, Baton Rouge, LA USA
| | | | - B. Zamorano
- />Universidad de Granada and C.A.F.P.E., Granada, Spain
| | - E. Zas
- />Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - D. Zavrtanik
- />Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | - M. Zavrtanik
- />Experimental Particle Physics Department, J. Stefan Institute, Ljubljana, Slovenia
- />Laboratory for Astroparticle Physics, University of Nova Gorica, Nova Gorica, Slovenia
| | - I. Zaw
- />New York University, New York, NY USA
| | - A. Zepeda
- />Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV), Mexico, Mexico
| | - J. Zhou
- />Enrico Fermi Institute, University of Chicago, Chicago, IL USA
| | - Y. Zhu
- />Karlsruhe Institute of Technology - Campus North - Institut für Prozessdatenverarbeitung und Elektronik, Karlsruhe, Germany
| | | | | | - F. Zuccarello
- />Università di Catania and Sezione INFN, Catania, Italy
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7
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Aab A, Abreu P, Aglietta M, Ahn E, Al Samarai I, Albuquerque I, Allekotte I, Allen J, Allison P, Almela A, Alvarez Castillo J, Alvarez-Muñiz J, Alves Batista R, Ambrosio M, Aminaei A, Anchordoqui L, Andringa S, Aramo C, Aranda V, Arqueros F, Asorey H, Assis P, Aublin J, Ave M, Avenier M, Avila G, Badescu A, Barber K, Bäuml J, Baus C, Beatty J, Becker K, Bellido J, Berat C, Bertaina M, Bertou X, Biermann P, Billoir P, Blanco M, Bleve C, Blümer H, Boháčová M, Boncioli D, Bonifazi C, Bonino R, Borodai N, Brack J, Brancus I, Brogueira P, Brown W, Buchholz P, Bueno A, Buitink S, Buscemi M, Caballero-Mora K, Caccianiga B, Caccianiga L, Candusso M, Caramete L, Caruso R, Castellina A, Cataldi G, Cazon L, Cester R, Chavez A, Chiavassa A, Chinellato J, Chudoba J, Cilmo M, Clay R, Cocciolo G, Colalillo R, Coleman A, Collica L, Coluccia M, Conceição R, Contreras F, Cooper M, Cordier A, Coutu S, Covault C, Cronin J, Curutiu A, Dallier R, Daniel B, Dasso S, Daumiller K, Dawson B, de Almeida R, De Domenico M, de Jong S, de Mello Neto J, De 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, Díaz Castro M, Diogo F, Dobrigkeit C, Docters W, D’Olivo J, Dorofeev A, Dorosti Hasankiadeh Q, Dova M, Ebr J, Engel R, Erdmann M, Erfani M, Escobar C, Espadanal J, Etchegoyen A, Facal San Luis P, Falcke H, Fang K, Farrar G, Fauth A, Fazzini N, Ferguson A, Fernandes M, Fick B, Figueira J, Filevich A, Filipčič A, Fox B, Fratu O, Fröhlich U, Fuchs B, Fujii T, Gaior R, García B, Garcia Roca S, Garcia-Gamez D, Garcia-Pinto D, Garilli G, Gascon Bravo A, Gate F, Gemmeke H, Ghia P, Giaccari U, Giammarchi M, Giller M, Glaser C, Glass H, Gómez Berisso M, Gómez Vitale P, Gonçalves P, Gonzalez J, González N, Gookin B, Gordon J, Gorgi A, Gorham P, Gouffon P, Grebe S, Griffith N, Grillo A, Grubb T, Guardincerri Y, Guarino F, Guedes G, Hampel M, Hansen P, Harari D, Harrison T, Hartmann S, Harton J, Haungs A, Hebbeker T, Heck D, Heimann P, Herve A, Hill G, Hojvat C, Hollon N, Holt E, Homola P, Hörandel J, Horvath P, Hrabovský M, Huber D, Huege T, Insolia A, Isar P, Islo K, Jandt I, Jansen S, Jarne C, Josebachuili M, Kääpä A, Kambeitz O, Kampert K, Kasper P, Katkov I, Kégl B, Keilhauer B, Keivani A, Kemp E, Kieckhafer R, Klages H, Kleifges M, Kleinfeller J, Krause R, Krohm N, Krömer O, Kruppke-Hansen D, Kuempel D, Kunka N, LaHurd D, Latronico L, Lauer R, Lauscher M, Lautridou P, Le Coz S, Leão M, Lebrun D, Lebrun P, Leigui de Oliveira M, Letessier-Selvon A, Lhenry-Yvon I, Link K, López R, Louedec K, Lozano Bahilo J, Lu L, Lucero A, Ludwig M, Malacari M, Maldera S, Mallamaci M, Maller J, Mandat D, Mantsch P, Mariazzi A, Marin V, Mariş I, Marsella G, Martello D, Martin L, Martinez H, Martínez Bravo O, Martraire D, Masías Meza J, Mathes H, Mathys S, Matthews J, Matthews J, Matthiae G, Maurel D, Maurizio D, Mayotte E, Mazur P, Medina C, Medina-Tanco G, Melissas M, Melo D, Menshikov A, Messina S, Meyhandan R, Mićanović S, Micheletti M, Middendorf L, Minaya I, Miramonti L, Mitrica B, Molina-Bueno L, Mollerach S, Monasor M, Monnier Ragaigne D, Montanet F, Morello C, Mostafá M, Moura C, Muller M, Müller G, Münchmeyer M, Mussa R, Navarra G, Navas S, Necesal P, Nellen L, Nelles A, Neuser J, Newton D, Niechciol M, Niemietz L, Niggemann T, Nitz D, Nosek D, Novotny V, Nožka L, Ochilo L, Olinto A, Oliveira M, Olmos-Gilbaja V, Pacheco N, Pakk Selmi-Dei D, Palatka M, Pallotta J, Palmieri N, Papenbreer P, Parente G, Parra A, Paul T, Pech M, Pękala J, Pelayo R, Pepe I, Perrone L, Petermann E, Peters C, Petrera S, Petrov Y, Phuntsok J, Piegaia R, Pierog T, Pieroni P, Pimenta M, Pirronello V, Platino M, Plum M, Porcelli A, Porowski C, Prado R, Privitera P, Prouza M, Purrello V, Quel E, Querchfeld S, Quinn S, Rautenberg J, Ravel O, Ravignani D, Revenu B, Ridky J, Riggi S, Risse M, Ristori P, Rizi V, Roberts J, Rodrigues de Carvalho W, Rodriguez Fernandez G, Rodriguez Rojo J, Rodríguez-Frías M, Ros G, Rosado J, Rossler T, Roth M, Roulet E, Rovero A, Saffi S, Saftoiu A, Salamida F, Salazar H, Saleh A, Salesa Greus F, Salina G, Sánchez F, Sanchez-Lucas P, Santo C, Santos E, Santos E, Sarazin F, Sarkar B, Sarmento R, Sato R, Scharf N, Scherini V, Schieler H, Schiffer P, Scholten O, Schoorlemmer H, Schovánek P, Schröder F, Schulz A, Schulz J, Schumacher J, Sciutto S, Segreto A, Settimo M, Shadkam A, Shellard R, Sidelnik I, Sigl G, Sima O, Śmiałkowski A, Šmída R, Snow G, Sommers P, Sorokin J, Squartini R, Srivastava Y, Stanič S, Stapleton J, Stasielak J, Stephan M, Stutz A, Suarez F, Suomijärvi T, Supanitsky A, Sutherland M, Swain J, Szadkowski Z, Szuba M, Taborda O, Tapia A, Tartare M, Tepe A, Theodoro V, Timmermans C, Todero Peixoto C, Toma G, Tomankova L, Tomé B, Tonachini A, Torralba Elipe G, Torres Machado D, Travnicek P, Trovato E, Ulrich R, Unger M, Urban M, Valdés Galicia J, Valiño I, Valore L, van Aar G, van den Berg A, van Velzen S, van Vliet A, Varela E, Vargas Cárdenas B, Varner G, Vázquez J, Vázquez R, Veberič D, Verzi V, Vicha J, Videla M, Villaseñor L, Vlcek B, Vorobiov S, Wahlberg H, Wainberg O, Walz D, Watson A, Weber M, Weidenhaupt K, Weindl A, Werner F, 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, Zimbres Silva M, Ziolkowski M, Zuccarello F. Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.032003] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Smída R, Werner F, Engel R, Arteaga-Velázquez JC, Bekk K, Bertaina M, Blümer J, Bozdog H, Brancus IM, Chiavassa A, Cossavella F, Di Pierro F, Doll P, Fuchs B, Fuhrmann D, Grupen C, Haungs A, Heck D, Hörandel JR, Huber D, Huege T, Kampert KH, Kang D, Klages H, Kleifges M, Krömer O, Link K, Luczak P, Ludwig M, Mathes HJ, Mathys S, Mayer HJ, Melissas M, Morello C, Neunteufel P, Oehlschläger J, Palmieri N, Pekala J, Pierog T, Rautenberg J, Rebel H, Riegel M, Roth M, Salamida F, Schieler H, Schoo S, Schröder FG, Sima O, Stasielak J, Toma G, Trinchero GC, Unger M, Weber M, Weindl A, Wilczyński H, Will M, Wochele J, Zabierowski J. First Experimental Characterization of Microwave Emission from Cosmic Ray Air Showers. Phys Rev Lett 2014; 113:221101. [PMID: 25494064 DOI: 10.1103/physrevlett.113.221101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Indexed: 06/04/2023]
Abstract
We report the first direct measurement of the overall characteristics of microwave radio emission from extensive air showers. Using a trigger provided by the KASCADE-Grande air shower array, the signals of the microwave antennas of the Cosmic-Ray Observation via Microwave Emission experiment have been read out and searched for signatures of radio emission by high-energy air showers in the GHz frequency range. Microwave signals have been detected for more than 30 showers with energies above 3×10^{16} eV. The observations presented in this Letter are consistent with a mainly forward-directed and polarized emission process in the GHz frequency range. The measurements show that microwave radiation offers a new means of studying air showers at E≥10^{17} eV.
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Affiliation(s)
- R Smída
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - F Werner
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - R Engel
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | | | - K Bekk
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Bertaina
- Università di Torino and Sezione INFN, 10125 Torino, Italy
| | - J Blümer
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - H Bozdog
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - I M Brancus
- National Institute of Physics and Nuclear Engineering, 76900 Bucharest, Romania
| | - A Chiavassa
- Università di Torino and Sezione INFN, 10125 Torino, Italy
| | - F Cossavella
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - F Di Pierro
- Università di Torino and Sezione INFN, 10125 Torino, Italy
| | - P Doll
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - B Fuchs
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - D Fuhrmann
- Bergische Universität Wuppertal, 42097 Wuppertal, Germany
| | - C Grupen
- Department of Physics, Siegen University, 57072 Germany
| | - A Haungs
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - D Heck
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J R Hörandel
- Department of Astrophysics, Radboud University Nijmegen, 6500 The Netherlands
| | - D Huber
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - T Huege
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - K-H Kampert
- Bergische Universität Wuppertal, 42097 Wuppertal, Germany
| | - D Kang
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - H Klages
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Kleifges
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - O Krömer
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - K Link
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - P Luczak
- Department of Astrophysics, National Centre for Nuclear Research, 90-950 Łódź, Poland
| | - M Ludwig
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - H J Mathes
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - S Mathys
- Bergische Universität Wuppertal, 42097 Wuppertal, Germany
| | - H J Mayer
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Melissas
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - C Morello
- Osservatorio Astrofisico di Torino, INAF 10133, Torino, Italy
| | - P Neunteufel
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J Oehlschläger
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - N Palmieri
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J Pekala
- Institute of Nuclear Physics PAN, 31-342 Krakow, Poland
| | - T Pierog
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J Rautenberg
- Bergische Universität Wuppertal, 42097 Wuppertal, Germany
| | - H Rebel
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Riegel
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Roth
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - F Salamida
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - H Schieler
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - S Schoo
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - F G Schröder
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - O Sima
- Department of Physics, University of Bucharest, 76900 Bucharest, Romania
| | - J Stasielak
- Institute of Nuclear Physics PAN, 31-342 Krakow, Poland
| | - G Toma
- National Institute of Physics and Nuclear Engineering, 76900 Bucharest, Romania
| | - G C Trinchero
- Osservatorio Astrofisico di Torino, INAF 10133, Torino, Italy
| | - M Unger
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - M Weber
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - A Weindl
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - H Wilczyński
- Institute of Nuclear Physics PAN, 31-342 Krakow, Poland
| | - M Will
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J Wochele
- Karlsruhe Institute of Technology (KIT), 76021 Karlsruhe, Germany
| | - J Zabierowski
- Department of Astrophysics, National Centre for Nuclear Research, 90-950 Łódź, Poland
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Apel W, Arteaga-Velazquez J, Bähren L, Bekk K, Bertaina M, Biermann P, Blümer J, Bozdog H, Brancus I, Cantoni E, Chiavassa A, Daumiller K, de Souza V, Di Pierro F, Doll P, Engel R, Falcke H, Fuchs B, Fuhrmann D, Gemmeke H, Grupen C, Haungs A, Heck D, Hörandel J, Horneffer A, Huber D, Huege T, Isar P, Kampert KH, Kang D, Krömer O, Kuijpers J, Link K, Łuczak P, Ludwig M, Mathes H, Melissas M, Morello C, Oehlschläger J, Palmieri N, Pierog T, Rautenberg J, Rebel H, Roth M, Rühle C, Saftoiu A, Schieler H, Schmidt A, Schröder F, Sima O, Toma G, Trinchero G, Weindl A, Wochele J, Zabierowski J, Zensus J. Reconstruction of the energy and depth of maximum of cosmic-ray air showers from LOPES radio measurements. Int J Clin Exp Med 2014. [DOI: 10.1103/physrevd.90.062001] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lätt S, Slavinskis A, Ilbis E, Kvell U, Voormansik K, Kulu E, Pajusalu M, Kuuste H, Sünter I, Eenmäe T, Laizans K, Zalite K, Vendt R, Piepenbrock J, Ansko I, Leitu A, Vahter A, Agu A, Eilonen E, Soolo E, Ehrpais H, Lillmaa H, Mahhonin I, Mõttus J, Viru J, Kalde J, Šubitidze J, Mucenieks J, Šate J, Kütt J, Poļevskis J, Laks J, Kivistik K, Kusmin KL, Kruus KG, Tarbe K, Tuude K, Kalniņa K, Joost L, Lõoke M, Järve M, Vellak M, Neerot M, Valgur M, Pelakauskas M, Averin M, Mikkor M, Veske M, Scheler O, Liias P, Laes P, Rantsus R, Soosaar R, Reinumägi R, Valner R, Kurvits S, Mändmaa SE, Ilves T, Peet T, Ani T, Tilk T, Tamm TC, Scheffler T, Vahter T, Uiboupin T, Evard V, Sisask A, Kimmel L, Krömer O, Rosta R, Janhunen P, Envall J, Toivanen P, Rauhala T, Seppänen H, Ukkonen J, Haeggström E, Kurppa R, Kalvas T, Tarvainen O, Kauppinen J, Nuottajärvi A, Koivisto H, Kiprich S, Obraztsov A, Allik V, Reinart A, Noorma M. ESTCube-1 nanosatellite for electric solar wind sail in-orbit technology demonstration. Proc Estonian Acad Sci 2014. [DOI: 10.3176/proc.2014.2s.01] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Šmída R, Baur S, Bertaina M, Blümer J, Chiavassa A, Engel R, Haungs A, Huege T, Kampert KH, Klages H, Kleifges M, Krömer O, Ludwig M, Mathys S, Neunteufel P, Pekala J, Rautenberg J, Riegel M, Roth M, Salamida F, Schieler H, Stasielak J, Unger M, Weber M, Werner F, Wilczyński H, Wochele J. Observation of microwave emission from extensive air showers with CROME. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135308010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Stasielak J, Baur S, Bertaina M, Blümer J, Chiavassa A, Engel R, Haungs A, Huege T, Kampert KH, Klages H, Kleifges M, Krömer O, Ludwig M, Mathys S, Neunteufel P, Pekala J, Rautenberg J, Riegel M, Roth M, Salamida F, Schieler H, Šmída R, Unger M, Weber M, Werner F, Wilczyński H, Wochele J. Radar reflection off extensive air showers. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20135308013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abreu P, Aglietta M, Ahn EJ, Albuquerque IFM, Allard D, Allekotte I, Allen J, Allison P, Almeda A, Alvarez Castillo J, Alvarez-Muñiz J, Ambrosio M, Aminaei A, Anchordoqui L, Andringa S, Antičić T, Aramo C, Arganda E, Arqueros F, Asorey H, Assis P, Aublin J, Ave M, Avenier M, Avila G, Bäcker T, Balzer M, Barber KB, Barbosa AF, Bardenet R, Barroso SLC, Baughman B, Bäuml J, Beatty JJ, Becker BR, Becker KH, Bellétoile A, Bellido JA, Benzvi S, Berat C, Bertou X, Biermann PL, Billoir P, Blanco F, Blanco M, Bleve C, Blümer H, Boháčová M, Boncioli D, Bonifazi C, Bonino R, Borodai N, Brack J, Brogueira P, Brown WC, Bruijn R, Buchholz P, Bueno A, Burton RE, Caballero-Mora KS, Caramete L, Caruso R, Castellina A, Catalano O, Cataldi G, Cazon L, Cester R, Chauvin J, Cheng SH, Chiavassa A, Chinellato JA, Chirinos Diaz J, Chudoba J, Clay RW, Coluccia MR, Conceição R, Contreras F, Cook H, Cooper MJ, Coppens J, Cordier A, Coutu S, Covault CE, Creusot A, Criss A, Cronin J, Curutiu A, Dagoret-Campagne S, Dallier R, Dasso S, Daumiller K, Dawson BR, de Almeida RM, De Domenico M, De Donato C, de Jong SJ, De La Vega G, de Mello Junior WJM, de Mello Neto JRT, De Mitri I, de Souza V, de Vries KD, Decerprit G, del Peral L, del Río M, Deligny O, Dembinski H, Dhital N, Di Giulio C, Díaz Castro ML, Diep PN, Dobrigkeit C, Docters W, D'Olivo JC, Dong PN, Dorofeev A, dos Anjos JC, Dova MT, D'Urso D, Dutan I, Ebr J, Engel R, Erdmann M, Escobar CO, Espadanal J, Etchegoyen A, Facal San Luis P, Fajardo Tapia I, Falcke H, Farrar G, Fauth AC, Fazzini N, Ferguson AP, Ferrero A, Fick B, Filevich A, Filipčič A, Fliescher S, Fracchiolla CE, Fraenkel ED, Fröhlich U, Fuchs B, Gaior R, Gamarra RF, Gambetta S, García B, Garcia-Gamez D, Garcia-Pinto D, Gascon A, Gemmeke H, Gesterling K, Ghia PL, Giaccari U, Giller M, Glass H, Gold MS, Golup G, Gomez Albarracin F, Gómez Berisso M, Gonçalves P, Gonzalez D, Gonzalez JG, Gookin B, Góra D, Gorgi A, Gouffon P, Gozzini SR, Grashorn E, Grebe S, Griffith N, Grigat M, Grillo AF, Guardincerri Y, Guarino F, Guedes GP, Guzman A, Hague JD, Hansen P, Harari D, Harmsma S, Harrison TA, Harton JL, Haungs A, Hebbeker T, Heck D, Herve AE, Hojvat C, Hollon N, Holmes VC, Homola P, Hörandel JR, Horneffer A, Horvath P, Hrabovský M, Huege T, Insolia A, Ionita F, Italiano A, Jarne C, Jiraskova S, Josebachuili M, Kadija K, Kampert KH, Karhan P, Kasper P, Kégl B, Keilhauer B, Keivani A, Kelley JL, Kemp E, Kieckhafer RM, Klages HO, Kleifges M, Kleinfeller J, Knapp J, Koang DH, Kotera K, Krohm N, Krömer O, Kruppke-Hansen D, Kuehn F, Kuempel D, Kulbartz JK, Kunka N, La Rosa G, Lachaud C, Lauer R, Lautridou P, Le Coz S, Leão MSAB, Lebrun D, Lebrun P, Leigui de Oliveira MA, Lemiere A, Letessier-Selvon A, Lhenry-Yvon I, Link K, López R, Lopez Agüera A, Louedec K, Lozano Bahilo J, Lu L, Lucero A, Ludwig M, Lyberis H, Macolino C, Maldera S, Mandat D, Mantsch P, Mariazzi AG, Marin J, Marin V, Maris IC, Marquez Falcon HR, Marsella G, Martello D, Martin L, Martinez H, Martínez Bravo O, Mathes HJ, Matthews J, Matthews JAJ, Matthiae G, Maurizio D, Mazur PO, Medina-Tanco G, Melissas M, Melo D, Menichetti E, Menshikov A, Mertsch P, Meurer C, Mićanović S, Micheletti MI, Miller W, Miramonti L, Molina-Bueno L, Mollerach S, Monasor M, Monnier Ragaigne D, Montanet F, Morales B, Morello C, Moreno E, Moreno JC, Morris C, Mostafá M, Moura CA, Mueller S, Muller MA, Müller G, Münchmeyer M, Mussa R, Navarra G, Navarro JL, Navas S, Necesal P, Nellen L, Nelles A, Neuser J, Nhung PT, Niemietz L, Nierstenhoefer N, Nitz D, Nosek D, Nožka L, Nyklicek M, Oehlschläger J, Olinto A, Olmos-Gilbaja VM, Ortiz M, Pacheco N, Pakk Selmi-Dei D, Palatka M, Pallotta J, Palmieri N, Parente G, Parizot E, Parra A, Parsons RD, Pastor S, Paul T, Pech M, Pekala J, Pelayo R, Pepe IM, Perrone L, Pesce R, Petermann E, Petrera S, Petrinca P, Petrolini A, Petrov Y, Petrovic J, Pfendner C, Phan N, Piegaia R, Pierog T, Pieroni P, Pimenta M, Pirronello V, Platino M, Ponce VH, Pontz M, Privitera P, Prouza M, Quel EJ, Querchfeld S, Rautenberg J, Ravel O, Ravignani D, Revenu B, Ridky J, Riggi S, Risse M, Ristori P, Rivera H, Rizi V, Roberts J, Robledo C, Rodrigues de Carvalho W, Rodriguez G, Rodriguez Martino J, Rodriguez Rojo J, Rodriguez-Cabo I, Rodríguez-Frías MD, Ros G, Rosado J, Rossler T, Roth M, Rouillé-d'Orfeuil B, Roulet E, Rovero AC, Rühle C, Salamida F, Salazar H, Salesa Greus F, Salina G, Sánchez F, Santo CE, Santos E, Santos EM, Sarazin F, Sarkar B, Sarkar S, Sato R, Scharf N, Scherini V, Schieler H, Schiffer P, Schmidt A, Scholten O, Schoorlemmer H, Schovancova J, Schovánek P, Schröder F, Schulte S, Schuster D, Sciutto SJ, Scuderi M, Segreto A, Settimo M, Shadkam A, Shellard RC, Sidelnik I, Sigl G, Silva Lopez HH, Smiałkowski A, Smída R, Snow GR, Sommers P, Sorokin J, Spinka H, Squartini R, Stanic S, Stapleton J, Stasielak J, Stephan M, Stutz A, Suarez F, Suomijärvi T, Supanitsky AD, Suša T, Sutherland MS, Swain J, Szadkowski Z, Szuba M, Tamashiro A, Tapia A, Tartare M, Taşcău O, Tavera Ruiz CG, Tcaciuc R, Tegolo D, Thao NT, Thomas D, Tiffenberg J, Timmermans C, Tiwari DK, Tkaczyk W, Todero Peixoto CJ, Tomé B, Tonachini A, Travnicek P, Tridapalli DB, Tristram G, Trovato E, Tueros M, Ulrich R, Unger M, Urban M, Valdés Galicia JF, Valiño I, Valore L, van den Berg AM, Varela E, Vargas Cárdenas B, Vázquez JR, Vázquez RA, Veberič D, Verzi V, Vicha J, Videla M, Villaseñor L, Wahlberg H, Wahrlich P, Wainberg O, Walz D, Warner D, Watson AA, Weber M, Weidenhaupt K, Weindl A, Westerhoff S, Whelan BJ, Wieczorek G, Wiencke L, Wilczyńska B, Wilczyński H, Will M, Williams C, Winchen T, Winnick MG, Wommer M, Wundheiler B, Yamamoto T, Yapici T, Younk P, Yuan G, Yushkov A, Zamorano B, Zas E, Zavrtanik D, Zavrtanik M, Zaw I, Zepeda A, Zhu Y, Zimbres Silva M, Ziolkowski M. Measurement of the proton-air cross section at √s=57 TeV with the Pierre Auger Observatory. Phys Rev Lett 2012; 109:062002. [PMID: 23006259 DOI: 10.1103/physrevlett.109.062002] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2011] [Indexed: 06/01/2023]
Abstract
We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505±22(stat)(-36)(+28)(syst)] mb is found.
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Affiliation(s)
- P Abreu
- LIP and Instituto Superior Técnico, Technical University of Lisbon, Lisbon, Portugal
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Janhunen P, Toivanen PK, Polkko J, Merikallio S, Salminen P, Haeggström E, Seppänen H, Kurppa R, Ukkonen J, Kiprich S, Thornell G, Kratz H, Richter L, Krömer O, Rosta R, Noorma M, Envall J, Lätt S, Mengali G, Quarta AA, Koivisto H, Tarvainen O, Kalvas T, Kauppinen J, Nuottajärvi A, Obraztsov A. Invited article: Electric solar wind sail: toward test missions. Rev Sci Instrum 2010; 81:111301. [PMID: 21133454 DOI: 10.1063/1.3514548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The electric solar wind sail (E-sail) is a space propulsion concept that uses the natural solar wind dynamic pressure for producing spacecraft thrust. In its baseline form, the E-sail consists of a number of long, thin, conducting, and centrifugally stretched tethers, which are kept in a high positive potential by an onboard electron gun. The concept gains its efficiency from the fact that the effective sail area, i.e., the potential structure of the tethers, can be millions of times larger than the physical area of the thin tethers wires, which offsets the fact that the dynamic pressure of the solar wind is very weak. Indeed, according to the most recent published estimates, an E-sail of 1 N thrust and 100 kg mass could be built in the rather near future, providing a revolutionary level of propulsive performance (specific acceleration) for travel in the solar system. Here we give a review of the ongoing technical development work of the E-sail, covering tether construction, overall mechanical design alternatives, guidance and navigation strategies, and dynamical and orbital simulations.
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Affiliation(s)
- P Janhunen
- Finnish Meteorological Institute, Helsinki FIN-00100, Finland.
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Abraham J, Abreu P, Aglietta M, Ahn EJ, Allard D, Allekotte I, Allen J, Alvarez-Muñiz J, Ambrosio M, Anchordoqui L, Andringa S, Anticić T, Anzalone A, Aramo C, Arganda E, Arisaka K, Arqueros F, Asorey H, Assis P, Aublin J, Ave M, Avila G, Bäcker T, Badagnani D, Balzer M, Barber KB, Barbosa AF, Barroso SLC, Baughman B, Bauleo P, Beatty JJ, Becker BR, Becker KH, Bellétoile A, Bellido JA, Benzvi S, Berat C, Bergmann T, Bertou X, Biermann PL, Billoir P, Blanch-Bigas O, Blanco F, Blanco M, Bleve C, Blümer H, Bohácová M, Boncioli D, Bonifazi C, Bonino R, Borodai N, Brack J, Brogueira P, Brown WC, Bruijn R, Buchholz P, Bueno A, Burton RE, Busca NG, Caballero-Mora KS, Caramete L, Caruso R, Castellina A, Catalano O, Cataldi G, Cazon L, Cester R, Chauvin J, Chiavassa A, Chinellato JA, Chou A, Chudoba J, Clay RW, Colombo E, Coluccia MR, Conceição R, Contreras F, Cook H, Cooper MJ, Coppens J, Cordier A, Cotti U, Coutu S, Covault CE, Creusot A, Criss A, Cronin J, Curutiu A, Dagoret-Campagne S, Dallier R, Daumiller K, Dawson BR, de Almeida RM, De Domenico M, De Donato C, de Jong SJ, De La Vega G, de Mello Junior WJM, de Mello Neto JRT, De Mitri I, de Souza V, de Vries KD, Decerprit G, Del Peral L, Deligny O, Della Selva A, Delle Fratte C, Dembinski H, Di Giulio C, Diaz JC, Díaz Castro ML, Diep PN, Dobrigkeit C, D'Olivo JC, Dong PN, Dorofeev A, Dos Anjos JC, Dova MT, D'Urso D, Dutan I, Duvernois MA, Ebr J, Engel R, Erdmann M, Escobar CO, Etchegoyen A, Facal San Luis P, Falcke H, Farrar G, Fauth AC, Fazzini N, Ferrero A, Fick B, Filevich A, Filipcic A, Fleck I, Fliescher S, Fracchiolla CE, Fraenkel ED, Fröhlich U, Fulgione W, Gamarra RF, Gambetta S, García B, García Gámez D, Garcia-Pinto D, Garrido X, Gelmini G, Gemmeke H, Ghia PL, Giaccari U, Giller M, Glass H, Goggin LM, Gold MS, Golup G, Gomez Albarracin F, Gómez Berisso M, Gonçalves P, Gonzalez D, Gonzalez JG, Góra D, Gorgi A, Gouffon P, Gozzini SR, Grashorn E, Grebe S, Grigat M, Grillo AF, Guardincerri Y, Guarino F, Guedes GP, Hague JD, Halenka V, Hansen P, Harari D, Harmsma S, Harton JL, Haungs A, Hebbeker T, Heck D, Herve AE, Hojvat C, Holmes VC, Homola P, Hörandel JR, Horneffer A, Hrabovský M, Huege T, Hussain M, Iarlori M, Insolia A, Ionita F, Italiano A, Jiraskova S, Kadija K, Kaducak M, Kampert KH, Karova T, Kasper P, Kégl B, Keilhauer B, Keivani A, Kelley J, Kemp E, Kieckhafer RM, Klages HO, Kleifges M, Kleinfeller J, Knapik R, Knapp J, Koang DH, Krieger A, Krömer O, Kruppke-Hansen D, Kuehn F, Kuempel D, Kulbartz K, Kunka N, Kusenko A, La Rosa G, Lachaud C, Lago BL, Lautridou P, Leão MSAB, Lebrun D, Lebrun P, Lee J, Leigui de Oliveira MA, Lemiere A, Letessier-Selvon A, Lhenry-Yvon I, López R, Lopez Agüera A, Louedec K, Lozano Bahilo J, Lucero A, Ludwig M, Lyberis H, Maccarone MC, Macolino C, Maldera S, Mandat D, Mantsch P, Mariazzi AG, Marin V, Maris IC, Marquez Falcon HR, Marsella G, Martello D, Martínez Bravo O, Mathes HJ, Matthews J, Matthews JAJ, Matthiae G, Maurizio D, Mazur PO, McEwen M, Medina-Tanco G, Melissas M, Melo D, Menichetti E, Menshikov A, Meurer C, Micanović S, Micheletti MI, Miller W, Miramonti L, Mollerach S, Monasor M, Monnier Ragaigne D, Montanet F, Morales B, Morello C, Moreno E, Moreno JC, Morris C, Mostafá M, Mueller S, Muller MA, Mussa R, Navarra G, Navarro JL, Navas S, Necesal P, Nellen L, Nhung PT, Nierstenhoefer N, Nitz D, Nosek D, Nozka L, Nyklicek M, Oehlschläger J, Olinto A, Oliva P, Olmos-Gilbaja VM, Ortiz M, Pacheco N, Pakk Selmi-Dei D, Palatka M, Pallotta J, Palmieri N, Parente G, Parizot E, Parlati S, Parra A, Parrisius J, Parsons RD, Pastor S, Paul T, Pavlidou V, Payet K, Pech M, Pekala J, Pelayo R, Pepe IM, Perrone L, Pesce R, Petermann E, Petrera S, Petrinca P, Petrolini A, Petrov Y, Petrovic J, Pfendner C, Piegaia R, Pierog T, Pimenta M, Pirronello V, Platino M, Ponce VH, Pontz M, Privitera P, Prouza M, Quel EJ, Rautenberg J, Ravel O, Ravignani D, Redondo A, Revenu B, Rezende FAS, Ridky J, Riggi S, Risse M, Ristori P, Rivière C, Rizi V, Robledo C, Rodriguez G, Rodriguez Martino J, Rodriguez Rojo J, Rodriguez-Cabo I, Rodríguez-Frías MD, Ros G, Rosado J, Rossler T, Roth M, Rouillé-d'Orfeuil B, Roulet E, Rovero AC, Salamida F, Salazar H, Salina G, Sánchez F, Santander M, Santo CE, Santos E, Santos EM, Sarazin F, Sarkar S, Sato R, Scharf N, Scherini V, Schieler H, Schiffer P, Schmidt A, Schmidt F, Schmidt T, Scholten O, Schoorlemmer H, Schovancova J, Schovánek P, Schroeder F, Schulte S, Schüssler F, Schuster D, Sciutto SJ, Scuderi M, Segreto A, Semikoz D, Settimo M, Shadkam A, Shellard RC, Sidelnik I, Siffert BB, Sigl G, Smiałkowski A, Smída R, Snow GR, Sommers P, Sorokin J, Spinka H, Squartini R, Stasielak J, Stephan M, Strazzeri E, Stutz A, Suarez F, Suomijärvi T, Supanitsky AD, Susa T, Sutherland MS, Swain J, Szadkowski Z, Tamashiro A, Tamburro A, Tapia A, Tarutina T, Taşcău O, Tcaciuc R, Tcherniakhovski D, Tegolo D, Thao NT, Thomas D, Tiffenberg J, Timmermans C, Tkaczyk W, Todero Peixoto CJ, Tomé B, Tonachini A, Travnicek P, Tridapalli DB, Tristram G, Trovato E, Tueros M, Ulrich R, Unger M, Urban M, Valdés Galicia JF, Valiño I, Valore L, van den Berg AM, Vázquez JR, Vázquez RA, Veberic D, Venters T, Verzi V, Videla M, Villaseñor L, Vorobiov S, Voyvodic L, Wahlberg H, Wahrlich P, Wainberg O, Warner D, Watson AA, Westerhoff S, Whelan BJ, Wieczorek G, Wiencke L, Wilczyńska B, Wilczyński H, Williams C, Winchen T, Winnick MG, Wundheiler B, Yamamoto T, Younk P, Yuan G, Yushkov A, Zas E, Zavrtanik D, Zavrtanik M, Zaw I, Zepeda A, Ziolkowski M. Measurement of the depth of maximum of extensive air showers above 10{18} eV. Phys Rev Lett 2010; 104:091101. [PMID: 20366976 DOI: 10.1103/physrevlett.104.091101] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Indexed: 05/29/2023]
Abstract
We describe the measurement of the depth of maximum, X{max}, of the longitudinal development of air showers induced by cosmic rays. Almost 4000 events above 10;{18} eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate of (106{-21}{+35}) g/cm{2}/decade below 10{18.24+/-0.05} eV, and (24+/-3) g/cm{2}/decade above this energy. The measured shower-to-shower fluctuations decrease from about 55 to 26 g/cm{2}. The interpretation of these results in terms of the cosmic ray mass composition is briefly discussed.
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Affiliation(s)
- J Abraham
- National Technological University, Faculty Mendoza (CONICET/CNEA), Mendoza, Argentina
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Abraham J, Abreu P, Aglietta M, Aguirre C, Allard D, Allekotte I, Allen J, Allison P, Alvarez-Muñiz J, Ambrosio M, Anchordoqui L, Andringa S, Anzalone A, Aramo C, Argirò S, Arisaka K, Armengaud E, Arneodo F, Arqueros F, Asch T, Asorey H, Assis P, Atulugama BS, Aublin J, Ave M, Avila G, Bäcker T, Badagnani D, Barbosa AF, Barnhill D, Barroso SLC, Baughman B, Bauleo P, Beatty JJ, Beau T, Becker BR, Becker KH, Bellido JA, Benzvi S, Berat C, Bergmann T, Bernardini P, Bertou X, Biermann PL, Billoir P, Blanch-Bigas O, Blanco F, Blasi P, Bleve C, Blümer H, Bohácová M, Bonifazi C, Bonino R, Brack J, Brogueira P, Brown WC, Buchholz P, Bueno A, Burton RE, Busca NG, Caballero-Mora KS, Cai B, Camin DV, Caramete L, Caruso R, Carvalho W, Castellina A, Catalano O, Cataldi G, Cazon L, Cester R, Chauvin J, Chiavassa A, Chinellato JA, Chou A, Chudoba J, Chye J, Clark PDJ, Clay RW, Colombo E, Conceição R, Connolly B, Contreras F, Coppens J, Cordier A, Cotti U, Coutu S, Covault CE, Creusot A, Criss A, Cronin J, Curutiu A, Dagoret-Campagne S, Daumiller K, Dawson BR, de Almeida RM, De Donato C, de Jong SJ, De La Vega G, Junior WJMDM, Neto JRTDM, De Mitri I, de Souza V, Del Peral L, Deligny O, Della Selva A, Fratte CD, Dembinski H, Di Giulio C, Diaz JC, Diep PN, Dobrigkeit C, D'Olivo JC, Dong PN, Dornic D, Dorofeev A, Dos Anjos JC, Dova MT, D'Urso D, Dutan I, Duvernois MA, Engel R, Epele L, Erdmann M, Escobar CO, Etchegoyen A, Luis PFS, Falcke H, Farrar G, Fauth AC, Fazzini N, Ferrer F, Ferrero A, Fick B, Filevich A, Filipcic A, Fleck I, Fracchiolla CE, Fulgione W, García B, Gámez DG, Garcia-Pinto D, Garrido X, Geenen H, Gelmini G, Gemmeke H, Ghia PL, Giller M, Glass H, Gold MS, Golup G, Albarracin FG, Berisso MG, Gonçalves P, do Amaral MG, Gonzalez D, Gonzalez JG, González M, Góra D, Gorgi A, Gouffon P, Grassi V, Grillo AF, Grunfeld C, Guardincerri Y, Guarino F, Guedes GP, Gutiérrez J, Hague JD, Halenka V, Hamilton JC, Hansen P, Harari D, Harmsma S, Harton JL, Haungs A, Hauschildt T, Healy MD, Hebbeker T, Hebrero G, Heck D, Hojvat C, Holmes VC, Homola P, Hörandel JR, Horneffer A, Hrabovský M, Huege T, Hussain M, Iarlori M, Insolia A, Ionita F, Italiano A, Kaducak M, Kampert KH, Karova T, Kasper P, Kégl B, Keilhauer B, Kemp E, Kieckhafer RM, Klages HO, Kleifges M, Kleinfeller J, Knapik R, Knapp J, Koang DH, Krieger A, Krömer O, Kuempel D, Kunka N, Kusenko A, La Rosa G, Lachaud C, Lago BL, Lebrun D, Lebrun P, Lee J, de Oliveira MAL, Letessier-Selvon A, Leuthold M, Lhenry-Yvon I, López R, Agüera AL, Bahilo JL, Lucero A, García RL, Maccarone MC, Macolino C, Maldera S, Mancarella G, Manceñido ME, Mandat D, Mantsch P, Mariazzi AG, Maris IC, Falcon HRM, Martello D, Martínez J, Bravo OM, Mathes HJ, Matthews J, Matthews JAJ, Matthiae G, Maurizio D, Mazur PO, McCauley T, McEwen M, McNeil RR, Medina MC, Medina-Tanco G, Melo D, Menichetti E, Menschikov A, Meurer C, Meyhandan R, Micheletti MI, Miele G, Miller W, Mollerach S, Monasor M, Ragaigne DM, Montanet F, Morales B, Morello C, Moreno JC, Morris C, Mostafá M, Muller MA, Mussa R, Navarra G, Navarro JL, Navas S, Necesal P, Nellen L, Newman-Holmes C, Newton D, Nhung PT, Nierstenhoefer N, Nitz D, Nosek D, Nozka L, Oehlschläger J, Ohnuki T, Olinto A, Olmos-Gilbaja VM, Ortiz M, Ortolani F, Ostapchenko S, Otero L, Pacheco N, Selmi-Dei DP, Palatka M, Pallotta J, Parente G, Parizot E, Parlati S, Pastor S, Patel M, Paul T, Pavlidou V, Payet K, Pech M, Pekala J, Pelayo R, Pepe IM, Perrone L, Pesce R, Petrera S, Petrinca P, Petrov Y, Pichel A, Piegaia R, Pierog T, Pimenta M, Pinto T, Pirronello V, Pisanti O, Platino M, Pochon J, Privitera P, Prouza M, Quel EJ, Rautenberg J, Redondo A, Reucroft S, Revenu B, Rezende FAS, Ridky J, Riggi S, Risse M, Rivière C, Rizi V, Roberts M, Robledo C, Rodriguez G, Martino JR, Rojo JR, Rodriguez-Cabo I, Rodríguez-Frías MD, Ros G, Rosado J, Roth M, Rouillé-d'Orfeuil B, Roulet E, Rovero AC, Salamida F, Salazar H, Salina G, Sánchez F, Santander M, Santo CE, Santos EM, Sarazin F, Sarkar S, Sato R, Scherini V, Schieler H, Schmidt A, Schmidt F, Schmidt T, Scholten O, Schovánek P, Schroeder F, Schulte S, Schüssler F, Sciutto SJ, Scuderi M, Segreto A, Semikoz D, Settimo M, Shellard RC, Sidelnik I, Siffert BB, Sigl G, Grande NSD, Smiałkowski A, Smída R, Smith AGK, Smith BE, Snow GR, Sokolsky P, Sommers P, Sorokin J, Spinka H, Squartini R, Strazzeri E, Stutz A, Suarez F, Suomijärvi T, Supanitsky AD, Sutherland MS, Swain J, Szadkowski Z, Takahashi J, Tamashiro A, Tamburro A, Tarutina T, Taşcău O, Tcaciuc R, Thao NT, Thomas D, Ticona R, Tiffenberg J, Timmermans C, Tkaczyk W, Peixoto CJT, Tomé B, Tonachini A, Torres I, Travnicek P, Tripathi A, Tristram G, Tscherniakhovski D, Tuci V, Tueros M, Tunnicliffe V, Ulrich R, Unger M, Urban M, Galicia JFV, Valiño I, Valore L, van den Berg AM, van Elewyck V, Vázquez RA, Veberic D, Veiga A, Velarde A, Venters T, Verzi V, Videla M, Villaseñor L, Vorobiov S, Voyvodic L, Wahlberg H, Wahrlich P, Wainberg O, Walker P, Warner D, Watson AA, Westerhoff S, Wieczorek G, Wiencke L, Wilczyńska B, Wilczyński H, Wileman C, Winnick MG, Wu H, Wundheiler B, Yamamoto T, Younk P, Zas E, Zavrtanik D, Zavrtanik M, Zaw I, Zepeda A, Ziolkowski M. Observation of the suppression of the flux of cosmic rays above 4 x 10 (19) eV. Phys Rev Lett 2008; 101:061101. [PMID: 18764444 DOI: 10.1103/physrevlett.101.061101] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2008] [Indexed: 05/26/2023]
Abstract
The energy spectrum of cosmic rays above 2.5 x 10;{18} eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index gamma of the particle flux, J proportional, variantE;{-gamma}, at energies between 4 x 10;{18} eV and 4 x 10;{19} eV is 2.69+/-0.02(stat)+/-0.06(syst), steepening to 4.2+/-0.4(stat)+/-0.06(syst) at higher energies. The hypothesis of a single power law is rejected with a significance greater than 6 standard deviations. The data are consistent with the prediction by Greisen and by Zatsepin and Kuz'min.
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Affiliation(s)
- J Abraham
- Universidad Tecnológica Nacional, FR-Mendoza, Argentina
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Abraham J, Abreu P, Aglietta M, Aguirre C, Allard D, Allekotte I, Allen J, Allison P, Alvarez-Muñiz J, Ambrosio M, Anchordoqui L, Andringa S, Anzalone A, Aramo C, Argirò S, Arisaka K, Armengaud E, Arneodo F, Arqueros F, Asch T, Asorey H, Assis P, Atulugama BS, Aublin J, Ave M, Avila G, Bäcker T, Badagnani D, Barbosa AF, Barnhill D, Barroso SLC, Bauleo P, Beatty JJ, Beau T, Becker BR, Becker KH, Bellido JA, BenZvi S, Berat C, Bergmann T, Bernardini P, Bertou X, Biermann PL, Billoir P, Blanch-Bigas O, Blanco F, Blasi P, Bleve C, Blümer H, Bohácová M, Bonifazi C, Bonino R, Boratav M, Brack J, Brogueira P, Brown WC, Buchholz P, Bueno A, Burton RE, Busca NG, Caballero-Mora KS, Cai B, Camin DV, Caramete L, Caruso R, Carvalho W, Castellina A, Catalano O, Cataldi G, Cazon L, Cester R, Chauvin J, Chiavassa A, Chinellato JA, Chou A, Chye J, Clark PDJ, Clay RW, Colombo E, Conceição R, Connolly B, Contreras F, Coppens J, Cordier A, Cotti U, Coutu S, Covault CE, Creusot A, Criss A, Cronin J, Curutiu A, Dagoret-Campagne S, Daumiller K, Dawson BR, de Almeida RM, De Donato C, de Jong SJ, De La Vega G, de Mello Junior WJM, de Mello Neto JRT, DeMitri I, de Souza V, del Peral L, Deligny O, Della Selva A, Delle Fratte C, Dembinski H, Di Giulio C, Diaz JC, Dobrigkeit C, D'Olivo JC, Dornic D, Dorofeev A, dos Anjos JC, Dova MT, D'Urso D, Dutan I, DuVernois MA, Engel R, Epele L, Erdmann M, Escobar CO, Etchegoyen A, Facal San Luis P, Falcke H, Farrar G, Fauth AC, Fazzini N, Ferrer F, Ferry S, Fick B, Filevich A, Filipcic A, Fleck I, Fonte R, Fracchiolla CE, Fulgione W, García B, García Gámez D, Garcia-Pinto D, Garrido X, Geenen H, Gelmini G, Gemmeke H, Ghia PL, Giller M, Glass H, Gold MS, Golup G, Gomez Albarracin F, Gómez Berisso M, Gómez Herrero R, Gonçalves P, Gonçalves do Amaral M, Gonzalez D, Gonzalez JG, González M, Góra D, Gorgi A, Gouffon P, Grassi V, Grillo AF, Grunfeld C, Guardincerri Y, Guarino F, Guedes GP, Gutiérrez J, Hague JD, Hamilton JC, Hansen P, Harari D, Harmsma S, Harton JL, Haungs A, Hauschildt T, Healy MD, Hebbeker T, Hebrero G, Heck D, Hojvat C, Holmes VC, Homola P, Hörandel J, Horneffer A, Horvat M, Hrabovský M, Huege T, Hussain M, Iarlori M, Insolia A, Ionita F, Italiano A, Kaducak M, Kampert KH, Karova T, Kégl B, Keilhauer B, Kemp E, Kieckhafer RM, Klages HO, Kleifges M, Kleinfeller J, Knapik R, Knapp J, Koang DH, Krieger A, Krömer O, Kuempel D, Kunka N, Kusenko A, La Rosa G, Lachaud C, Lago BL, Lebrun D, Lebrun P, Lee J, Leigui de Oliveira MA, Letessier-Selvon A, Leuthold M, Lhenry-Yvon I, López R, Lopez Agüera A, Lozano Bahilo J, Luna García R, Maccarone MC, Macolino C, Maldera S, Mancarella G, Manceñido ME, Mandat D, Mantsch P, Mariazzi AG, Maris IC, Marquez Falcon HR, Martello D, Martínez J, Martínez Bravo O, Mathes HJ, Matthews J, Matthews JAJ, Matthiae G, Maurizio D, Mazur PO, McCauley T, McEwen M, McNeil RR, Medina MC, Medina-Tanco G, Meli A, Melo D, Menichetti E, Menschikov A, Meurer C, Meyhandan R, Micheletti MI, Miele G, Miller W, Mollerach S, Monasor M, Monnier Ragaigne D, Montanet F, Morales B, Morello C, Moreno JC, Morris C, Mostafá M, Muller MA, Mussa R, Navarra G, Navarro JL, Navas S, Necesal P, Nellen L, Newman-Holmes C, Newton D, Nguyen Thi T, Nierstenhoefer N, Nitz D, Nosek D, Nozka L, Oehlschläger J, Ohnuki T, Olinto A, Olmos-Gilbaja VM, Ortiz M, Ortolani F, Ostapchenko S, Otero L, Pacheco N, Pakk Selmi-Dei D, Palatka M, Pallotta J, Parente G, Parizot E, Parlati S, Pastor S, Patel M, Paul T, Pavlidou V, Payet K, Pech M, Pekala J, Pelayo R, Pepe IM, Perrone L, Petrera S, Petrinca P, Petrov Y, Pham Ngoc D, Pham Ngoc D, Pham Thi TN, Pichel A, Piegaia R, Pierog T, Pimenta M, Pinto T, Pirronello V, Pisanti O, Platino M, Pochon J, Privitera P, Prouza M, Quel EJ, Rautenberg J, Redondo A, Reucroft S, Revenu B, Rezende FAS, Ridky J, Riggi S, Risse M, Rivière C, Rizi V, Roberts M, Robledo C, Rodriguez G, Rodríguez Frías D, Rodriguez Martino J, Rodriguez Rojo J, Rodriguez-Cabo I, Ros G, Rosado J, Roth M, Rouillé-d'Orfeuil B, Roulet E, Rovero AC, Salamida F, Salazar H, Salina G, Sánchez F, Santander M, Santo CE, Santos EM, Sarazin F, Sarkar S, Sato R, Scherini V, Schieler H, Schmidt A, Schmidt F, Schmidt T, Scholten O, Schovánek P, Schüssler F, Sciutto SJ, Scuderi M, Segreto A, Semikoz D, Settimo M, Shellard RC, Sidelnik I, Siffert BB, Sigl G, Smetniansky De Grande N, Smiałkowski A, Smída R, Smith AGK, Smith BE, Snow GR, Sokolsky P, Sommers P, Sorokin J, Spinka H, Squartini R, Strazzeri E, Stutz A, Suarez F, Suomijärvi T, Supanitsky AD, Sutherland MS, Swain J, Szadkowski Z, Takahashi J, Tamashiro A, Tamburro A, Taşcău O, Tcaciuc R, Thomas D, Ticona R, Tiffenberg J, Timmermans C, Tkaczyk W, Todero Peixoto CJ, Tomé B, Tonachini A, Torres I, Torresi D, Travnicek P, Tripathi A, Tristram G, Tscherniakhovski D, Tueros M, Tunnicliffe V, Ulrich R, Unger M, Urban M, Valdés Galicia JF, Valiño I, Valore L, van den Berg AM, van Elewyck V, Vázquez RA, Veberic D, Veiga A, Velarde A, Venters T, Verzi V, Videla M, Villaseñor L, Vorobiov S, Voyvodic L, Wahlberg H, Wainberg O, Walker P, Warner D, Watson AA, Westerhoff S, Wieczorek G, Wiencke L, Wilczyńska B, Wilczyński H, Wileman C, Winnick MG, Wu H, Wundheiler B, Yamamoto T, Younk P, Zas E, Zavrtanik D, Zavrtanik M, Zech A, Zepeda A, Ziolkowski M. Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory. Phys Rev Lett 2008; 100:211101. [PMID: 18518595 DOI: 10.1103/physrevlett.100.211101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Indexed: 05/26/2023]
Abstract
The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth's crust. Tau leptons from nu(tau) charged-current interactions can emerge and decay in the atmosphere to produce a nearly horizontal shower with a significant electromagnetic component. The data collected between 1 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of nu(tau) at EeV energies. Assuming an E(nu)(-2) differential energy spectrum the limit set at 90% C.L. is E(nu)(2)dN(nu)(tau)/dE(nu)<1.3 x 10(-7) GeV cm(-2) s(-1) sr(-1) in the energy range 2 x 10(17) eV< E(nu)< 2 x 10(19) eV.
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Affiliation(s)
- J Abraham
- Centro de Investigaciones en Laseres y Aplicaciones, CITEFA and CONICET, Argentina
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Falcke H, Apel WD, Badea AF, Bähren L, Bekk K, Bercuci A, Bertaina M, Biermann PL, Blümer J, Bozdog H, Brancus IM, Buitink S, Brüggemann M, Buchholz P, Butcher H, Chiavassa A, Daumiller K, de Bruyn AG, de Vos CM, Di Pierro F, Doll P, Engel R, Gemmeke H, Ghia PL, Glasstetter R, Grupen C, Haungs A, Heck D, Hörandel JR, Horneffer A, Huege T, Kampert KH, Kant GW, Klein U, Kolotaev Y, Koopman Y, Krömer O, Kuijpers J, Lafebre S, Maier G, Mathes HJ, Mayer HJ, Milke J, Mitrica B, Morello C, Navarra G, Nehls S, Nigl A, Obenland R, Oehlschläger J, Ostapchenko S, Over S, Pepping HJ, Petcu M, Petrovic J, Plewnia S, Rebel H, Risse A, Roth M, Schieler H, Schoonderbeek G, Sima O, Stümpert M, Toma G, Trinchero GC, Ulrich H, Valchierotti S, van Buren J, van Cappellen W, Walkowiak W, Weindl A, Wijnholds S, Wochele J, Zabierowski J, Zensus JA, Zimmermann D. Detection and imaging of atmospheric radio flashes from cosmic ray air showers. Nature 2005; 435:313-6. [PMID: 15902250 DOI: 10.1038/nature03614] [Citation(s) in RCA: 256] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2005] [Accepted: 04/04/2005] [Indexed: 11/09/2022]
Abstract
The nature of ultrahigh-energy cosmic rays (UHECRs) at energies >10(20) eV remains a mystery. They are likely to be of extragalactic origin, but should be absorbed within approximately 50 Mpc through interactions with the cosmic microwave background. As there are no sufficiently powerful accelerators within this distance from the Galaxy, explanations for UHECRs range from unusual astrophysical sources to exotic string physics. Also unclear is whether UHECRs consist of protons, heavy nuclei, neutrinos or gamma-rays. To resolve these questions, larger detectors with higher duty cycles and which combine multiple detection techniques are needed. Radio emission from UHECRs, on the other hand, is unaffected by attenuation, has a high duty cycle, gives calorimetric measurements and provides high directional accuracy. Here we report the detection of radio flashes from cosmic-ray air showers using low-cost digital radio receivers. We show that the radiation can be understood in terms of the geosynchrotron effect. Our results show that it should be possible to determine the nature and composition of UHECRs with combined radio and particle detectors, and to detect the ultrahigh-energy neutrinos expected from flavour mixing.
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Affiliation(s)
- H Falcke
- Max-Planck-Institut für Radioastronomie, 53121 Bonn, Germany.
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