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1. Analysis of inclined showers measured with LOPES

Author

A. Saftoiu, W.D. Apel, J.C. Arteaga, T. Asch, J. Auffenberg, F. Badea, L. Bähren, K. Bekk, M. Bertaina, P.L. Biermann, J. Blümer, H. Bozdog, I.M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, H. Falcke, M. Finger, D. Fuhrmann, H. Gemmeke, P.L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J.R. Hörandel, A. Horneffer, T. Huege, P.G. Isar, K.-H. Kampert, D. Kang, D. Kickelbick, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, P. Łuczak, H.J. Mathes, H.J. Mayer, J. Milke, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, J. Oehlschläger, S. Over, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, H. Schieler, A. Schmidt, F. Schröder, O. Sima, K. Singh, M. Stümpert, G. Toma, G.C. Trinchero, H. Ulrich, W. Walkowiak, A. Weindl, J. Wochele, M. Wommer, J. Zabierowski, and J.A. Zensus

Subjects
Physics, Nuclear and High Energy Physics, LOPES, business.industry, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Amplitude, Air shower, Optics, Earth's magnetic field, KASCADE, Antenna (radio), business, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Instrumentation
Abstract

In the present study, we analyze the radio signal from inclined air showers recorded by LOPES-30 in coincidence with KASCADE-Grande. LOPES-30 consists of 30 East–West oriented digital antennas, which are amplitude calibrated by an external source. Radio emission from air showers is considered a geomagnetic effect. Inclined events provide a larger range of values for geomagnetic angle (angle between shower axis and geomagnetic field direction) than vertical showers and thus more information on the emission processes can be gathered. In order to have the geometry of the air shower we use the reconstruction provided by the KASCADE-Grande particle detectors array. Analyzing events observed by both LOPES and the extended part of the KASCADE array, Grande, gives the possibility to test in particular the capability and efficiency of radio detection of more distant events. The results are compared with a previous analysis of inclined events recorded by the initial 10 antenna set-up, LOPES-10, in coincidence with the Grande array.

Published
2009

2. Recent Results from KASCADE-Grande and LOPES

Author

K.-H. Kampert, W.D. Apel, J.C. Arteaga, T. Asch, F. Badea, L. Bähren, K. Bekk, M. Bertaina, P.L. Biermann, J. Blümer, H. Bozdog, I.M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, M. Ender, R. Engel, J. Engler, H. Falcke, M. Finger, D. Fuhrmann, H. Gemmeke, P.L. Ghia, H.J. Gils, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J.R. Hörandel, A. Horneffer, T. Huege, P.G. Isar, D. Kang, D. Kickelbick, H.O. Klages, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, K. Link, P. Łuczak, M. Ludwig, H.J. Mathes, H.J. Mayer, J. Milke, M. Melissas, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, J. Oehlschläger, S. Ostapchenko, S. Over, N. Palmieri, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, A. Saftoiu, H. Schieler, A. Schmidt, F. Schröder, O. Sima, K. Singh, M. Stümpert, G. Toma, G. Trinchero, H. Ulrich, W. Walkowiak, A. Weindl, J. Wochele, M. Wommer, J. Zabierowski, and J.A. Zensus

Subjects
Physics, Nuclear and High Energy Physics, Muon, LOPES, business.industry, Detector, Electrical engineering, Cosmic ray, Tracking (particle physics), Signal, Atomic and Molecular Physics, and Optics, Computational physics, KASCADE, business, Energy (signal processing)
Abstract

KASCADE-Grande is an extensive air-shower experiment located at Forschungszentrum Karlsruhe, Germany. Main parts of the experiment are the Grande array spread over an area of 700 × 700 m 2 , the original KASCADE array covering 200 × 200 m 2 with unshielded and shielded detectors, and additional muon tracking devices. This multi-detector system allows to investigate the energy spectrum, composition, and anisotropies of cosmic rays in the energy range up to 1 EeV. LOPES is co-located at the same site to measure radio pulses from extensive air showers in coincidence with KASCADE-Grande. It consists of 30 digital antennas operated in different geometrical configurations. Read out is performed at high bandwidths and rate data processing with the aim to calibrate the emitted signal in the primary energy range of 10 16 − 10 18 eV by making use of reconstructed air-shower observables of KASCADE-Grande. An overview on the performance of both experiments will be given and recent analysis results be reported.

Published
2009

3. Air shower measurements with the LOPES radio antenna array

Author

A. Haungs, W.D. Apel, J.C. Arteaga, T. Asch, J. Auffenberg, F. Badea, L. Bähren, K. Bekk, M. Bertaina, P.L. Biermann, J. Blümer, H. Bozdog, I.M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, H. Falcke, M. Finger, D. Fuhrmann, H. Gemmeke, P.L. Ghia, R. Glasstetter, C. Grupen, D. Heck, J.R. Hörandel, A. Horneffer, T. Huege, P.G. Isar, K.-H. Kampert, D. Kang, D. Kickelbick, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, P. Łuczak, H.J. Mathes, H.J. Mayer, J. Milke, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, J. Oehlschläger, S. Over, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, A. Saftoiu, H. Schieler, A. Schmidt, F. Schröder, O. Sima, K. Singh, M. Stümpert, G. Toma, G.C. Trinchero, H. Ulrich, W. Walkowiak, A. Weindl, J. Wochele, M. Wommer, J. Zabierowski, and J.A. Zensus

Subjects
Pierre Auger Observatory, Physics, Nuclear and High Energy Physics, LOPES, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics, Digital radio, Antenna array, Interferometry, Air shower, Optics, Amplitude, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, business, Instrumentation, Radio wave
Abstract

LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to measure and investigate radio pulses from Extensive Air Showers. Since radio waves suffer very little attenuation, radio measurements allow the detection of very distant or highly inclined showers. These waves can be recorded day and night, and provide a bolometric measure of the leptonic shower component. LOPES is designed as a digital radio interferometer using high bandwidths and fast data processing and profits from the reconstructed air shower observables of KASCADE-Grande. The LOPES antennas are absolutely amplitude calibrated allowing to reconstruct the electric field strength which can be compared with predictions from detailed Monte Carlo simulations. We report about the analysis of correlations present in the radio signals measured by the LOPES 30 antenna array. Additionally, LOPES operates antennas of a different type (LOPES-STAR) which are optimized for an application at the Pierre Auger Observatory. Status, recent results of the data analysis and further perspectives of LOPES and the possible large scale application of this new detection technique are discussed., Comment: 8 pages, 10 figures, Contribution to the Arena 2008 conference, Rome, June 2008

Published
2009

4. Radio detection of cosmic ray air showers with LOPES

Author

T. Huege, W.D. Apel, T. Asch, A.F. Badea, L. Bähren, K. Bekk, A. Bercuci, M. Bertaina, P.L. Biermann, J. Blümer, H. Bozdog, I.M. Brancus, S. Buitink, M. Brüggemann, P. Buchholz, H. Butcher, A. Chiavassa, F. Cossavella, K. Daumiller, F. Di Pierro, P. Doll, R. Engel, H. Falcke, H. Gemmeke, P.L. Ghia, R. Glasstetter, C. Grupen, A. Hakenjos, A. Haungs, D. Heck, J.R. Hörandel, A. Horneffer, P.G. Isar, K.H. Kampert, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, H.J. Mathes, H.J. Mayer, C. Meurer, J. Milke, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, R. Obenland, J. Oehlschläger, S. Ostapchenko, S. Over, M. Petcu, J. Petrovic, T. Pierog, S. Plewnia, H. Rebel, A. Risse, M. Roth, H. Schieler, O. Sima, K. Singh, M. Stümpert, G. Toma, G.C. Trinchero, H. Ulrich, J. van Buren, W. Walkowiak, A. Weindl, J. Wochele, J. Zabierowski, J.A. Zensus, and D. Zimmermann

Subjects
Physics, Pierre Auger Observatory, Nuclear and High Energy Physics, LOPES, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, The Renaissance, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Atomic and Molecular Physics, and Optics, Earth's magnetic field, Radio detection
Abstract

In the last few years, radio detection of cosmic ray air showers has experienced a true renaissance, becoming manifest in a number of new experiments and simulation efforts. In particular, the LOPES project has successfully implemented modern interferometric methods to measure the radio emission from extensive air showers. LOPES has confirmed that the emission is coherent and of geomagnetic origin, as expected by the geosynchrotron mechanism, and has demonstrated that a large scale application of the radio technique has great potential to complement current measurements of ultra-high energy cosmic rays. We describe the current status, most recent results and open questions regarding radio detection of cosmic rays and give an overview of ongoing research and development for an application of the radio technique in the framework of the Pierre Auger Observatory., 8 pages; Proceedings of the CRIS2006 conference, Catania, Italy; to be published in Nuclear Physics B, Proceedings Supplements

Published
2007

5. Radio emission of highly inclined cosmic ray air showers measured with LOPES

Author

J. Petrovic, W. D. Apel, T. Asch, F. Badea, L. Bähren, K. Bekk, A. Bercuci, M. Bertaina, P. L. Biermann, J. Blümer, H. Bozdog, I. M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, H. Butcher, A. Chiavassa, F. Cossavella, K. Daumiller, F. Di Pierro, P. Doll, R. Engel, H. Falcke, H. Gemmeke, P. L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J. R. Hörandel, A. Horneffer, T. Huege, K.-H. Kampert, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, H. J. Mathes, H. J. Mayer, C. Meurer, J. Milke, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, R. Obenland, J. Oehlschläger, S. Ostapchenko, S. Over, M. Petcu, T. Pierog, S. Plewnia, H. Rebel, A. Risse, M. Roth, H. Schieler, O. Sima, K. Singh, M. Stümpert, G. Toma, G. C. Trinchero, H. Ulrich, J. van Buren, W. Walkowiak, A. Weindl, J. Wochele, J. Zabierowski, J. A. Zensus, and D. Zimmermann

Subjects
Physics, LOPES, Physics::Instrumentation and Detectors, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Detector, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, LOFAR, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Air shower, KASCADE, Space and Planetary Science, High Energy Physics::Experiment, Event (particle physics), Zenith
Abstract

Contains fulltext : 36387.pdf ( ) (Open Access) Contains fulltext : 36387.pdf (Publisher’s version ) (Open Access) Aims.The capability of radio antenna arrays to measure cosmic ray air showers with very large zenith angles is explored. This is important, since a possible neutrino detection has to fulfill two requirements. First: antennas should be able to detect very inclined cosmic ray air showers, and second: it should be possible to estimate the distance to the shower maximum, since neutrinos are most likely to travel far through the Earth's atmosphere without interaction and induce air showers close to the ground. Methods: LOPES (LOFAR PrototypE Station; LOFAR - LOw Frequency ARray), an array of dipole antennas, is used for the detection of inclined cosmic ray air showers. LOPES is co-located and triggered by the KASCADE (KArlsruhe Shower Core and Array DEtector) experiment, which also provides information on air shower properties such as electron and muon numbers on the ground, as well as the arrival direction. Radio emission of nearly vertical cosmic ray air showers has been detected by LOPES. Results: LOPES-10 (the first phase of LOPES, consisting of 10 antennas) detected a significant number of cosmic ray air showers with a zenith angle larger than 50°, and many of these have very high radio field strengths. The most inclined event that has been detected with LOPES-10 has a zenith angle of almost 80°. This is proof that the new technique is also applicable for cosmic ray air showers with high inclinations, which in the case that they are initiated close to the ground, can be a signature of neutrino events. Conclusions: .Our results indicate that arrays of simple radio antennas can be used for the detection of highly inclined air showers, which might be triggered by neutrinos. In addition, we found that the radio pulse height (normalized with the muon number) for highly inclined events increases with the geomagnetic angle, which confirms the geomagnetic origin of radio emission in cosmic ray air showers.

Published
2007

6. Progress in air shower radio measurements: Detection of distant events

Author

W.D. Apel, T. Asch, A.F. Badea, L. Bähren, K. Bekk, A. Bercuci, M. Bertaina, P.L. Biermann, J. Blümer, H. Bozdog, I.M. Brancus, S. Buitink, M. Brüggemann, P. Buchholz, H. Butcher, A. Chiavassa, F. Cossavella, K. Daumiller, F. Di Pierro, P. Doll, R. Engel, H. Falcke, H. Gemmeke, P.L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J.R. Hörandel, A. Horneffer, T. Huege, K.H. Kampert, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, H.J. Mathes, H.J. Mayer, C. Meurer, J. Milke, B. Mitrica, C. Morello, G. Navarra, S. Nehls, A. Nigl, R. Obenland, J. Oehlschläger, S. Ostapchenko, S. Over, M. Petcu, J. Petrovic, T. Pierog, S. Plewnia, H. Rebel, A. Risse, M. Roth, H. Schieler, O. Sima, K. Singh, M. Stümpert, G. Toma, G.C. Trinchero, H. Ulrich, J. van Buren, W. Walkowiak, A. Weindl, J. Wochele, J. Zabierowski, J.A. Zensus, and D. Zimmermann

Subjects
Physics, LOPES, business.industry, Astronomy, Radio equipment, Astrophysics (astro-ph), FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Shower, Air shower, Optics, Pulse-amplitude modulation, Detection theory, business, Coherence (physics)
Abstract

Data taken during half a year of operation of 10 LOPES antennas (LOPES-10), triggered by EAS observed with KASCADE-Grande have been analysed. We report about the analysis of correlations of radio signals measured by LOPES-10 with extensive air shower events reconstructed by KASCADE-Grande, including shower cores at large distances. The efficiency of detecting radio signals induced by air showers up to distances of 700 m from the shower axis has been investigated. The results are discussed with special emphasis on the effects of the reconstruction accuracy for shower core and arrival direction on the coherence of the measured radio signal. In addition, the correlations of the radio pulse amplitude with the primary cosmic ray energy and with the lateral distance from the shower core are studied., Comment: Accepted for publication in Astroparticle Physics

Published
2006

7. Frequency spectra of cosmic ray air shower radio emission measured with LOPES

Author

A. Nigl, W. D. Apel, J. C. Arteaga, T. Asch, J. Auffenberg, F. Badea, L. Bähren, K. Bekk, M. Bertaina, P. L. Biermann, J. Blümer, H. Bozdog, I. M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, H. Butcher, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, H. Falcke, H. Gemmeke, P. L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J. R. Hörandel, A. Horneffer, T. Huege, P. G. Isar, K.-H. Kampert, D. Kickelbick, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, P. Łuczak, M. Manewald, H. J. Mathes, H. J. Mayer, C. Meurer, B. Mitrica, C. Morello, G. Navarra, S. Nehls, J. Oehlschläger, S. Ostapchenko, S. Over, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, A. Saftoiu, H. Schieler, A. Schmidt, F. Schröder, O. Sima, K. Singh, M. Stümpert, G. Toma, G. C. Trinchero, H. Ulrich, J. van Buren, W. Walkowiak, A. Weindl, J. Wochele, J. Zabierowski, and J. A. Zensus

Subjects
Physics, LOPES, Frequency band, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, LOFAR, Astrophysics::Cosmology and Extragalactic Astrophysics, Spectral line, Air shower, KASCADE, Space and Planetary Science, Spectral slope
Abstract

AIMS: We wish to study the spectral dependence of the radio emission from cosmic-ray air showers around 100 PeV (1017 eV). METHODS: We observe short radio pulses in a broad frequency band with the dipole-interferometer LOPES (LOFAR Prototype Station), which is triggered by a particle detector array named Karlsruhe Shower Core and Array Detector (KASCADE). LOFAR is the Low Frequency Array. For this analysis, 23 strong air shower events are selected using parameters from KASCADE. RESULTS: The resulting electric field spectra fall off to higher frequencies. An average electric field spectrum is fitted with an exponential, or alternatively, with a power law. The spectral slope obtained is not consistent within uncertainties and it is slightly steeper than the slope obtained from Monte Carlo simulations based on air showers simulated with CORSIKA (Cosmic Ray Simulations for KASCADE). One of the strongest events was measured during thunderstorm activity in the vicinity of LOPES and shows the longest pulse length measured of 110 ns and a spectral slope of -3.6. CONCLUSIONS: We show with two different methods that frequency spectra from air shower radio emission can be reconstructed on event-by-event basis, with only two dozen dipole antennae simultaneously over a broad range of frequencies. According to the obtained spectral slopes, the maximum power is emitted below 40 MHz. Furthermore, the decrease in power to higher frequencies indicates a loss in coherence determined by the shower disc thickness. We conclude that a broader bandwidth, larger collecting area, and longer baselines, as will be provided by LOFAR, are necessary to further investigate the relation of the coherence, pulse length, and spectral slope of cosmic ray air showers., Comment: 13 pages, 21 figures. Nigl, A. et al. (LOPES Collaboration), Frequency spectra of cosmic ray air shower radio emission measured with LOPES, accepted by A&A on 17/06/2008

Published
2008

8. Direction identification in radio images of cosmic-ray air showers detected with LOPES and KASCADE

Author

A. Nigl, W. D. Apel, J. C. Arteaga, T. Asch, J. Auffenberg, F. Badea, L. Bähren, K. Bekk, M. Bertaina, P. L. Biermann, J. Blümer, H. Bozdog, I. M. Brancus, M. Brüggemann, P. Buchholz, S. Buitink, H. Butcher, E. Cantoni, A. Chiavassa, F. Cossavella, K. Daumiller, V. de Souza, F. Di Pierro, P. Doll, R. Engel, H. Falcke, H. Gemmeke, P. L. Ghia, R. Glasstetter, C. Grupen, A. Haungs, D. Heck, J. R. Hörandel, A. Horneffer, T. Huege, P. G. Isar, K.-H. Kampert, D. Kickelbick, Y. Kolotaev, O. Krömer, J. Kuijpers, S. Lafebre, P. Łuczak, M. Manewald, H. J. Mathes, H. J. Mayer, C. Meurer, B. Mitrica, C. Morello, G. Navarra, S. Nehls, J. Oehlschläger, S. Ostapchenko, S. Over, M. Petcu, T. Pierog, J. Rautenberg, H. Rebel, M. Roth, A. Saftoiu, H. Schieler, A. Schmidt, F. Schröder, O. Sima, K. Singh, M. Stümpert, G. Toma, G. C. Trinchero, H. Ulrich, J. van Buren, W. Walkowiak, A. Weindl, J. Wochele, J. Zabierowski, and J. A. Zensus

Subjects
Physics, LOPES, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Radius, Astrophysics::Cosmology and Extragalactic Astrophysics, Curvature, Particle detector, Air shower, KASCADE, Space and Planetary Science, Angular resolution
Abstract

AIMS: We want to understand the emission mechanism of radio emission from air showers to determine the origin of high-energy cosmic rays. Therefore, we study the geometry of the air shower radio emission measured with LOPES and search for systematic effects between the direction determined on the radio signal and the direction provided by the particle detector array KASCADE. METHODS: We produce 4D radio images on time-scales of nanoseconds using digital beam-forming. Each pixel of the image is calculated for three spatial dimensions and as a function of time. The third spatial dimension is obtained by calculating the beam focus for a range of curvature radii fitted to the signal wave front. We search this multi-dimensional parameter space for the direction of maximum coherence of the air shower radio signal and compare it to the direction provided by KASCADE. RESULTS: The maximum radio emission of air showers is obtained for curvature radii being larger than 3 km. We find that the direction of the emission maximum can change when optimizing the curvature radius. Furthermore, we find a tentative increase of the curvature radius to lower elevations, where the air showers pass through a larger atmospheric depth. CONCLUSIONS: We conclude that the angular resolution of LOPES is sufficient to determine the direction which maximizes the observed electric field amplitude. However, the statistical uncertainty of the directions is not determined by the resolution of LOPES, but by the uncertainty of the curvature radius. We do not find any systematic deviation between the directions determined from the radio signal and from the detected particles. This result places a strong supportive argument for the use of the radio technique to study the origin of high-energy cosmic rays., Comment: 8 pages, 13 figures. Nigl, A. et al. (LOPES Collaboration), Direction identification in radio images of cosmic rays detected with LOPES and KASCADE, accepted by A&A on 12/06/2008

Published
2008

9. Radio emission in atmospheric air showers: Results of LOPES-10

Author

A Haungs, W D Apel, T Asch, F Badea, L Bähren, K Bekk, A Bercuci, M Bertaina, P L Biermann, J Blümer, H Bozdog, I M Brancus, M Brüggemann, P Buchholz, S Buitink, H Butcher, A Chiavassa, F Cossavella, K Daumiller, F Di Pierro, P Doll, R Engel, H Falcke, H Gemmeke, P L Ghia, R Glasstetter, C Grupen, A Hakenjos, D Heck, J R Hörandel, A Horneffer, T Huege, P G Isar, K H Kampert, Y Kolotaev, O Krömer, J Kuijpers, S Lafebre, H J Mathes, H J Mayer, C Meurer, J Milke, B Mitrica, C Morello, G Navarra, S Nehls, A Nigl, R Obenland, J Oehlschläger, S Ostapchenko, S Over, M Petcu, J Petrovic, T Pierog, S Plewnia, H Rebel, A Risse, M Roth, H Schieler, O Sima, K Singh, M Stümpert, G Toma, G C Trinchero, H Ulrich, J van Buren, W Walkowiak, A Weindl, J Wochele, J Zabierowski, J A Zensus, and D Zimmermann

Subjects
Atmospheric air, Physics, History, Meteorology, LOPES, Astronomy, Astrophysics (astro-ph), Measure (physics), FOS: Physical sciences, Astrophysics, Computer Science Applications, Education, Shower, Air shower
Abstract

LOPES is set up at the location of the KASCADE-Grande extensive air shower experiment in Karlsruhe, Germany and aims to measure and investigate radio pulses from Extensive Air Showers. Data taken during half a year of operation of 10 LOPES antennas (LOPES-10), triggered by showers observed with KASCADE-Grande have been analyzed. We report about results of correlations found of the measured radio signals by LOPES-10 with shower parameters., Comment: Proceedings of ARENA 06, June 2006, University of Northumbria, UK

Published
2007

10. Radio Emission in Atmospheric Air Showers: First Measurements with LOPES-30

Author

P G Isar, S Nehls, W D Apel, T Asch, F Badea, L Bähren, K Bekk, A Bercuci, M Bertaina, P L Biermann, J Blümer, H Bozdog, I M Brancus, M Brüggemann, P Buchholz, S Buitink, H Butcher, A Chiavassa, F Cossavella, K Daumiller, F Di Pierro, P Doll, R Engel, H Falcke, H Gemmeke, P L Ghia, R Glasstetter, C Grupen, A Hakenjos, A Haungs, D Heck, J R Hörandel, A Horneffer, T Huege, K H Kampert, Y Kolotaev, O Krömer, J Kuijpers, S Lafebre, H J Mathes, H J Mayer, C Meurer, J Milke, B Mitrica, C Morello, G Navarra, A Nigl, R Obenland, J Oehlschläger, S Ostapchenko, S Over, M Petcu, J Petrovic, T Pierog, S Plewnia, H Rebel, A Risse, M Roth, H Schieler, O Sima, K Singh, M Stümpert, G Toma, G C Trinchero, H Ulrich, J van Buren, W Walkowiak, A Weindl, J Wochele, J Zabierowski, J A Zensus, and D Zimmermann

Subjects
Atmospheric air, Physics, History, LOPES, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics, Computer Science Applications, Education, law.invention, Atmosphere, Shower, Air shower, law, Ultra-high-energy cosmic ray, Dipole antenna
Abstract

When Ultra High Energy Cosmic Rays interact with particles in the Earth's atmosphere, they produce a shower of secondary particles propagating toward the ground. LOPES-30 is an absolutely calibrated array of 30 dipole antennas investigating the radio emission from these showers in detail and clarifying if the technique is useful for largescale applications. LOPES-30 is co-located and measures in coincidence with the air shower experiment KASCADE-Grande. Status of LOPES-30 and first measurements are presented., Comment: Proceedings of ARENA 06, June 2006, University of Northumbria, UK

Published
2007

11. ADVANCED DETECTION METHODS OF RADIO SIGNALS FROM COSMIC RAYS FOR KASCADE GRANDE AND AUGER

Author

H. GEMMEKE, W. D. APEL, F. A. BADEA, L. BÄHREN, K. BEKK, A. BERCUCI, M. BERTAINA, P. L. BIERMANN, J. BLÜMER, H. BOZDOG, I. M. BRANCUS, M. BRÜGGEMANN, P. BUCHHOLZ, S. BUITINK, H. BUTCHER, A. CHIAVASSA, K. DAUMILLER, A. G. DE BRUYN, C. M. DE VOS, F. DI PIERRO, P. DOLL, R. ENGEL, H. FALCKE, P. L. GHIA, R. GLASSTETTER, C. GRUPEN, A. HAUNGS, D. HECK, J. R. HÖRANDEL, A. HORNEFFER, T. HUEGE, K.-H. KAMPERT, G. W. KANT, U. KLEIN, Y. KOLOTAEV, Y. KOOPMAN, O. KRÖMER, J. KUIJPERS, S. LAFEBRE, G. MAIER, H. J. MATHES, H. J. MAYERS, J. MILKE, B. MITRICA, C. MORELLO, G. NAVARRA, S. NEHLS, A. NIGL, R. OBENLAND, J. OEHLSCHLÄGER, S. OSTAPCHENKO, S. OVER, H. J. PEPPING, M. PETCU, J. PETROVIC, T. PIEROG, S. PLEWNIA, H. REBEL, A. RISSE, M. ROTH, H. SCHIELER, G. SCHOONDERBEEK, O. SIMA, M. STÜMPERT, G. TOMA, G. C. TRINCHERO, H. ULRICH, J. VAN BUREN, W. VAN CAPELLEN, W. WALKOWIAK, A. WEINDL, S. WIJNHOLDS, J. WOCHELE, J. ZABIEROWSKI, J. A. ZENSUS, and D. ZIMMERMANN

Published
2006

12. Absolute Calibration of the Lopes Antenna System

Author

S. NEHLS, W. D. APEL, F. BADEA, L. BÄHREN, K. BEKK, A. BERCUCI, M. BERTAINA, P. L. BIERMANN, J. BLÜMER, H. BOZDOG, I. M. BRANCUS, M. BRÜGGEMANN, P. BUCHHOLZ, S. BUITINK, H. BUTCHER, A. CHIAVASSA, K. DAUMILLER, A. G. de BRUYN, C. M. de VOS, F. di PIERRO, P. DOLL, R. ENGEL, H. FALCKE, H. GEMMEKE, P. L. GHIA, R. GLASSTETTER, C. GRUPEN, A. HAKENJOS, A. HAUNGS, D. HECK, J. R. HÖRANDEL, A. HORNEFFER, T. HUEGE, K.-H. KAMPERT, G. W. KANT, U. KLEIN, Y. KOLOTAEV, Y. KOOPMAN, O. KRÖMER, J. KUIJPERS, S. LAFEBRE, G. MAIER, H. J. MATHES, H. J. MAYER, J. MILKE, B. MITRICA, C. MORELLO, G. NAVARRA, A. NIGL, R. OBENLAND, J. OEHLSCHLÄGER, S. OSTAPCHENKO, S. OVER, H. J. PEPPING, M. PETCU, J. PETROVIC, T. PIEROG, S. PLEWNIA, H. REBEL, A. RISSE, M. ROTH, H. SCHIELER, G. SCHOONDERBEEK, O. SIMA, M. STÜMPERT, G. TOMA, G. C. TRINCHERO, H. ULRICH, J. VAN BUREN, W. VAN CAPELLEN, W. WALKOWIAK, A. WEINDL, S. WIJNHOLDS, J. WOCHELE, J. ZABIEROWSKI, J. A. ZENSUS, and D. ZIMMERMANN

Subjects
Physics, Nuclear and High Energy Physics, LOPES, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, Pulse duration, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Amplification factor, Atomic and Molecular Physics, and Optics, Optics, Earth's magnetic field, Electric field, Calibration, Ultra-high-energy cosmic ray, Antenna (radio), business
Abstract

Radio emission in extensive air showers arises from an interaction with the geomagnetic field and is subject of theoretical studies. This radio emission has advantages for the detection of high energy cosmic rays compared to secondary particle or fluorescence measurement methods. Radio antennas like the LOPES30 antenna system are suited to investigate this emission process by detecting the radio pulses. The characteristic observable parameters like electric field strength and pulse length require a calibration which was done with a reference radio source resulting in an amplification factor representing the system behavior in the environment of the KASCADE-Grande experiment. Knowing the amplification factor and the gain of the LOPES antennas LOPES30 is calibrated absolutely for systematic analyses of the radio emission., Comment: 5 pages, Proceedings of International Workshop on Acoustic and Radio EeV Neutrino detection Activities: ARENA, May 17-19, 2005, DESY Zeuthen

Published
2006

13. Radio detection of cosmic rays with LOPES

Author

A. HORNEFFER, W. D. APEL, F. BADEA, L. BÄHREN, K. BEKK, A. BERCUCI, M. BERTAINA, P. L. BIERMANN, J. BLÜMER, H. BOZDOG, I. M. BRANCUS, M. BRÜGGEMANN, P. BUCHHOLZ, S. BUITINK, H. BUTCHER, A. CHIAVASSA, K. DAUMILLER, A. G. DE BRUYN, C. M. DE VOS, F. DI PIERRO, P. DOLL, R. ENGEL, H. FALCKE, H. GEMMEKE, P. L. GHIA, R. GLASSTETTER, C. GRUPEN, A. HAUNGS, D. HECK, J. R. HÖRANDEL, T. HUEGE, K.-H. KAMPERT, G. W. KANT, U. KLEIN, Y. KOLOTAEV, Y. KOOPMAN, O. KRÖMER, J. KUIJPERS, S. LAFEBRE, G. MAIER, H. J. MATHES, H. J. MAYER, J. MILKE, B. MITRICA, C. MORELLO, G. NAVARRA, S. NEHLS, A. NIGL, R. OBENLAND, J. OEHLSCHLÄGER, S. OSTAPCHENKO, S. OVER, H. J. PEPPING, M. PETCU, J. PETROVIC, T. PIEROG, S. PLEWNIA, H. REBEL, A. RISSE, M. ROTH, H. SCHIELER, G. SCHOONDERBEEK, O. SIMA, M. STÜMPERT, G. TOMA, G. C. TRINCHERO, H. ULRICH, J. VAN BUREN, W. VAN CAPELLEN, W. WALKOWIAK, A. WEINDL, S. WIJNHOLDS, J. WOCHELE, J. ZABIEROWSKI, J. A. ZENSUS, and D. ZIMMERMANN

Published
2006

14. First search for atmospheric and extraterrestrial neutrino-induced cascades with the IceCube detector

Author

R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, D. Bindig, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S. Böser, O. Botner, J. Braun, A. M. Brown, S. Buitink, M. Carson, D. Chirkin, B. Christy, J. Clem, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, M. V. D’Agostino, M. Danninger, J. Daughhetee, J. C. Davis, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, M. Dierckxsens, J. Dreyer, J. P. Dumm, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, T. Feusels, K. Filimonov, C. Finley, T. Fischer-Wasels, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, M. Geisler, L. Gerhardt, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, J. A. Goodman, D. Grant, T. Griesel, A. Groß, S. Grullon, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, D. Heinen, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, J.-H. Köhne, G. Kohnen, H. Kolanoski, L. Köpke, S. Kopper, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, M. J. Larson, R. Lauer, R. Lehmann, J. Lünemann, J. Madsen, P. Majumdar, A. Marotta, R. Maruyama, K. Mase, H. S. Matis, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, U. Naumann, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, A. O’Murchadha, M. Ono, S. Panknin, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, T. Ruhe, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, M. Santander, S. Sarkar, K. Schatto, T. Schmidt, A. Schoenwald, A. Schukraft, A. Schultes, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Vehring, M. Voge, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, D. R. Williams, R. Wischnewski, H. Wissing, M. Wolf, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, P. Zarzhitsky, R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, D. Bindig, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S. Böser, O. Botner, J. Braun, A. M. Brown, S. Buitink, M. Carson, D. Chirkin, B. Christy, J. Clem, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, M. V. D’Agostino, M. Danninger, J. Daughhetee, J. C. Davis, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, M. Dierckxsens, J. Dreyer, J. P. Dumm, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, T. Feusels, K. Filimonov, C. Finley, T. Fischer-Wasels, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, M. Geisler, L. Gerhardt, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, J. A. Goodman, D. Grant, T. Griesel, A. Groß, S. Grullon, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, D. Heinen, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, J.-H. Köhne, G. Kohnen, H. Kolanoski, L. Köpke, S. Kopper, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, M. J. Larson, R. Lauer, R. Lehmann, J. Lünemann, J. Madsen, P. Majumdar, A. Marotta, R. Maruyama, K. Mase, H. S. Matis, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, U. Naumann, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, A. O’Murchadha, M. Ono, S. Panknin, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, T. Ruhe, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, M. Santander, S. Sarkar, K. Schatto, T. Schmidt, A. Schoenwald, A. Schukraft, A. Schultes, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Vehring, M. Voge, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, D. R. Williams, R. Wischnewski, H. Wissing, M. Wolf, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, and P. Zarzhitsky

Abstract

type:text

Published
2011

15. Limits on a muon flux from Kaluza-Klein dark matter annihilations in the Sun from the IceCube 22-string detector

Author

R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, D. J. Boersma, C. Bohm, J. Bolmont, O. Botner, L. Bradley, J. Braun, D. Breder, M. Carson, T. Castermans, D. Chirkin, B. Christy, J. Clem, S. Cohen, D. F. Cowen, M. V. D’Agostino, M. Danninger, C. T. Day, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, R. Ganugapati, L. Gerhardt, L. Gladstone, A. Goldschmidt, J. A. Goodman, R. Gozzini, D. Grant, T. Griesel, A. Groß, S. Grullon, R. M. Gunasingha, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, Y. Hasegawa, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, R. L. Imlay, M. Inaba, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, S. Knops, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, R. Lauer, R. Lehmann, D. Lennarz, A. Lucke, J. Lundberg, J. Lünemann, J. Madsen, P. Majumdar, R. Maruyama, K. Mase, H. S. Matis, C. P. McParland, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, H. Miyamoto, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, M. Ono, S. Panknin, S. Patton, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, N. Potthoff, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, C. Roucelle, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, D. Schneider, A. Schukraft, O. Schulz, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, K.-H. Sulanke, G. W. Sullivan, Q. Swillens, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, C. Terranova, S. Tilav, P. A. Toale, J. Tooker, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, A. Wiedemann, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, M. Schunck, R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, D. J. Boersma, C. Bohm, J. Bolmont, O. Botner, L. Bradley, J. Braun, D. Breder, M. Carson, T. Castermans, D. Chirkin, B. Christy, J. Clem, S. Cohen, D. F. Cowen, M. V. D’Agostino, M. Danninger, C. T. Day, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, J. Dreyer, J. P. Dumm, M. R. Duvoort, W. R. Edwards, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, R. Ganugapati, L. Gerhardt, L. Gladstone, A. Goldschmidt, J. A. Goodman, R. Gozzini, D. Grant, T. Griesel, A. Groß, S. Grullon, R. M. Gunasingha, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, Y. Hasegawa, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, R. L. Imlay, M. Inaba, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, S. Knops, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, R. Lauer, R. Lehmann, D. Lennarz, A. Lucke, J. Lundberg, J. Lünemann, J. Madsen, P. Majumdar, R. Maruyama, K. Mase, H. S. Matis, C. P. McParland, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, H. Miyamoto, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, M. Ono, S. Panknin, S. Patton, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, A. C. Pohl, R. Porrata, N. Potthoff, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, C. Roucelle, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, D. Schneider, A. Schukraft, O. Schulz, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, M. C. Stoufer, S. Stoyanov, E. A. Strahler, T. Straszheim, K.-H. Sulanke, G. W. Sullivan, Q. Swillens, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, C. Terranova, S. Tilav, P. A. Toale, J. Tooker, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, A. Wiedemann, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, and M. Schunck

Abstract

type:text

Published
2010

16. Search for a Lorentz-violating sidereal signal with atmospheric neutrinos in IceCube

Author

R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S. Böser, O. Botner, J. Braun, S. Buitink, M. Carson, D. Chirkin, B. Christy, J. Clem, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, M. V. D’Agostino, M. Danninger, J. C. Davis, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, M. Dierckxsens, J. Dreyer, J. P. Dumm, M. R. Duvoort, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, M. Geisler, L. Gerhardt, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, J. A. Goodman, D. Grant, T. Griesel, A. Groß, S. Grullon, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, J.-H. Köhne, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, M. J. Larson, R. Lauer, R. Lehmann, J. Lünemann, J. Madsen, P. Majumdar, A. Marotta, R. Maruyama, K. Mase, H. S. Matis, M. Matusik, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, U. Naumann, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, A. O’Murchadha, M. Ono, S. Panknin, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, T. Ruhe, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, M. Santander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, A. Schukraft, A. Schultes, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, K. Singh, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Voge, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, M. Wolf, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, P. Zarzhitsky, R. Abbasi, Y. Abdou, T. Abu-Zayyad, J. Adams, J. A. Aguilar, M. Ahlers, K. Andeen, J. Auffenberg, X. Bai, M. Baker, S. W. Barwick, R. Bay, J. L. Bazo Alba, K. Beattie, J. J. Beatty, S. Bechet, J. K. Becker, K.-H. Becker, M. L. Benabderrahmane, S. BenZvi, J. Berdermann, P. Berghaus, D. Berley, E. Bernardini, D. Bertrand, D. Z. Besson, M. Bissok, E. Blaufuss, J. Blumenthal, D. J. Boersma, C. Bohm, D. Bose, S. Böser, O. Botner, J. Braun, S. Buitink, M. Carson, D. Chirkin, B. Christy, J. Clem, F. Clevermann, S. Cohen, C. Colnard, D. F. Cowen, M. V. D’Agostino, M. Danninger, J. C. Davis, C. De Clercq, L. Demirörs, O. Depaepe, F. Descamps, P. Desiati, G. de Vries-Uiterweerd, T. DeYoung, J. C. Díaz-Vélez, M. Dierckxsens, J. Dreyer, J. P. Dumm, M. R. Duvoort, R. Ehrlich, J. Eisch, R. W. Ellsworth, O. Engdegård, S. Euler, P. A. Evenson, O. Fadiran, A. R. Fazely, A. Fedynitch, T. Feusels, K. Filimonov, C. Finley, M. M. Foerster, B. D. Fox, A. Franckowiak, R. Franke, T. K. Gaisser, J. Gallagher, M. Geisler, L. Gerhardt, L. Gladstone, T. Glüsenkamp, A. Goldschmidt, J. A. Goodman, D. Grant, T. Griesel, A. Groß, S. Grullon, M. Gurtner, C. Ha, A. Hallgren, F. Halzen, K. Han, K. Hanson, K. Helbing, P. Herquet, S. Hickford, G. C. Hill, K. D. Hoffman, A. Homeier, K. Hoshina, D. Hubert, W. Huelsnitz, J.-P. Hülß, P. O. Hulth, K. Hultqvist, S. Hussain, A. Ishihara, J. Jacobsen, G. S. Japaridze, H. Johansson, J. M. Joseph, K.-H. Kampert, A. Kappes, T. Karg, A. Karle, J. L. Kelley, N. Kemming, P. Kenny, J. Kiryluk, F. Kislat, S. R. Klein, J.-H. Köhne, G. Kohnen, H. Kolanoski, L. Köpke, D. J. Koskinen, M. Kowalski, T. Kowarik, M. Krasberg, T. Krings, G. Kroll, K. Kuehn, T. Kuwabara, M. Labare, S. Lafebre, K. Laihem, H. Landsman, M. J. Larson, R. Lauer, R. Lehmann, J. Lünemann, J. Madsen, P. Majumdar, A. Marotta, R. Maruyama, K. Mase, H. S. Matis, M. Matusik, K. Meagher, M. Merck, P. Mészáros, T. Meures, E. Middell, N. Milke, J. Miller, T. Montaruli, R. Morse, S. M. Movit, R. Nahnhauer, J. W. Nam, U. Naumann, P. Nießen, D. R. Nygren, S. Odrowski, A. Olivas, M. Olivo, A. O’Murchadha, M. Ono, S. Panknin, L. Paul, C. Pérez de los Heros, J. Petrovic, A. Piegsa, D. Pieloth, R. Porrata, J. Posselt, P. B. Price, M. Prikockis, G. T. Przybylski, K. Rawlins, P. Redl, E. Resconi, W. Rhode, M. Ribordy, A. Rizzo, J. P. Rodrigues, P. Roth, F. Rothmaier, C. Rott, T. Ruhe, D. Rutledge, B. Ruzybayev, D. Ryckbosch, H.-G. Sander, M. Santander, S. Sarkar, K. Schatto, S. Schlenstedt, T. Schmidt, A. Schukraft, A. Schultes, O. Schulz, M. Schunck, D. Seckel, B. Semburg, S. H. Seo, Y. Sestayo, S. Seunarine, A. Silvestri, K. Singh, A. Slipak, G. M. Spiczak, C. Spiering, M. Stamatikos, T. Stanev, G. Stephens, T. Stezelberger, R. G. Stokstad, S. Stoyanov, E. A. Strahler, T. Straszheim, G. W. Sullivan, Q. Swillens, H. Taavola, I. Taboada, A. Tamburro, O. Tarasova, A. Tepe, S. Ter-Antonyan, S. Tilav, P. A. Toale, S. Toscano, D. Tosi, D. Turčan, N. van Eijndhoven, J. Vandenbroucke, A. Van Overloop, J. van Santen, M. Voge, B. Voigt, C. Walck, T. Waldenmaier, M. Wallraff, M. Walter, Ch. Weaver, C. Wendt, S. Westerhoff, N. Whitehorn, K. Wiebe, C. H. Wiebusch, G. Wikström, D. R. Williams, R. Wischnewski, H. Wissing, M. Wolf, K. Woschnagg, C. Xu, X. W. Xu, G. Yodh, YOSHIDA, Shigeru, and P. Zarzhitsky

Abstract

type:text

Published
2010

17. Air shower radio detection with LOPES

Author

J Blümer, W D Apel, J C Arteaga, T Asch, J Auffenberg, F Badea, L Bähren, K Bekk, M Bertaina, P L Biermann, H Bozdog, I M Brancus, M Brüggemann, P Buchholz, S Buitink, H Butcher, A Chiavassa, F Cossavella, K Daumiller, V de Souza, F Di Pierro, P Doll, R Engel, H Falcke, H Gemmeke, P L Ghia, R Glasstetter, C Grupen, A Haungs, D Heck, J R Hörandel, A Horneffer, T Huege, P G Isar, K-H Kampert, D Kickelbick, Y Kolotaev, O Krömer, J Kuijpers, S Lafebre, P Luczak, H J Mathes, H J Mayer, C Meurer, J Milke, B Mitrica, C Morello, G Navarra, S Nehls, A Nigl, J Oehlschläger, S Ostapchenko, S Over, M Petcu, J Petrovic, T Pierog, S Plewnia, J Rautenberg, H Rebel, M Roth, A Saftoiu, H Schieler, O Sima, K Singh, M Stümpert, G Toma, G C Trinchero, H Ulrich, J van Buren, W Walkowiak, A Weindl, J Wochele, J Zabierowski, J A Zensus, and the LOPES Collaboration

Subjects
Physics, History, Data processing, LOPES, business.industry, Detector, Electrical engineering, Digital radio, Computer Science Applications, Education, Interferometry, Air shower, High bandwidth, business, Radio detection
Abstract

LOPES is an array of 30 radio antenna co-located with the KASCADE-Grande extensive air shower detector in Karlsruhe, Germany. It is designed as a digital radio interferometer for the detection of radio emission from extensive air showers. LOPES features high bandwidth and fast data processing. A unique asset is the concurrent operation with KASCADE-Grande. We report about the progress in understanding the radio signals measured by LOPES. In addition, the status and further perspectives of LOPES and the large scale application of this novel detection technique are sketched.

Published
2008

18. Limits on neutrino emission from gamma-ray bursts with the 40 string IceCube detector.

Author

Abbasi R, Abdou Y, Abu-Zayyad T, Adams J, Aguilar JA, Ahlers M, Andeen K, Auffenberg J, Bai X, Baker M, Barwick SW, Bay R, Bazo Alba JL, Beattie K, Beatty JJ, Bechet S, Becker JK, Becker KH, Benabderrahmane ML, BenZvi S, Berdermann J, Berghaus P, Berley D, Bernardini E, Bertrand D, Besson DZ, Bindig D, Bissok M, Blaufuss E, Blumenthal J, Boersma DJ, Bohm C, Bose D, Böser S, Botner O, Braun J, Brown AM, Buitink S, Carson M, Chirkin D, Christy B, Clem J, Clevermann F, Cohen S, Colnard C, Cowen DF, D'Agostino MV, Danninger M, Daughhetee J, Davis JC, De Clercq C, Demirörs L, Depaepe O, Descamps F, Desiati P, de Vries-Uiterweerd G, DeYoung T, Díaz-Vélez JC, Dierckxsens M, Dreyer J, Dumm JP, Ehrlich R, Eisch J, Ellsworth RW, Engdegård O, Euler S, Evenson PA, Fadiran O, Fazely AR, Fedynitch A, Feusels T, Filimonov K, Finley C, Fischer-Wasels T, Foerster MM, Fox BD, Franckowiak A, Franke R, Gaisser TK, Gallagher J, Geisler M, Gerhardt L, Gladstone L, Glüsenkamp T, Goldschmidt A, Goodman JA, Grant D, Griesel T, Gross A, Grullon S, Gurtner M, Ha C, Hallgren A, Halzen F, Han K, Hanson K, Heinen D, Helbing K, Herquet P, Hickford S, Hill GC, Hoffman KD, Homeier A, Hoshina K, Hubert D, Huelsnitz W, Hülss JP, Hulth PO, Hultqvist K, Hussain S, Ishihara A, Jacobsen J, Japaridze GS, Johansson H, Joseph JM, Kampert KH, Kappes A, Karg T, Karle A, Kelley JL, Kemming N, Kenny P, Kiryluk J, Kislat F, Klein SR, Köhne JH, Kohnen G, Kolanoski H, Köpke L, Kopper S, Koskinen DJ, Kowalski M, Kowarik T, Krasberg M, Krings T, Kroll G, Kuehn K, Kuwabara T, Labare M, Lafebre S, Laihem K, Landsman H, Larson MJ, Lauer R, Lehmann R, Lünemann J, Madsen J, Majumdar P, Marotta A, Maruyama R, Mase K, Matis HS, Meagher K, Merck M, Mészáros P, Meures T, Middell E, Milke N, Miller J, Montaruli T, Morse R, Movit SM, Nahnhauer R, Nam JW, Naumann U, Niessen P, Nygren DR, Odrowski S, Olivas A, Olivo M, O'Murchadha A, Ono M, Panknin S, Paul L, Pérez de los Heros C, Petrovic J, Piegsa A, Pieloth D, Porrata R, Posselt J, Price PB, Prikockis M, Przybylski GT, Rawlins K, Redl P, Resconi E, Rhode W, Ribordy M, Rizzo A, Rodrigues JP, Roth P, Rothmaier F, Rott C, Ruhe T, Rutledge D, Ruzybayev B, Ryckbosch D, Sander HG, Santander M, Sarkar S, Schatto K, Schmidt T, Schoenwald A, Schukraft A, Schultes A, Schulz O, Schunck M, Seckel D, Semburg B, Seo SH, Sestayo Y, Seunarine S, Silvestri A, Slipak A, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stephens G, Stezelberger T, Stokstad RG, Stoyanov S, Strahler EA, Straszheim T, Sullivan GW, Swillens Q, Taavola H, Taboada I, Tamburro A, Tarasova O, Tepe A, Ter-Antonyan S, Tilav S, Toale PA, Toscano S, Tosi D, Turčan D, van Eijndhoven N, Vandenbroucke J, Van Overloop A, van Santen J, Vehring M, Voge M, Voigt B, Walck C, Waldenmaier T, Wallraff M, Walter M, Weaver C, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch CH, Williams DR, Wischnewski R, Wissing H, Wolf M, Woschnagg K, Xu C, Xu XW, Yodh G, Yoshida S, and Zarzhitsky P

Abstract

IceCube has become the first neutrino telescope with a sensitivity below the TeV neutrino flux predicted from gamma-ray bursts if gamma-ray bursts are responsible for the observed cosmic-ray flux above 10(18)  eV. Two separate analyses using the half-complete IceCube detector, one a dedicated search for neutrinos from pγ interactions in the prompt phase of the gamma-ray burst fireball and the other a generic search for any neutrino emission from these sources over a wide range of energies and emission times, produced no evidence for neutrino emission, excluding prevailing models at 90% confidence.

Published
2011
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19. Extending the search for neutrino point sources with IceCube above the horizon.

Author

Abbasi R, Abdou Y, Abu-Zayyad T, Adams J, Aguilar JA, Ahlers M, Andeen K, Auffenberg J, Bai X, Baker M, Barwick SW, Bay R, Bazo Alba JL, Beattie K, Beatty JJ, Bechet S, Becker JK, Becker KH, Benabderrahmane ML, Berdermann J, Berghaus P, Berley D, Bernardini E, Bertrand D, Besson DZ, Bissok M, Blaufuss E, Boersma DJ, Bohm C, Botner O, Bradley L, Braun J, Breder D, Carson M, Castermans T, Chirkin D, Christy B, Clem J, Cohen S, Cowen DF, D'Agostino MV, Danninger M, Day CT, De Clercq C, Demirörs L, Depaepe O, Descamps F, Desiati P, de Vries-Uiterweerd G, DeYoung T, Díaz-Vélez JC, Dreyer J, Dumm JP, Duvoort MR, Edwards WR, Ehrlich R, Eisch J, Ellsworth RW, Engdegård O, Euler S, Evenson PA, Fadiran O, Fazely AR, Feusels T, Filimonov K, Finley C, Foerster MM, Fox BD, Franckowiak A, Franke R, Gaisser TK, Gallagher J, Ganugapati R, Gerhardt L, Gladstone L, Goldschmidt A, Goodman JA, Gozzini R, Grant D, Griesel T, Gross A, Grullon S, Gunasingha RM, Gurtner M, Ha C, Hallgren A, Halzen F, Han K, Hanson K, Hasegawa Y, Helbing K, Herquet P, Hickford S, Hill GC, Hoffman KD, Homeier A, Hoshina K, Hubert D, Huelsnitz W, Hülss JP, Hulth PO, Hultqvist K, Hussain S, Imlay RL, Inaba M, Ishihara A, Jacobsen J, Japaridze GS, Johansson H, Joseph JM, Kampert KH, Kappes A, Karg T, Karle A, Kelley JL, Kemming N, Kenny P, Kiryluk J, Kislat F, Klein SR, Knops S, Kohnen G, Kolanoski H, Köpke L, Koskinen DJ, Kowalski M, Kowarik T, Krasberg M, Krings T, Kroll G, Kuehn K, Kuwabara T, Labare M, Lafebre S, Laihem K, Landsman H, Lauer R, Lehmann R, Lennarz D, Lundberg J, Lünemann J, Madsen J, Majumdar P, Maruyama R, Mase K, Matis HS, McParland CP, Meagher K, Merck M, Mészáros P, Meures T, Middell E, Milke N, Miyamoto H, Montaruli T, Morse R, Movit SM, Nahnhauer R, Nam JW, Niessen P, Nygren DR, Odrowski S, Olivas A, Olivo M, Ono M, Panknin S, Patton S, Paul L, Pérez de los Heros C, Petrovic J, Piegsa A, Pieloth D, Pohl AC, Porrata R, Potthoff N, Price PB, Prikockis M, Przybylski GT, Rawlins K, Redl P, Resconi E, Rhode W, Ribordy M, Rizzo A, Rodrigues JP, Roth P, Rothmaier F, Rott C, Roucelle C, Rutledge D, Ruzybayev B, Ryckbosch D, Sander HG, Sarkar S, Schatto K, Schlenstedt S, Schmidt T, Schneider D, Schukraft A, Schulz O, Schunck M, Seckel D, Semburg B, Seo SH, Sestayo Y, Seunarine S, Silvestri A, Slipak A, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stephens G, Stezelberger T, Stokstad RG, Stoufer MC, Stoyanov S, Strahler EA, Straszheim T, Sullivan GW, Swillens Q, Taboada I, Tamburro A, Tarasova O, Tepe A, Ter-Antonyan S, Terranova C, Tilav S, Toale PA, Tooker J, Tosi D, Turcan D, van Eijndhoven N, Vandenbroucke J, Van Overloop A, van Santen J, Voigt B, Walck C, Waldenmaier T, Wallraff M, Walter M, Wendt C, Westerhoff S, Whitehorn N, Wiebe K, Wiebusch CH, Wiedemann A, Wikström G, Williams DR, Wischnewski R, Wissing H, Woschnagg K, Xu C, Xu XW, Yodh G, and Yoshida S

Abstract

Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be included by suppressing the background through energy-sensitive cuts. This improves the sensitivity above PeV energies, previously not accessible for declinations of more than a few degrees below the horizon due to the absorption of neutrinos in Earth. We present results based on data collected with 22 strings of IceCube, extending its field of view and energy reach for point source searches. No significant excess above the atmospheric background is observed in a sky scan and in tests of source candidates. Upper limits are reported, which for the first time cover point sources in the southern sky up to EeV energies.

Published
2009
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20. Limits on a muon flux from neutralino annihilations in the sun with the IceCube 22-string detector.

Author

Abbasi R, Abdou Y, Ackermann M, Adams J, Ahlers M, Andeen K, Auffenberg J, Bai X, Baker M, Barwick SW, Bay R, Bazo Alba JL, Beattie K, Beatty JJ, Bechet S, Becker JK, Becker KH, Benabderrahmane ML, Berdermann J, Berghaus P, Berley D, Bernardini E, Bertrand D, Besson DZ, Bissok M, Blaufuss E, Boersma DJ, Bohm C, Bolmont J, Böser S, Botner O, Bradley L, Braun J, Breder D, Burgess T, Castermans T, Chirkin D, Christy B, Clem J, Cohen S, Cowen DF, D'Agostino MV, Danninger M, Day CT, De Clercq C, Demirörs L, Depaepe O, Descamps F, Desiati P, de Vries-Uiterweerd G, Deyoung T, Diaz-Velez JC, Dreyer J, Dumm JP, Duvoort MR, Edwards WR, Ehrlich R, Eisch J, Ellsworth RW, Engdegård O, Euler S, Evenson PA, Fadiran O, Fazely AR, Feusels T, Filimonov K, Finley C, Foerster MM, Fox BD, Franckowiak A, Franke R, Gaisser TK, Gallagher J, Ganugapati R, Gerhardt L, Gladstone L, Goldschmidt A, Goodman JA, Gozzini R, Grant D, Griesel T, Gross A, Grullon S, Gunasingha RM, Gurtner M, Ha C, Hallgren A, Halzen F, Han K, Hanson K, Hasegawa Y, Heise J, Helbing K, Herquet P, Hickford S, Hill GC, Hoffman KD, Hoshina K, Hubert D, Huelsnitz W, Hülss JP, Hulth PO, Hultqvist K, Hussain S, Imlay RL, Inaba M, Ishihara A, Jacobsen J, Japaridze GS, Johansson H, Joseph JM, Kampert KH, Kappes A, Karg T, Karle A, Kelley JL, Kenny P, Kiryluk J, Kislat F, Klein SR, Klepser S, Knops S, Kohnen G, Kolanoski H, Köpke L, Kowalski M, Kowarik T, Krasberg M, Kuehn K, Kuwabara T, Labare M, Lafebre S, Laihem K, Landsman H, Lauer R, Leich H, Lennarz D, Lucke A, Lundberg J, Lünemann J, Madsen J, Majumdar P, Maruyama R, Mase K, Matis HS, McParland CP, Meagher K, Merck M, Mészáros P, Middell E, Milke N, Miyamoto H, Mohr A, Montaruli T, Morse R, Movit SM, Münich K, Nahnhauer R, Nam JW, Niessen P, Nygren DR, Odrowski S, Olivas A, Olivo M, Ono M, Panknin S, Patton S, Pérez de Los Heros C, Petrovic J, Piegsa A, Pieloth D, Pohl AC, Porrata R, Potthoff N, Price PB, Prikockis M, Przybylski GT, Rawlins K, Redl P, Resconi E, Rhode W, Ribordy M, Rizzo A, Rodrigues JP, Roth P, Rothmaier F, Rott C, Roucelle C, Rutledge D, Ryckbosch D, Sander HG, Sarkar S, Satalecka K, Schlenstedt S, Schmidt T, Schneider D, Schukraft A, Schulz O, Schunck M, Seckel D, Semburg B, Seo SH, Sestayo Y, Seunarine S, Silvestri A, Slipak A, Spiczak GM, Spiering C, Stamatikos M, Stanev T, Stephens G, Stezelberger T, Stokstad RG, Stoufer MC, Stoyanov S, Strahler EA, Straszheim T, Sulanke KH, Sullivan GW, Swillens Q, Taboada I, Tarasova O, Tepe A, Ter-Antonyan S, Terranova C, Tilav S, Tluczykont M, Toale PA, Tosi D, Turcan D, van Eijndhoven N, Vandenbroucke J, Van Overloop A, Voigt B, Walck C, Waldenmaier T, Walter M, Wendt C, Westerhoff S, Whitehorn N, Wiebusch CH, Wiedemann A, Wikström G, Williams DR, Wischnewski R, Wissing H, Woschnagg K, Xu XW, Yodh G, and Yoshida S

Abstract

A search for muon neutrinos from neutralino annihilations in the Sun has been performed with the IceCube 22-string neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atmospheric background has been observed. Upper limits have been obtained on the annihilation rate of captured neutralinos in the Sun and converted to limits on the weakly interacting massive particle (WIMP) proton cross sections for WIMP masses in the range 250-5000 GeV. These results are the most stringent limits to date on neutralino annihilation in the Sun.

Published
2009
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21. Detection and imaging of atmospheric radio flashes from cosmic ray air showers.

Author

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, and Zimmermann D

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.

Published
2005
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