Publications (94)
Experimental evidence for the sensitivity of the air-shower radio signal to the longitudinal shower development
W. D. Apel, J. C. Arteaga, L. Bähren +56
We observe a correlation between the slope of radio lateral distributions, and the mean muon pseudorapidity of 59 individual cosmic-ray-air-shower events. The radio lateral distrib…
LOPES 3D - vectorial measurements of radio emission from cosmic ray induced air showers
W. D. Apel, J. C. Arteaga, L. Bähren +52
LOPES 3D is able to measure all three components of the electric field vector of the radio emission from air showers. This allows a better comparison with emission models. The meas…
The Pierre Auger Observatory: Contributions to the 35th International Cosmic Ray Conference (ICRC 2017)
The Pierre Auger Collaboration, A. Aab, P. Abreu +394
Contributions of the Pierre Auger Collaboration to the 35th International Cosmic Ray Conference (ICRC 2017), 12-20 July 2017, Bexco, Busan, Korea.
Recent results from the KASCADE-Grande cosmic-ray experiment --- Test of hadronic interaction models with air-shower data
Jörg R. Hörandel, W. D. Apel, J. C. Arteaga-Velázquez +49
Cosmic rays provide an unique approach to study hadronic interactions at high energies in the kinematic forward direction. The KASCADE air shower experiment was the first to conduc…
KASCADE-Grande - Contributions to the 32nd International Cosmic Ray Conference, Beijing, August, 2011
W. D. Apel, J. C. Arteaga-Velazquez, K. Bekk +57
Contributions of the KASCADE-Grande Collaboration to the 32nd International Cosmic Ray Conference, Beijing, August, 2011.
The energy-spectrum of light primaries in the range from 10^{16.6} to 10^{18.2} eV
S. Schoo, W. D. Apel, J. C. Arteaga-Velazquez +54
Data of the Grande extension of the KASCADE experiment allows us to study extensive air showers induced by primary cosmic rays with energies above 10^{16} eV. The energy of an even…
The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +495
In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a…
The wavefront of the radio signal emitted by cosmic ray air showers
W. D. Apel, J. C. Arteaga-Velázquez, L. Bähren +53
Analyzing measurements of the LOPES antenna array together with corresponding CoREAS simulations for more than 300 measured events with energy above eV and zenith angles…
Spectral Calibration of the Fluorescence Telescopes of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +403
We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the Pierre Auger Observatory. We used a portable light source based…
Energy spectra of KASCADE-Grande based on shower size measurements and different hadronic interaction models
D. Kang, W. D. Apel, J. C. Arteaga-Velazquez +54
KASCADE-Grande is dedicated for investigations of cosmic-ray air showers in the primary energy range from 10 PeV to 1 EeV. The multi-detector system allows us to reconstruct charge…
Muon Counting using Silicon Photomultipliers in the AMIGA detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +422
AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory designed to extend its energy range of detection and to directly measure the muon…
Calibrating the absolute amplitude scale for air showers measured at LOFAR
A. Nelles, J. R. Hörandel, T. Karskens +74
Air showers induced by cosmic rays create nanosecond pulses detectable at radio frequencies. These pulses have been measured successfully in the past few years at the LOw Frequency…
Pierre Auger Observatory and Telescope Array: Joint Contributions to the 33rd International Cosmic Ray Conference (ICRC 2013)
The Telescope Array, Pierre Auger Collaborations, : +619
Joint contributions of the Pierre Auger and Telescope Array Collaborations to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013: cross-calibration of…
Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger Observatory. The fit h…
Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +436
The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combinat…
Reconstruction of the energy and depth of maximum of cosmic-ray air-showers from LOPES radio measurements
W. D. Apel, J. C. Arteaga-Velazquez, L. Bähren +53
LOPES is a digital radio interferometer located at Karlsruhe Institute of Technology (KIT), Germany, which measures radio emission from extensive air showers at MHz frequencies in…
Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array
The IceCube Collaboration, M. G. Aartsen, K. Abraham +863
This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured…
Calibration of the Logarithmic-Periodic Dipole Antenna (LPDA) Radio Stations at the Pierre Auger Observatory using an Octocopter
The Pierre Auger Collaboration, A. Aab, P. Abreu +402
An in-situ calibration of a logarithmic periodic dipole antenna with a frequency coverage of 30 MHz to 80 MHz is performed. Such antennas are part of a radio station system used fo…
Comparing LOPES measurements of air-shower radio emission with REAS 3.11 and CoREAS simulations
W. D. Apel, J. C. Arteaga, L. Bähren +52
Cosmic ray air showers emit radio pulses at MHz frequencies, which can be measured with radio antenna arrays - like LOPES at the Karlsruhe Institute of Technology in Germany. To im…
Ankle-like Feature in the Energy Spectrum of Light Elements of Cosmic Rays Observed with KASCADE-Grande
W. D. Apel, J. C. Arteaga-Velà zquez, K. Bekk +54
Recent results of the KASCADE-Grande experiment provided evidence for a mild knee-like structure in the all-particle spectrum of cosmic rays at $E = 10^{16.92 \pm 0.10} \, \mathrm{…
Science Case for a Wide Field-of-View Very-High-Energy Gamma-Ray Observatory in the Southern Hemisphere
A. Albert, R. Alfaro, H. Ashkar +100
We outline the science motivation for SGSO, the Southern Gamma-Ray Survey Observatory. SGSO will be a next-generation wide field-of-view gamma-ray survey instrument, sensitive to g…
A Targeted Search for Point Sources of EeV Neutrons
The Pierre Auger Collaboration, A. Aab, P. Abreu +482
A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of…
Results from the KASCADE-Grande Data Analysis
D. Kang, W. D. Apel, J. C. Arteaga-Velázquez +45
KASCADE-Grande and its original array of KASCADE were dedicated to measure individual air showers of cosmic rays with great detail in the primary energy range of 100 TeV up to 1 Ee…
Results from recent analysis of KASCADE-Grande data
D. Kang, J. C. Arteaga-Velázquez, M. Bertaina +22
KASCADE and its extension array of KASCADE-Grande were devoted to measure individual air showers of cosmic rays in the primary energy range of 100 TeV to 1 EeV. The experiment has…
Probing the evolution of the EAS muon content in the atmosphere with KASCADE-Grande
Grande Collaboration, W. D. Apel, J. C. Arteaga-Velázquez +47
The evolution of the muon content of very high energy air showers (EAS) in the atmosphere is investigated with data of the KASCADE-Grande observatory. For this purpose, the muon at…
A targeted search for point sources of EeV photons with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several…
Latest results from the KASCADE-Grande data analysis
D. Kang, A. Haungs, W. D. Apel +45
Over the past 20 years, KASCADE and its extension KASCADE-Grande were dedicated to measure high-energy cosmic rays with primary energies of 100 TeV to 1 EeV. The data accumulation…
Highlights from the Pierre Auger Observatory
Antoine Letessier-Selvon, A. Aab, P. Abreu +494
The Pierre Auger Observatory is the world's largest cosmic ray observatory. Our current exposure reaches nearly 40,000 km str and provides us with an unprecedented quality data…
Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496
We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…
Search for High-energy Neutrinos from Binary Neutron Star Merger GW170817 with ANTARES, IceCube, and the Pierre Auger Observatory
A. Albert, M. Andre, M. Anghinolfi +1931
The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merg…
Antennas for the Detection of Radio Emission Pulses from Cosmic-Ray induced Air Showers at the Pierre Auger Observatory
P. Abreu, M. Aglietta, M. Ahlers +512
The Pierre Auger Observatory is exploring the potential of the radio detection technique to study extensive air showers induced by ultra-high energy cosmic rays. The Auger Engineer…
Vectorial Radio Interferometry with LOPES 3D
D. Huber, W. D. Apel, J. C. Arteaga +53
One successful detection technique for high-energy cosmic rays is based on the radio signal emitted by the charged particles in an air shower. The LOPES experiment at Karlsruhe Ins…
Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +451
Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to directly measure the muon content of the particle…
LOPES 3D -- studies on the benefits of EAS-radio measurements with vertically aligned antennas
D. Huber, W. D. Apel, J. C. Arteaga-Velazquez +54
The LOPES experiment was a radio interferometer built at the existing air shower array KASCADE-Grande in Karlsruhe, Germany. The last configuration of LOPES was called LOPES 3D and…
Improved absolute calibration of LOPES measurements and its impact on the comparison with REAS 3.11 and CoREAS simulations
W. D. Apel, J. C. Arteaga-Velazquez, L. Bähren +55
LOPES was a digital antenna array detecting the radio emission of cosmic-ray air showers. The calibration of the absolute amplitude scale of the measurements was done using an exte…
The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015)
IceCube Collaboration, M. G. Aartsen, K. Abraham +884
We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino c…
The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493
Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air…
KASCADE-Grande Limits on the Isotropic Diffuse Gamma-Ray Flux between 100 TeV and 1 EeV
Grande Collaboration, W. D. Apel, J. C. Arteaga-Velázquez +48
KASCADE and KASCADE-Grande were multi-detector installations to measure individual air showers of cosmic rays at ultra-high energy. Based on data sets measured by KASCADE and KASCA…
Comparison of LOPES data and CoREAS simulations using a full detector simulation (ICRC2013)
K. Link, W. D. Apel, J. C. Arteaga-VelÃzquez +53
The LOPES experiment at the Karlsruhe Institute of Technology, Germany, has been measuring radio emission of air showers for almost 10 years. For a better understanding of the emis…
On noise treatment in radio measurements of cosmic ray air showers
F. G. Schröder, W. D. Apel, J. C. Arteaga +58
Precise measurements of the radio emission by cosmic ray air showers require an adequate treatment of noise. Unlike to usual experiments in particle physics, where noise always add…
Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +468
The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AER…
The KASCADE-Grande experiment: measurements of the all-particle energy spectrum of cosmic rays
J. C. Arteaga-Velázquez, W. D. Apel, K. Bekk +57
The all-particle energy spectrum as measured by the KASCADE-Grande experiment for E = 10^{16} - 10^{18} eV is presented within the framework of the QGSJET II/FLUKA hadronic interac…
Sensitivity of KASCADE-Grande data to hadronic interaction models
D. Kang, W. D. Apel, J. C. Arteaga-Velázquez +58
KASCADE-Grande is a large detector array dedicated for studies of high-energy cosmic rays in the primary energy range from 100 TeV to 1 EeV. The multi-detector concept of the exper…
Inferences on Mass Composition and Tests of Hadronic Interactions from 0.3 to 100 EeV using the water-Cherenkov Detectors of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +403
We present a new method for probing the hadronic interaction models at ultra-high energy and extracting details about mass composition. This is done using the time profiles of the…
High-energy cosmic rays measured with KASCADE-Grande
A. Haungs, W. D. Apel, J. C. Arteaga-Velazquez +54
The detection of high-energy cosmic rays above a few hundred TeV is realized by the observation of extensive air-showers. By using the multi-detector setup of KASCADE-Grande, energ…
Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande
Grande Collaboration, W. D. Apel, J. C. Arteaga-Velazquez +58
We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about eV. This structure is also seen in the all-partic…
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
D. Fuhrmann, W. D. Apel, J. C. Arteaga-Velazquez +54
The KASCADE-Grande experiment, located at KIT-Karlsruhe, Germany, consists of a large scintillator array for measurements of charged particles, N_ch, and of an array of shielded sc…
A search for ultra-high energy neutrinos in highly inclined events at the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +497
The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavours above 0.1 EeV. These interact through charged and neutral currents in the atmosphere…
Nanosecond-level time synchronization of autonomous radio detector stations for extensive air showers
The Pierre Auger Collaboration, A. Aab, P. Abreu +448
To exploit the full potential of radio measurements of cosmic-ray air showers at MHz frequencies, a detector timing synchronization within 1 ns is needed. Large distributed radio d…
Indication of anisotropy in arrival directions of ultra-high-energy cosmic rays through comparison to the flux pattern of extragalactic gamma-ray sources
The Pierre Auger Collaboration, A. Aab, P. Abreu +390
A new analysis of the dataset from the Pierre Auger Observatory provides evidence for anisotropy in the arrival directions of ultra-high-energy cosmic rays on an intermediate angul…
LOPES 3D reconfiguration and first measurements
D. Huber, W. D. Apel, J. C. Arteaga +56
The Radio detection technique of high-energy cosmic rays is based on the radio signal emitted by the charged particles in an air shower due to their deflection in the Earth's magne…
Description of Atmospheric Conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +499
Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a glob…
First Experimental Characterization of Microwave Emission from Cosmic Ray Air Showers
R. Smida, F. Werner, R. Engel +55
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 sho…
LOPES-3D, an antenna array for full signal detection of air-shower radio emission
W. D. Apel, J. C. Arteaga, L. Bähren +56
To better understand the radio signal emitted by extensive air-showers and to further develop the radio detection technique of high-energy cosmic rays, the LOPES experiment was rec…
Reconstruction of inclined air showers detected with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +485
We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than detected with the surface array of the Pierre Auger Observa…
Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +435
Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models with…
Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above eV
The Pierre Auger Collaboration, A. Aab, P. Abreu +404
Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arriv…
A search for point sources of EeV photons
Pierre Auger Collaboration, A. Aab, P. Abreu +483
Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point…
Study of the muon content of very high-energy EAS measured with the KASCADE-Grande observatory
J. C. Arteaga-Velazquez, W. D. Apel, K. Bekk +54
The KASCADE-Grande detector is an air-shower array devoted to the study of primary cosmic rays with very high-energies (E = 10^{16} - 10^{18} eV). The instrument is composed of dif…
The effect of the geomagnetic field on cosmic ray energy estimates and large scale anisotropy searches on data from the Pierre Auger Observatory
P. Abreu, M. Aglietta, E. J. Ahn +495
We present a comprehensive study of the influence of the geomagnetic field on the energy estimation of extensive air showers with a zenith angle smaller than , detected a…
Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of eV at the Pierre Auger Observatory and the Telescope Array
The Pierre Auger, Telescope Array Collaborations, : +605
Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coeffi…
Latest Analysis Results from the KASCADE-Grande Data
D. Kang, J. C. Arteaga-Velázquez, M. Bertaina +22
KASCADE-Grande, the extension of the multi-detector setup of KASCADE, was devoted to measure the properties of extensive air showers initiated by high-energy cosmic rays in the pri…
Search for First Harmonic Modulation in the Right Ascension Distribution of Cosmic Rays Detected at the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +466
We present the results of searches for dipolar-type anisotropies in different energy ranges above eV with the surface detector array of the Pierre Auger Observa…
Observation of Polarised Microwave Emission from Cosmic Ray Air Showers
R. Smida, F. Werner, R. Engel +55
We report on the first direct measurement of the basic features of microwave radio emission from extensive air showers. Using a trigger provided by the KASCADE-Grande air shower ar…
The Pierre Auger Observatory IV: Operation and Monitoring
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493
Technical reports on operations and monitoring of the Pierre Auger Observatory
The Pierre Auger Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
The Pierre Auger Collaboration, A. Aab, P. Abreu +449
Contributions of the Pierre Auger Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands
Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +400
We report a multi-resolution search for anisotropies in the arrival directions of cosmic rays detected at the Pierre Auger Observatory with local zenith angles up to and…
A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES
W. D. Apel, J. C. Arteaga-Velázquez, L. Bähren +73
The radio technique is a promising method for detection of cosmic-ray air showers of energies around PeV and higher with an array of radio antennas. Since the amplitude of t…
The Pierre Auger Observatory I: The Cosmic Ray Energy Spectrum and Related Measurements
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493
Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory
Mass sensitivity in the radio lateral distribution function
W. D. Apel, J. C. Arteaga, L. Bähren +56
Measuring the mass composition of ultra-high energy cosmic rays is one of the main tasks in the cosmic rays field. Here we are exploring the composition signature in the coherent e…
The spectrum of high-energy cosmic rays measured with KASCADE-Grande
Grande Collaboration, W. D. Apel, J. C. Arteaga-Velazquez +58
The energy spectrum of cosmic rays between 10**16 eV and 10**18 eV, derived from measurements of the shower size (total number of charged particles) and the total muon number of ex…
The Rapid Atmospheric Monitoring System of the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +508
The Pierre Auger Observatory is a facility built to detect air showers produced by cosmic rays above 10^17 eV. During clear nights with a low illuminated moon fraction, the UV fluo…
Cosmic ray energy spectra derived from KASCADE-Grande data using post-LHC hadronic interaction models
D. Kang, J. C. Arteaga-Velázquez, M. Bertaina +23
KASCADE-Grande was dedicated to measuring the energy spectrum and mass composition of cosmic rays in the energy range of 10 PeV to 1 EeV. We observed a knee-like structure in the h…
The KASCADE Cosmic-ray Data Centre KCDC: Granting Open Access to Astroparticle Physics Research Data
A. Haungs, D. Kang, S. Schoo +49
The `KASCADE Cosmic ray Data Centre' is a web portal (\url{https://kcdc.ikp.kit.edu}), where the data of the astroparticle physics experiment KASCADE-Grande are made available for…
Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum
The Pierre Auger Collaboration, A. Aab, P. Abreu +423
We report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers…
The <lnA> study in the primary energy range 10^{16} - 10^{17} eV with the Muon Tracking Detector in the KASCADE-Grande experiment
P. Åuczak, W. D. Apel, J. C. Arteaga-Velázquez +53
The KASCADE-Grande Muon Tracking Detector enables with high accuracy the measurement of directions of EAS muons with energy above 0.8 GeV and up to 700 m distance from the shower c…
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
Grande Collaboration, W. D. Apel, J. C. Arteaga-Velà zquez +55
The KASCADE-Grande air shower experiment [W. Apel, et al. (KASCADE-Grande collaboration), Nucl. Instrum. Methods A 620 (2010) 202] consists of, among others, a large scintillator a…
The Pierre Auger Observatory V: Enhancements
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493
Ongoing and planned enhancements of the Pierre Auger Observatory
Reconstructing energy and Xmax of cosmic ray air showers using the radio lateral distribution measured with LOPES
W. D. Apel, J. C. Arteaga, L. Bähren +53
The LOPES experiment, a digital radio interferometer located at KIT (Karlsruhe Institute of Technology), obtained remarkable results for the detection of radio emission from extens…
Thunderstorm Observations by Air-Shower Radio Antenna Arrays
W. D. Apel, J. C. Arteaga, L. Bähren +57
Relativistic, charged particles present in extensive air showers lead to a coherent emission of radio pulses which are measured to identify the shower initiating high-energy cosmic…
Revised absolute amplitude calibration of the LOPES experiment
K. Link, T. Huege, W. D. Apel +54
One of the main aims of the LOPES experiment was the evaluation of the absolute amplitude of the radio signal of air showers. This is of special interest since the radio technique…
Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +472
Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min ene…
Pierre Auger Observatory and Telescope Array: Joint Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)
Telescope Array Collaboration, R. U. Abbasi, M. Abe +573
Joint contributions of the Pierre Auger Collaboration and the Telescope Array Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The…
Investigation on the energy and mass composition of cosmic rays using LOPES radio data
N. Palmieri, W. D. Apel, J. C. Arteaga +52
The sensitivity to the mass composition as well as the reconstruction of the energy of the primary particle are explored here by leveraging the features of the radio lateral distri…
The Pierre Auger Observatory III: Other Astrophysical Observations
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493
Astrophysical observations of ultra-high-energy cosmic rays with the Pierre Auger Observatory
Cosmic Ray Measurements with LOPES: Status and Recent Results (ARENA 2012)
F. G. Schröder, W. D. Apel, J. C. Arteaga +52
LOPES is a digital antenna array at the Karlsruhe Institute of Technology, Germany, for cosmic-ray air-shower measurements. Triggered by the co-located KASCADE-Grande air-shower ar…
Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +410
On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2…
KCDC - The KASCADE Cosmic-ray Data Centre
A. Haungs, J. Bluemer, B. Fuchs +51
KCDC, the KASCADE Cosmic-ray Data Centre, is a web portal, where data of astroparticle physics experiments will be made available for the interested public. The KASCADE experiment,…
Longitudinal EAS-Development Studies in the Air-Shower Experiment KASCADE-Grande
P. Doll, W. D. Apel, J. C. Arteaga-Velázquez +58
A large area (128 m^2) Muon Tracking Detector (MTD), located within the KASCADE experiment, has been built with the aim to identify muons (E_mu > 0.8 GeV) and their directions in e…
Final results of the LOPES radio interferometer for cosmic-ray air showers
W. D. Apel, J. C. Arteaga-Velázquez, L. Bähren +54
LOPES, the LOFAR prototype station, was an antenna array for cosmic-ray air showers operating from 2003 - 2013 within the KASCADE-Grande experiment. Meanwhile, the analysis is fini…
The Pierre Auger Observatory Upgrade - Preliminary Design Report
The Pierre Auger Collaboration, A. Aab, P. Abreu +462
The Pierre Auger Observatory has begun a major Upgrade of its already impressive capabilities, with an emphasis on improved mass composition determination using the surface detecto…
Search for photons with energies above 10 eV using the hybrid detector of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +397
A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprec…
Search for ultrarelativistic magnetic monopoles with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +411
We present a search for ultra-relativistic magnetic monopoles with the Pierre Auger Observatory. Such particles, possibly a relic of phase transitions in the early universe, would…
Investigation of the radio wavefront of air showers with LOPES measurements and CoREAS simulations (ARENA 2014)
F. G. Schröder, W. D. Apel, J. C. Arteaga-Velazquez +54
We investigated the radio wavefront of cosmic-ray air showers with LOPES measurements and CoREAS simulations: the wavefront is of approximately hyperbolic shape and its steepness i…