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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…
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…
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…
Comparison of LOPES data and CoREAS simulations using a full detector simulation (ICRC2013)
K. Link, W. D. Apel, J. C. Arteaga-VelÁzquez +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…
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…
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…
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…
Towards the Chalonge Meudon Workshop 2013. Highlights and Conclusions of the Chalonge Meudon workshop 2012: warm dark matter galaxy formation in agreement with observations
P. L. Biermann, H. J. de Vega, N. G. Sanchez
Warm Dark Matter(WDM), considerably clarifies and simplifies galaxies and galaxy formation in agreement with observations. WDM essentially works, naturally reproducing the astronom…
An evaluation of the exposure in nadir observation of the JEM-EUSO mission
J. H. Adams, S. Ahmad, J. -N. Albert +258
We evaluate the exposure during nadir observations with JEM-EUSO, the Extreme Universe Space Observatory, on-board the Japanese Experiment Module of the International Space Station…
Mass entrainment and turbulence-driven acceleration of ultra-high energy cosmic rays in Centaurus A
Sarka Wykes, Judith H. Croston, Martin J. Hardcastle +8
Observations of the FR I radio galaxy Centaurus A in radio, X-ray and gamma-ray bands provide evidence for lepton acceleration up to several TeV and clues about hadron acceleration…
Dark energy as stimulated emission of gravitons from a background brane
Peter L. Biermann, Benjamin C. Harms
The idea that dark energy is gravitational waves may explain its strength and its time-evolution provided that the additional energy comes from a background. A possible concept is…
Ultrahigh Energy Neutrinos at the Pierre Auger Observatory
Pierre Auger Collaboration
The observation of ultrahigh energy (UHE) neutrinos has become a priority in experimental astroparticle physics. UHE neutrinos can be detected with a variety of techniques. In part…
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…
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…
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…
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…
Techniques for Measuring Aerosol Attenuation using the Central Laser Facility at the Pierre Auger Observatory
Pierre Auger Collaboration
The Pierre Auger Observatory in Malargüe, Argentina, is designed to study the properties of ultra-high energy cosmic rays with energies above 1018 eV. It is a hybrid facility that…
A Comprehensive Model of Dark Energy, Inflation AND Black Holes
Peter L. Biermann, Benjamin C. Harms
We derive two new equations of quantum gravity and combine them with reinterpretations of previously proposed concepts of dark energy, black holes, inflation, the arrow of time and…
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…
The Galactic Wind Haze and its -spectrum
Nayantara Gupta, Biman B. Nath, Peter L. Biermann +3
We study the possibility that the gamma ray emission in the Fermi bubbles observed is produced by cosmic ray electrons with a spectrum similar to Galactic cosmic rays. We argue tha…