scholarly journals A Surface Radio Array for the Enhancement of IceTop and its Science Prospects

2019 ◽  
Vol 216 ◽  
pp. 04004
Author(s):  
Aswathi Balagopal V. ◽  
Andreas Haungs ◽  
Thomas Huber ◽  
Tim Huege ◽  
Matthias Kleifges ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Galactic Center ◽  
Signal To Noise Ratio ◽  
Cosmic Ray ◽  
High Energy ◽  
South Pole ◽  
Frequency Range ◽  
Air Showers ◽  
Signal To Noise ◽  
Radio Detection

Radio detection of air showers in the current era has progressed immensely to effectively extract the properties of these air showers. Primary cosmic rays with energies of hundreds of PeV have been successfully measured with the method of radio detection. There are also attempts to observe high-energy neutrinos with this technique. Current radio experiments measuring cosmic-ray air showers mostly operate in the frequency range of 30-80 MHz. An optimization of the frequency band of operation can be done for maximizing the signal-to-noise ratio that can be achieved by an array of radio antennas at the South Pole, operated along with IceTop. Such an array can improve the reconstruction of air showers performed with IceTop. The prospect of using such an optimized radio array for measuring gamma rays of PeV energies from the Galactic Center is discussed.

scholarly journals CODALEMA: A COSMIC RAY AIR SHOWER RADIO DETECTION EXPERIMENT

2006 ◽  
Vol 21 (supp01) ◽  
pp. 192-196 ◽  
Author(s):  
D. ARDOUIN ◽  
A. BELLETOILE ◽  
D. CHARRIER ◽  
R. DALLIER ◽  
L. DENIS ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Air Showers ◽  
Detection Experiment ◽  
Transient Signals ◽  
High Energy Cosmic Rays ◽  
Air Shower ◽  
Radio Detection

The CODALEMA experimental device currently detects and characterizes the radio contribution of cosmic ray air showers : arrival directions and electric field topologies of radio transient signals associated to cosmic rays are extracted from the antenna signals. The measured rate, about 1 event per day, corresponds to an energy threshold around 5.1016eV. These results allow to determine the perspectives offered by the present experimental design for radiodetection of Ultra High Energy Cosmic Rays at a larger scale.

scholarly journals Radio detection in the multi-messenger context

2019 ◽  
Vol 207 ◽  
pp. 03005
Author(s):  
D. Kostunin
Keyword(s):  
Cosmic Rays ◽  
Gamma Rays ◽  
Cosmic Radiation ◽  
High Energy ◽  
Ultra High Energy ◽  
Future Prospects ◽  
Air Showers ◽  
Digital Radio ◽  
High Energy Cosmic Rays ◽  
Radio Detection

The present work discusses the development of the radio technique for detection of ultra-high energy air-showers induced by cosmic radiation, and the prospects of its application in the future multi-messenger activities, particularly for detection of ultra-high energy cosmic rays, gamma rays and neutrinos. It gives an overview of the results achieved by the modern digital radio arrays, as well as discuss present challenges and future prospects.

scholarly journals Radio interferometry applied to the observation of cosmic-ray induced extensive air showers

2021 ◽  
Vol 81 (12) ◽  
Author(s):  
Harm Schoorlemmer ◽  
Washington R. Carvalho
Keyword(s):  
Cosmic Ray ◽  
High Energy ◽  
High Accuracy ◽  
Extensive Air Showers ◽  
Ultra High Energy ◽  
Air Showers ◽  
Interferometric Technique ◽  
Radio Detection ◽  
Cosmic Particle ◽  
Shower Maximum

AbstractWe developed a radio interferometric technique for the observation of extensive air showers initiated by cosmic particles. In this proof-of-principle study we show that properties of extensive air showers can be derived with high accuracy in a straightforward manner. When time synchronisation below $$\sim $$ ∼ 1 ns between different receivers can be achieved, direction reconstruction resolution of $$< 0.2^\circ $$ < 0 . 2 ∘ and resolution on the depth of shower maximum of $$<10$$ < 10  g/cm$$^2$$ 2 are obtained over the full parameter range studied, with even higher accuracy for inclined incoming directions. In addition, by applying the developed method to dense arrays of radio antennas, the energy threshold for the radio detection of extensive air showers can be significantly lowered. The proposed method can be incorporated in operational and future cosmic particle observatories and with its high accuracy it has the potential to play a crucial role in unravelling the composition of the ultra-high-energy cosmic-particle flux.

scholarly journals Latest Cosmic Ray Results from IceTop and IceCube

2019 ◽  
Vol 210 ◽  
pp. 03005
Author(s):  
Karen Andeen ◽  
Matthias Plum
Keyword(s):  
Energy Spectrum ◽  
Cosmic Rays ◽  
Gamma Ray ◽  
Cosmic Ray ◽  
High Energy ◽  
Low Energy ◽  
South Pole ◽  
Air Showers ◽  
Future Plans

The IceCube Neutrino Observatory at the geographic South Pole, with its surface array IceTop, detects three different components of extensive air showers: the total signal at the surface, low energy muons on the periphery of the showers, and high energy muons in the deep In Ice array of IceCube. These measurements enable determination of the energy spectrum and composition of cosmic rays from PeV to EeV energies, the anisotropy in the distribution of cosmic ray arrival directions, the muon density of cosmic ray air showers, and the PeV gamma-ray flux. Furthermore, IceTop can be used as a veto for the neutrino measurements. The latest results from these IceTop analyses will be presented along with future plans.

scholarly journals THE AUGER ENGINEERING RADIO ARRAY

2013 ◽  
Vol 53 (A) ◽  
pp. 825-828 ◽  
Author(s):  
Klaus Weidenhaupt
Keyword(s):  
Cosmic Rays ◽  
Radio Emission ◽  
Cosmic Ray ◽  
High Energy ◽  
Pierre Auger Observatory ◽  
Polarization Analysis ◽  
Air Showers ◽  
High Energy Cosmic Rays ◽  
Radio Detection ◽  
Unique Site

The Auger Engineering Radio Array currently measures MHz radio emission from extensive air showers induced by high energy cosmic rays with 24 self-triggered radio detector stations. Its unique site, embedded into the baseline detectors and extensions of the Pierre Auger Observatory, allows to study air showers in great detail and to calibrate the radio emission. In its final stage AERA will expand to an area of approximately 20km<sup>2</sup> to explore the feasibility of the radio-detection technique for future cosmic-ray detectors. The concept and hardware design of AERA as well as strategies to enable self-triggered radio detection are presented. Radio emission mechanisms are discussed based on polarization analysis of the first AERA data.

scholarly journals Latest results on the analysis of the radio frequency spectrum emitted by high energy air showers with LOFAR

2019 ◽  
Vol 216 ◽  
pp. 02013
Author(s):  
Laura Rossetto ◽  
Antonio Bonardi ◽  
Stijn Buitink ◽  
Arthur Corstanje ◽  
Heino Falcke ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
Strong Dependence ◽  
Cosmic Ray ◽  
Real Data ◽  
High Energy ◽  
Shower Axis ◽  
Frequency Range ◽  
Air Showers ◽  
Radio Frequency Spectrum

The LOw Frequency ARay (LOFAR) is a multi-purpose radio antenna array aimed to detect radio signals in the frequency range 10 - 240 MHz, covering a largesurface in Northern Europe with a higher density in the Netherlands. Analytical calculations and simulation studies performed in the 2000s indicate a dependence of the radio frequency spectrum on cosmic-ray characteristics. The high number density of radio antennas at the LOFAR core allows to characterise the observed cascade in a detailed way. The radio signal emitted by air showers in the atmosphere has been studied accurately in the 30 - 80 MHz frequency range. The analysis has been conducted on simulated eventsand on real data detected by LOFAR since 2011. The final aim of this study is to find an independent method to infer information of primary cosmic rays for improving the reconstruction of primary particle parameters. Results show a strong dependence of the frequency spectrum on the distance to the shower axis for both real data and simulations. Furthermore, results show that this method is very sensitive to the precision in reconstructing the position of the shower axis at ground, and to different antenna calibration procedures. A correlation between the frequency spectrum and geometrical distance to the shower maximum development Xmax has also been investigated.

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