scholarly journals MONTE CARLO SIMULATIONS OF RADIO EMISSION FROM COSMIC RAY AIR SHOWERS

2006 ◽  
Vol 21 (supp01) ◽  
pp. 60-64
Author(s):  
T. HUEGE ◽  
H. FALCKE
Keyword(s):  
Monte Carlo ◽  
Radio Emission ◽  
Monte Carlo Simulations ◽  
Primary Particle ◽  
Radio Signal ◽  
Cosmic Ray ◽  
Particle Energy ◽  
Air Showers ◽  
Air Shower ◽  
Shower Maximum

As a basis for the interpretation of data gathered by LOPES and other experiments, we have carried out Monte Carlo simulations of geosynchrotron radio emission from cosmic ray air showers. The simulations, having been verified carefully with analytical calculations, reveal a wealth of information on the characteristics of the radio signal and their dependence on specific air shower parameters. In this article, we review the spatial characteristics of the radio emission, its predicted frequency spectrum and its dependence on important air shower parameters such as the shower zenith angle, the primary particle energy and the depth of the shower maximum, which can in turn be related to the nature of the primary particle.

SIMULATIONS OF RADIO EMISSION FROM COSMIC RAY AIR SHOWERS

2005 ◽  
Vol 20 (29) ◽  
pp. 6831-6833
Author(s):  
TIM HUEGE ◽  
HEINO FALCKE
Keyword(s):  
Radio Emission ◽  
Primary Particle ◽  
Cosmic Ray ◽  
Cost Effective ◽  
Azimuth Angle ◽  
Particle Energy ◽  
Particle Detector ◽  
Air Showers ◽  
Electron Positron ◽  
Air Fluorescence

Radio emission from cosmic ray air showers has the potential to become an additional, cost-effective observing technique for cosmic ray research, being largely complementary to the well-established particle detector and air fluorescence techniques. We present Monte Carlo simulations of radio emission from extensive air showers in the scheme of coherent geosynchrotron radiation from electron-positron pairs gyrating in the earth's magnetic field. Preliminary results of our simulations are the predicted frequency, primary particle energy, shower zenith angle, shower azimuth angle and polarization dependence of the radio emission. These properties can be directly related to data measured by LOPES and other experiments.

SIMULATION OF RADIO SIGNALS FROM 1-10 TeV AIR SHOWERS USING EGSNRC

2006 ◽  
Vol 21 (supp01) ◽  
pp. 65-69 ◽  
Author(s):  
R. Engel ◽  
N. N. Kalmykov ◽  
A. A. Konstantinov
Keyword(s):  
Monte Carlo ◽  
Radio Emission ◽  
Monte Carlo Simulations ◽  
Frequency Spectrum ◽  
Radial Dependence ◽  
Frequency Range ◽  
Air Showers ◽  
Shower Development ◽  
Radio Signals ◽  
The Individual

Cherenkov and geosynchrotron radiation are considered as two fundamental mechanisms of the radio emission generated by extensive air showers (EAS). The code EGSnrc is used for Monte-Carlo simulations of the individual shower development. Calculations of the radial dependence and frequency spectrum of the emitted radiation are performed for the LOPES experiment frequency range.

scholarly journals First analysis of inclined air showers detected by Tunka-Rex

2019 ◽  
Vol 216 ◽  
pp. 02012
Author(s):  
T. Marshalkina ◽  
P.A. Bezyazeekov ◽  
N.M. Budnev ◽  
D. Chernykh ◽  
O. Fedorov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Radio Emission ◽  
Zenith Angle ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Air Showers ◽  
Standard Analysis ◽  
Air Shower ◽  
The Magnetic Field

The Tunka Radio Extension (Tunka-Rex) is a digital antenna array for the detection of radio emission from cosmic-ray air showers in the frequency band of 30 to 80 MHz and for primary energies above 100 PeV. The standard analysis of Tunka-Rex includes events with zenith angle of up to 50?. This cut is determined by the efficiency of the external trigger. However, due to the air-shower footprint increasing with zenith angle and due to the more efficient generation of radio emission (the magnetic field in the Tunka valley is almost vertical), there are a number of ultra-high-energy inclined events detected by Tunka-Rex. In this work we present a first analysis of a subset of inclined events detected by Tunka-Rex. We estimate the energies of the selected events and test the efficiency of Tunka-Rex antennas for detection of inclined air showers.

scholarly journals Muon Measurements with IceTop

2019 ◽  
Vol 208 ◽  
pp. 03003 ◽  
Author(s):  
Javier G. Gonzalez
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Cosmic Ray ◽  
Shower Axis ◽  
South Pole ◽  
Air Showers ◽  
Hadronic Interaction ◽  
Interaction Models ◽  
Lateral Distance ◽  
Cosmic Ray Flux

We present the measurement of the density of GeV muons in near-vertical air showers by the IceTop array at the South Pole. The muon density is measured at 600 m and 800 m lateral distance from the shower axis in air showers between 1 PeV and 100 PeV. This result can be used to constrain hadronic interaction models by comparing it with the outcome of Monte Carlo simulations. We show that some models do not produce muon densities in agreement with this result unless an unphysical composition of the primary cosmic ray flux is assumed.

scholarly journals Estimating the mass of cosmic rays by combining radio and muon measurements

2019 ◽  
Vol 216 ◽  
pp. 02002 ◽  
Author(s):  
Ewa M. Holt
Keyword(s):  
Radio Emission ◽  
Cosmic Ray ◽  
Mass Separation ◽  
New Method ◽  
Alternative Methods ◽  
Air Showers ◽  
Particle Detectors ◽  
Particle Measurements ◽  
Air Shower ◽  
Comparable Performance

The Auger Engineering Radio Array (AERA) is a radio detector at the Pierre Auger Observatory and it is dedicated to measure the radio emission of cosmic-ray air showers. AERA is co-located with the underground muon detectors of the Auger Muons and Infill for the Ground Array (AMIGA). This provides a perfect setup to experimentally test the benefits of combining muons and radio emission for estimating the primary mass. We have investigated this combination using air-shower simulations. We compared the performance for mass separation of this new method to alternative methods in which the electrons and muons are measured with particle detectors at the surface. Forshowers with zenith angles below 50° the new method is of comparable performance, and for showers more inclinedthan 50° it is clearly superior. Therefore, measuring the radio signal in addition to the muons significantly improves the mass sensitivity compared to techniques using solely particle measurements.

scholarly journals Energy cutoff effect in CORSIKA on the detected particles of ππ0 decay channel

2018 ◽  
Vol 96 (7) ◽  
pp. 673-676
Author(s):  
Şeyma Atik Yılmaz ◽  
Ali Yılmaz ◽  
Haluk Denizli ◽  
Kaan Yüksel Oyulmaz
Keyword(s):  
Primary Particle ◽  
Decay Channel ◽  
Cosmic Ray ◽  
Particle Energy ◽  
Low Energy ◽  
Air Showers ◽  
Inclined Plane ◽  
Energy Cutoff ◽  
Shower Development ◽  
Particle Kinetic Energy

CORSIKA (COsmic Ray SImulations for Kascade) has various features in the creation of the extensive air showers with several characteristics where the users can configure the input card to achieve the desired result. ECUT is a parameter defined as the low energy cutoff of the particle kinetic energy for hadrons, muons, electrons, and photons. We investigate the effect of the different ECUT values on the detected particles in 107 – 5 × 108 GeV primary particle energy range where π–π0 decay channel chosen with 5 km shower development length. The selected ECUT values in this study are 0.05 and 0.1 GeV for both hadrons and muons and 0.05 GeV for electrons and photons. The effect of the reducing by half on the energy cutoff value is studied for the detector array located on an inclined plane, which is planned for upward τ detection.

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