Mass composition of 1017- to 1018-eV primary cosmic rays according to data on the lateral distribution of radio emission from extensive air showers

2012 ◽  
Vol 75 (12) ◽  
pp. 1513-1522 ◽  
Author(s):  
N. N. Kalmykov ◽  
A. A. Konstantinov ◽  
O. V. Vedeneev
Keyword(s):  
Cosmic Rays ◽  
Radio Emission ◽  
Lateral Distribution ◽  
Extensive Air Showers ◽  
Mass Composition ◽  
Air Showers ◽  
Primary Cosmic Rays

scholarly journals A new parametrization for the radio emission of air showers applied to LOFAR data

2019 ◽  
Vol 216 ◽  
pp. 03011
Author(s):  
I. Plaisier ◽  
A. Bonardi ◽  
S. Buitink ◽  
A. Corstanje ◽  
H. Falcke ◽  
...  
Keyword(s):  
Cosmic Rays ◽  
Radio Emission ◽  
Cosmic Ray ◽  
Mass Composition ◽  
Air Showers ◽  
Precise Description ◽  
Geomagnetic Effect ◽  
Separate Treatment ◽  
Charge Excess ◽  
Primary Cosmic Rays

The energy and mass composition of cosmic rays influence how the energy density of the radio emission of air showers is distributed on the ground. A precise description of the radio profiles can, therefore, be used to reconstruct the properties of the primary cosmic rays. Here, such a description is presented, using a separate treatment of the two radio-emission mechanisms, the geomagnetic effect and the charge excess effect. The model is parametrized as a function that depends only on the shower parameters, allowing for a precise reconstruction of the properties of the primary cosmic rays. This model is applied to cosmic-ray events measured with LOFAR and it is capable of reconstructing the properties of air showers correctly.

scholarly journals On the Detection of Heavy Primaries above 1014 EV

1981 ◽  
Vol 94 ◽  
pp. 71-72
Author(s):  
T. K. Gaisser ◽  
Todor Stanev ◽  
Phyllis Freier ◽  
C. Jake Waddington
Keyword(s):  
Chemical Composition ◽  
Cosmic Rays ◽  
Total Energy ◽  
Extensive Air Showers ◽  
Heavy Nuclei ◽  
Air Showers ◽  
Hadronic Interactions ◽  
Primary Particles ◽  
Source Of Information ◽  
Primary Cosmic Rays

Knowledge of the chemical composition is fundamental to understanding the origin, acceleration and propagation of cosmic rays. At energies much above 1014 eV, however, the detection of single primary cosmic rays is at present impossible because of their low flux, and the only source of information is from the cascades initiated by energetic primary particles in the atmosphere–the extensive air showers (EAS). A similar situation exists for the study of hadronic interactions above 1015 eV. A recent EAS experiment (Goodman et al., 1979) suggests the possibility that the spectrum becomes increasingly rich in heavy nuclei as the total energy per nucleus approaches 1015 eV. Above that energy the overall spectrum steepens and the question of composition is almost completely open.

Radioemission from extensive air showers and the composition of primary cosmic rays

1977 ◽  
Vol 40 (2) ◽  
pp. 289-302 ◽  
Author(s):  
R. Baggio ◽  
N. Mandolesi ◽  
G. Morigi ◽  
G. G. C. Palumbo
Keyword(s):  
Cosmic Rays ◽  
Extensive Air Showers ◽  
Air Showers ◽  
Primary Cosmic Rays
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