Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2010-10-25
Nucl. Inst. and Meth. 662 (2012) S80-S84
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
Proceedings ARENA2010 conference, Nantes, France to be published in Nucl. Instr. Meth. A
Scientific paper
10.1016/j.nima.2010.11.125
The generic properties of the emission of coherent radiation from a moving charge distribution are discussed. The general structure of the charge and current distributions in an extensive air shower are derived. These are subsequently used to develop a very intuitive picture for the properties of the emitted radio pulse. Using this picture can be seen that the structure of the pulse is a direct reflection of the shower profile. At higher frequencies the emission is suppressed because the wavelength is shorter than the important length scale in the shower. It is shown that radio emission can be used to distinguish proton and iron induced air showers.
de Vries Krijn D.
Scholten Olaf
Werner Klaus
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