1969
DOI: 10.1038/222635a0
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Radio Pulse Production in Extensive Air Showers

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1971
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Cited by 22 publications
(11 citation statements)
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“…A dependence of the polarisation of the emitted radiation on the earth's magnetic field direction was also confirmed by a number of experiments (e.g., Allan et al 1969), supporting the case for the geomagnetic emission mechanism. The actual strength of the emission, however, is still largely unknown at present state.…”
Section: Comparison With Experimental Datamentioning
confidence: 50%
See 1 more Smart Citation
“…A dependence of the polarisation of the emitted radiation on the earth's magnetic field direction was also confirmed by a number of experiments (e.g., Allan et al 1969), supporting the case for the geomagnetic emission mechanism. The actual strength of the emission, however, is still largely unknown at present state.…”
Section: Comparison With Experimental Datamentioning
confidence: 50%
“…While the former is dominant in case of dense media (Buniy & Ralston 2002;Zas et al 1992;Alvarez-Muñiz et al 2000), polarisation measurements in a number of experiments subsequently supported the dominance of the geomagnetic emission mechanism for radio emission from EAS in air (e.g., Allan et al 1969). It also seems unavoidable in principle for highly relativistic charged particles moving in the earth's magnetic field.…”
Section: The Geosynchrotron Approachmentioning
confidence: 94%
“…First, the geomagnetic mechanism generates beamed synchrotron emission through relativistic electronpositron pairs in the Earth's magnetic field, which is believed to be the dominant mechanism (Allan et al 1967;Allan et al 1969). This ansatz led to the description of coherent geosynchrotron emission at meter wavelengths (Falcke & Gorham 2003).…”
Section: Introductionmentioning
confidence: 99%
“…Those early studies found strongly pulsed radio emission from air showers detected with radio antennae triggered by particle detectors. A dependence of the radio emission's polarization on the geomagnetic field favored a geomagnetic emission mechanism (see, e.g., Allan et al 1967Allan et al , 1969Sun 1975). The first quantitative radio frequency spectra were obtained from a few simultaneous narrowband observations below 100 MHz by, e.g., Spencer (1969), Allan et al (1970), andPrah (1971).…”
Section: Introductionmentioning
confidence: 99%
“…After first being discovered in the late 1960s [1], radio emission of air showers has again received increasing interest in the past years. This is mainly due to the achievements in information technology, which open the possibility to use phased arrays of radio antennas in combination with digital beamforming.…”
Section: Motivationmentioning
confidence: 99%