Title: Radio detection of Extensive Air Showers (ECRS 2016),
Abstract: Detection of the mostly geomagnetically generated radio emission of
cosmic-ray air showers provides an alternative to air-Cherenkov and
air-fluorescence detection, since it is not limited to clear nights. Like these
established methods, the radio signal is sensitive to the calorimetric energy
and the position of the maximum of the electromagnetic shower component. This
makes antenna arrays an ideal extension for particle-detector arrays above a
threshold energy of about 100 PeV of the primary cosmic-ray particles. In the
last few years the digital radio technique for cosmic-ray air showers again
made significant progress, and there now is a consistent picture of the
emission mechanisms confirmed by several measurements. Recent results by the
antenna arrays AERA and Tunka-Rex confirm that the absolute accuracy for the
shower energy is as good as the other detection techniques. Moreover, the
sensitivity to the shower maximum of the radio signal has been confirmed in
direct comparison to air-Cherenkov measurements by Tunka-Rex. The dense antenna
array LOFAR can already compete with the established techniques in accuracy for
cosmic-ray mass-composition. In the future, a new generation of radio
experiments might drive the field: either by providing extremely large exposure
for inclined cosmic-ray or neutrino showers or, like the SKA core in Australia
with its several 10,000 antennas, by providing extremely detailed measurements.