Overview of radio detection of cosmic ray air showers in the MHz range, and prospects for a large scale experiment

Abstract

Since its revival in the last decade, radio detection of cosmic ray air showers has made tremendous progress. Today, several experiments are routinely detecting radio sig- nals associated with air showers. Large cosmic ray observa- tories such as the Pierre Auger Observatory are also pursuing radio detection activities. As an introduction, in this article we will summarize the main results from the first generation of radio detec- tion experiments: LOPES and CODALEMA. Then, we will show which questions concerning the radio emission mecha- nisms can be answered from larger-scale experiments like the Auger Engineering Radio Array (AERA), which is a 20 km 2 antenna array under construction close to other enhancement devices at the Pierre Auger Observatory.