Radio detection of air showers at the Pierre Auger Observatory

24th European Cosmic Ray Symposium

Hasankiadeh, Qader Dorosti^1

Institut für Kernphysik, Karlsruhe Institute of Technology (KIT), Germany^1

关键词: Extensive air showers;    Extragalactic origin;    Geomagnetic fields;    High-energy cosmic rays;    Lateral distributions;    Pierre Auger observatory;    Secondary particles;    Ultra high-energy cosmic rays;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/632/1/012005/pdf
DOI  :  10.1088/1742-6596/632/1/012005

来源: IOP

【 摘 要 】

High-energy cosmic rays impinging onto the atmosphere of the Earth induce cascades of secondary particles: extensive air showers. Many of the particles in a shower are electrons and positrons. The electrons and positrons interact with the geomagnetic field and emit radiation. We detect such radiation at frequencies of tens to hundreds of MHz with the Auger Engineering Radio Array (AERA) at the Pierre Auger Observatory in Argentina. The objective is to investigate the properties of cosmic rays at the expected transition from Galactic to an extragalactic origin at energies around 1017to 1018eV. We discuss the recent progress in radio detection of ultra-high-energy cosmic rays with AERA. To this end, we elaborate on our measurements of shower properties, such as the lateral distribution of the radio emission at ground level. In addition, we present methods to reconstruct the properties of the primary particle from the radio data.