IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Measurements of Inclined Air Showers with the Auger Engineering Radio Array at the Pierre Auger Observatory
Autor/es:
THE PIERRE AUGER COLLABORATION.; M. GOTTOWIK; S. J. SCIUTTO
Lugar:
Madison
Reunión:
Conferencia; 36th International Cosmic Ray Conference; 2019
Resumen:
The Auger Engineering Radio Array (AERA) comprises 153 autonomous radio antenna stationsdistributed over an area of 17 km2. It is operated in coincidence with the surface detector array andfluorescence telescopes of the Pierre Auger Observatory so that hybrid observations of extensiveair showers initiated by cosmic rays in the EeV energy range can be performed. A first analysisof the radio emission of more than 500 inclined air showers with zenith angles between 60 and84 was published last year. Here, we provide an update of the analysis including recent data,approximately quadrupling the event statistics. For inclined showers, the radio signal is foundto be distributed over an area of several km2, allowing air showers to be measured with radioantennas on a grid as sparse as the 1500m spacing of the 1600 water-Cherenkov Detector (WCD)stations. For a subset of these inclined events, for which the primary energy can be reconstructedwith the data from the WCD array, we verify that the measured radio amplitudes agree withMonte Carlo simulations made using CoREAS. Special challenges of a radio event reconstructiondedicated to inclined air showers will also be discussed.