Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory

With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60 and 84. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of...

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Autor principal: Aab, A.
Formato: JOUR
Materias:
cosmic ray experiments
cosmic rays detectors
ultra high energy cosmic rays
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14757516_v2018_n10_p_Aab
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14757516_v2018_n10_p_Aab2023-10-03T16:18:55Z Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory Aab, A. cosmic ray experiments cosmic rays detectors ultra high energy cosmic rays With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60 and 84. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of several km 2 with radio signals detectable in the 30 to 80 MHz band. A comparison of the measured radio-signal amplitudes with Monte Carlo simulations of a subset of 50 events for which we reconstruct the energy using the Auger surface detector shows agreement within the uncertainties of the current analysis. As expected for forward-beamed radio emission undergoing no significant absorption or scattering in the atmosphere, the area illuminated by radio signals grows with the zenith angle of the air shower. Inclined air showers with EeV energies are thus measurable with sparse radio-antenna arrays with grid sizes of a km or more. This is particularly attractive as radio detection provides direct access to the energy in the electromagnetic cascade of an air shower, which in case of inclined air showers is not accessible by arrays of particle detectors on the ground. © 2018 IOP Publishing Ltd and Sissa Medialab. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14757516_v2018_n10_p_Aab
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic cosmic ray experiments
cosmic rays detectors
ultra high energy cosmic rays
spellingShingle cosmic ray experiments
cosmic rays detectors
ultra high energy cosmic rays
Aab, A.
Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
topic_facet cosmic ray experiments
cosmic rays detectors
ultra high energy cosmic rays
description With the Auger Engineering Radio Array (AERA) of the Pierre Auger Observatory, we have observed the radio emission from 561 extensive air showers with zenith angles between 60 and 84. In contrast to air showers with more vertical incidence, these inclined air showers illuminate large ground areas of several km 2 with radio signals detectable in the 30 to 80 MHz band. A comparison of the measured radio-signal amplitudes with Monte Carlo simulations of a subset of 50 events for which we reconstruct the energy using the Auger surface detector shows agreement within the uncertainties of the current analysis. As expected for forward-beamed radio emission undergoing no significant absorption or scattering in the atmosphere, the area illuminated by radio signals grows with the zenith angle of the air shower. Inclined air showers with EeV energies are thus measurable with sparse radio-antenna arrays with grid sizes of a km or more. This is particularly attractive as radio detection provides direct access to the energy in the electromagnetic cascade of an air shower, which in case of inclined air showers is not accessible by arrays of particle detectors on the ground. © 2018 IOP Publishing Ltd and Sissa Medialab.
format JOUR
author Aab, A.
author_facet Aab, A.
author_sort Aab, A.
title Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
title_short Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
title_full Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
title_fullStr Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
title_full_unstemmed Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory
title_sort observation of inclined eev air showers with the radio detector of the pierre auger observatory
url http://hdl.handle.net/20.500.12110/paper_14757516_v2018_n10_p_Aab
work_keys_str_mv AT aaba observationofinclinedeevairshowerswiththeradiodetectorofthepierreaugerobservatory
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