Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory

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The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmi...

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Autores principales:	Dova, María Teresa, Hansen, Patricia María, Jarne, Cecilia Gisele, Mariazzi, Analisa Gabriela, Sciutto, Sergio Juan, Wahlberg, Hernán Pablo, Pierre Auger Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2016
Materias:	Física Cosmic ray showers Cosmic rays Radio detection
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/86246
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-86246
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física Cosmic ray showers Cosmic rays Radio detection
spellingShingle	Física Cosmic ray showers Cosmic rays Radio detection Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo Pierre Auger Collaboration Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
topic_facet	Física Cosmic ray showers Cosmic rays Radio detection
description	The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the surface detector stations of the Observatory, which provide well-calibrated information on the cosmic-ray energies and arrival directions. The response of the radio stations in the 30-80 MHz regime has been thoroughly calibrated to enable the reconstruction of the incoming electric field. For the latter, the energy deposit per area is determined from the radio pulses at each observer position and is interpolated using a two-dimensional function that takes into account signal asymmetries due to interference between the geomagnetic and charge-excess emission components. The spatial integral over the signal distribution gives a direct measurement of the energy transferred from the primary cosmic ray into radio emission in the AERA frequency range. We measure 15.8 MeV of radiation energy for a 1 EeV air shower arriving perpendicularly to the geomagnetic field. This radiation energy - corrected for geometrical effects - is used as a cosmic-ray energy estimator. Performing an absolute energy calibration against the surface-detector information, we observe that this radio-energy estimator scales quadratically with the cosmic-ray energy as expected for coherent emission. We find an energy resolution of the radio reconstruction of 22% for the data set and 17% for a high-quality subset containing only events with at least five radio stations with signal.
format	Articulo Articulo
author	Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo Pierre Auger Collaboration
author_facet	Dova, María Teresa Hansen, Patricia María Jarne, Cecilia Gisele Mariazzi, Analisa Gabriela Sciutto, Sergio Juan Wahlberg, Hernán Pablo Pierre Auger Collaboration
author_sort	Dova, María Teresa
title	Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title_short	Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title_full	Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title_fullStr	Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title_full_unstemmed	Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title_sort	energy estimation of cosmic rays with the engineering radio array of the pierre auger observatory
publishDate	2016
url	http://sedici.unlp.edu.ar/handle/10915/86246
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bdutipo_str	Repositorios
_version_	1764820489473097733

Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory

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