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

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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Authors: Arqueros Martínez, Fernando, García Pinto, Diego, Minaya Flores, Ignacio Andrés, Rosado Vélez, Jaime, Vázquez Peñas, José Ramón
Format: article
Publication Date:2016
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/24605
Online Access:https://hdl.handle.net/20.500.14352/24605
Access Level:Open access
Keyword:539.1
Extensive air showers
Monte-carlo simulations
Emission
Codalema
Coreas
Lofar.
Física nuclear
2207 Física Atómica y Nuclear
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oai_identifier_str oai:docta.ucm.es:20.500.14352/24605
network_acronym_str ES
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repository_id_str
spelling Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger ObservatoryArqueros Martínez, FernandoGarcía Pinto, DiegoMinaya Flores, Ignacio AndrésRosado Vélez, JaimeVázquez Peñas, José Ramón539.1Extensive air showersMonte-carlo simulationsEmissionCodalemaCoreasLofar.Física nuclear2207 Física Atómica y NuclearThe 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.Amer Physical SocUniversidad Complutense de Madrid20162016-06-1420162016-06-14journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/24605reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/246052026-06-02T12:44:21Z
dc.title.none.fl_str_mv Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
title Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
spellingShingle Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
Arqueros Martínez, Fernando
539.1
Extensive air showers
Monte-carlo simulations
Emission
Codalema
Coreas
Lofar.
Física nuclear
2207 Física Atómica y Nuclear
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
dc.creator.none.fl_str_mv Arqueros Martínez, Fernando
García Pinto, Diego
Minaya Flores, Ignacio Andrés
Rosado Vélez, Jaime
Vázquez Peñas, José Ramón
author Arqueros Martínez, Fernando
author_facet Arqueros Martínez, Fernando
García Pinto, Diego
Minaya Flores, Ignacio Andrés
Rosado Vélez, Jaime
Vázquez Peñas, José Ramón
author_role author
author2 García Pinto, Diego
Minaya Flores, Ignacio Andrés
Rosado Vélez, Jaime
Vázquez Peñas, José Ramón
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Extensive air showers
Monte-carlo simulations
Emission
Codalema
Coreas
Lofar.
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Extensive air showers
Monte-carlo simulations
Emission
Codalema
Coreas
Lofar.
Física nuclear
2207 Física Atómica y Nuclear
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.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-06-14
2016
2016-06-14
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/24605
url https://hdl.handle.net/20.500.14352/24605
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869414543368650752
score 15.223283

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