Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory

Atmospheric parameters, such as pressure (P), temperature (T) and density (ρ ∝ P / T), affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auge...

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Autor principal: Multitudinario:473
Formato: JOUR
Materias:
Atmosphere
Extensive air showers
UHECR
Weather
Air showers
Atmospheric effects
Atmospheric parameters
Atmospheric profile
Atmospheric variations
Lateral distributions
Pierre Auger observatory
Shower particle
Surface detectors
Augers
Cosmic rays
Cosmology
Ionizing radiation
Observatories
Buildings
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09276505_v32_n2_p89_Multitudinario
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_09276505_v32_n2_p89_Multitudinario
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spelling todo:paper_09276505_v32_n2_p89_Multitudinario2023-10-03T15:46:57Z Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory Multitudinario:473 Atmosphere Extensive air showers UHECR Weather Air showers Atmosphere Atmospheric effects Atmospheric parameters Atmospheric profile Atmospheric variations Extensive air showers Lateral distributions Pierre Auger observatory Shower particle Surface detectors UHECR Weather Augers Cosmic rays Cosmology Ionizing radiation Observatories Buildings Atmospheric parameters, such as pressure (P), temperature (T) and density (ρ ∝ P / T), affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auger Observatory. The rate of events shows a ∼ 10 % seasonal modulation and ∼ 2 % diurnal one. We find that the observed behaviour is explained by a model including the effects associated with the variations of P and ρ. The former affects the longitudinal development of air showers while the latter influences the Molière radius and hence the lateral distribution of the shower particles. The model is validated with full simulations of extensive air showers using atmospheric profiles measured at the site of the Pierre Auger Observatory. © 2009 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_09276505_v32_n2_p89_Multitudinario
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Atmosphere
Extensive air showers
UHECR
Weather
Air showers
Atmosphere
Atmospheric effects
Atmospheric parameters
Atmospheric profile
Atmospheric variations
Extensive air showers
Lateral distributions
Pierre Auger observatory
Shower particle
Surface detectors
UHECR
Weather
Augers
Cosmic rays
Cosmology
Ionizing radiation
Observatories
Buildings
spellingShingle Atmosphere
Extensive air showers
UHECR
Weather
Air showers
Atmosphere
Atmospheric effects
Atmospheric parameters
Atmospheric profile
Atmospheric variations
Extensive air showers
Lateral distributions
Pierre Auger observatory
Shower particle
Surface detectors
UHECR
Weather
Augers
Cosmic rays
Cosmology
Ionizing radiation
Observatories
Buildings
Multitudinario:473
Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
topic_facet Atmosphere
Extensive air showers
UHECR
Weather
Air showers
Atmosphere
Atmospheric effects
Atmospheric parameters
Atmospheric profile
Atmospheric variations
Extensive air showers
Lateral distributions
Pierre Auger observatory
Shower particle
Surface detectors
UHECR
Weather
Augers
Cosmic rays
Cosmology
Ionizing radiation
Observatories
Buildings
description Atmospheric parameters, such as pressure (P), temperature (T) and density (ρ ∝ P / T), affect the development of extensive air showers initiated by energetic cosmic rays. We have studied the impact of atmospheric variations on extensive air showers by means of the surface detector of the Pierre Auger Observatory. The rate of events shows a ∼ 10 % seasonal modulation and ∼ 2 % diurnal one. We find that the observed behaviour is explained by a model including the effects associated with the variations of P and ρ. The former affects the longitudinal development of air showers while the latter influences the Molière radius and hence the lateral distribution of the shower particles. The model is validated with full simulations of extensive air showers using atmospheric profiles measured at the site of the Pierre Auger Observatory. © 2009 Elsevier B.V. All rights reserved.
format JOUR
author Multitudinario:473
author_facet Multitudinario:473
author_sort Multitudinario:473
title Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
title_short Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
title_full Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
title_fullStr Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
title_full_unstemmed Atmospheric effects on extensive air showers observed with the surface detector of the Pierre Auger observatory
title_sort atmospheric effects on extensive air showers observed with the surface detector of the pierre auger observatory
url http://hdl.handle.net/20.500.12110/paper_09276505_v32_n2_p89_Multitudinario
work_keys_str_mv AT multitudinario473 atmosphericeffectsonextensiveairshowersobservedwiththesurfacedetectorofthepierreaugerobservatory
_version_ 1807314842527203328

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