Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory

We search for signals of magnetically-induced effects in the arrival directions of ultra-high-energy cosmic rays detected at the Pierre Auger Observatory. We apply two different methods. One is a search for sets of events that show a correlation between their arrival direction and the inverse of the...

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Autores principales: Calcagni, Laura Randa, Dova, María Teresa, Hansen, Patricia María, Mariazzi, Analisa Gabriela, Sciutto, Sergio Juan, Tueros, Matías Jorge, Vergara Quispe, Indira Dajhana, Wahlberg, Hernán Pablo
Formato: Articulo Preprint
Lenguaje:Español
Publicado: 2020
Materias:
Física
Cosmic ray
Physics
Pierre Auger Observatory
Observatory
Active galactic nucleus
Astrophysics
Coherence (physics)
Ultra-high-energy cosmic ray
Galaxy
Principal axis theorem
Electric charge
Thrust
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125981
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125981
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Física
Cosmic ray
Physics
Pierre Auger Observatory
Observatory
Active galactic nucleus
Astrophysics
Coherence (physics)
Ultra-high-energy cosmic ray
Galaxy
Principal axis theorem
Electric charge
Thrust
spellingShingle Física
Cosmic ray
Physics
Pierre Auger Observatory
Observatory
Active galactic nucleus
Astrophysics
Coherence (physics)
Ultra-high-energy cosmic ray
Galaxy
Principal axis theorem
Electric charge
Thrust
Calcagni, Laura Randa
Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Tueros, Matías Jorge
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
topic_facet Física
Cosmic ray
Physics
Pierre Auger Observatory
Observatory
Active galactic nucleus
Astrophysics
Coherence (physics)
Ultra-high-energy cosmic ray
Galaxy
Principal axis theorem
Electric charge
Thrust
description We search for signals of magnetically-induced effects in the arrival directions of ultra-high-energy cosmic rays detected at the Pierre Auger Observatory. We apply two different methods. One is a search for sets of events that show a correlation between their arrival direction and the inverse of their energy, which would be expected if they come from the same point-like source, they have the same electric charge and their deflection is relatively small and coherent. We refer to these sets of events as "multiplets". The second method, called "thrust", is a principal axis analysis aimed to detect the elongated patterns in a region of interest. We study the sensitivity of both methods using a benchmark simulation and we apply them to data in two different searches. The first search is done assuming as source candidates a list of nearby active galactic nuclei and starburst galaxies. The second is an all-sky blind search. We report the results and we find no statistically significant features. We discuss the compatibility of these results with the indications on the mass composition inferred from data of the Pierre Auger Observatory.
format Articulo
Preprint
author Calcagni, Laura Randa
Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Tueros, Matías Jorge
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
author_facet Calcagni, Laura Randa
Dova, María Teresa
Hansen, Patricia María
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Tueros, Matías Jorge
Vergara Quispe, Indira Dajhana
Wahlberg, Hernán Pablo
author_sort Calcagni, Laura Randa
title Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
title_short Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
title_full Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
title_fullStr Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
title_full_unstemmed Search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the Pierre Auger Observatory
title_sort search for magnetically-induced signatures in the arrival directions of ultra-high-energy cosmic rays measured at the pierre auger observatory
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/125981
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