Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory

Detalhes bibliográficos
Autor(a) principal: Siffert,Beatriz B.
Data de Publicação: 2007
Outros Autores: Lazarotto,B., Mello Neto,J. R. T. de, Olinto,Angela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000100016
Resumo: We analyze the cosmic ray arrival direction map that would be observed if the source of ultra high energy cosmic rays were the decay of dark matter particles in the halos of our galaxy and of the Andromeda galaxy (M31). To model the dark matter distribution throughout the halos we use two different density profiles, the Moore et al. and the Navarro-Frenk-White profile. The results show what would be seen by the Pierre Auger experiment, since we take into account its exposure. We evaluate the dipole and quadrupole terms for the resulting maps in the two density profiles cases and compare them with the terms expected for an isotropic sky.
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spelling Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatoryDark matterUltra-high energy cosmic raysPierre Auger experimentWe analyze the cosmic ray arrival direction map that would be observed if the source of ultra high energy cosmic rays were the decay of dark matter particles in the halos of our galaxy and of the Andromeda galaxy (M31). To model the dark matter distribution throughout the halos we use two different density profiles, the Moore et al. and the Navarro-Frenk-White profile. The results show what would be seen by the Pierre Auger experiment, since we take into account its exposure. We evaluate the dipole and quadrupole terms for the resulting maps in the two density profiles cases and compare them with the terms expected for an isotropic sky.Sociedade Brasileira de Física2007-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000100016Brazilian Journal of Physics v.37 n.1a 2007reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332007000100016info:eu-repo/semantics/openAccessSiffert,Beatriz B.Lazarotto,B.Mello Neto,J. R. T. deOlinto,Angelaeng2007-04-24T00:00:00Zoai:scielo:S0103-97332007000100016Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2007-04-24T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
title Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
spellingShingle Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
Siffert,Beatriz B.
Dark matter
Ultra-high energy cosmic rays
Pierre Auger experiment
title_short Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
title_full Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
title_fullStr Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
title_full_unstemmed Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
title_sort Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
author Siffert,Beatriz B.
author_facet Siffert,Beatriz B.
Lazarotto,B.
Mello Neto,J. R. T. de
Olinto,Angela
author_role author
author2 Lazarotto,B.
Mello Neto,J. R. T. de
Olinto,Angela
author2_role author
author
author
dc.contributor.author.fl_str_mv Siffert,Beatriz B.
Lazarotto,B.
Mello Neto,J. R. T. de
Olinto,Angela
dc.subject.por.fl_str_mv Dark matter
Ultra-high energy cosmic rays
Pierre Auger experiment
topic Dark matter
Ultra-high energy cosmic rays
Pierre Auger experiment
description We analyze the cosmic ray arrival direction map that would be observed if the source of ultra high energy cosmic rays were the decay of dark matter particles in the halos of our galaxy and of the Andromeda galaxy (M31). To model the dark matter distribution throughout the halos we use two different density profiles, the Moore et al. and the Navarro-Frenk-White profile. The results show what would be seen by the Pierre Auger experiment, since we take into account its exposure. We evaluate the dipole and quadrupole terms for the resulting maps in the two density profiles cases and compare them with the terms expected for an isotropic sky.
publishDate 2007
dc.date.none.fl_str_mv 2007-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000100016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332007000100016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332007000100016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.37 n.1a 2007
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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