Dark matter halos and the anisotropy of ultra-high energy cosmic rays in the Pierre Auger observatory
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
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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Brazilian Journal of Physics |
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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 |
_version_ |
1754734863707013120 |