Non-adiabatic perturbations in decaying vacuum cosmology

Detalhes bibliográficos
Autor(a) principal: Carneiro, Saulo
Data de Publicação: 2011
Outros Autores: Borges, H. A., Zimdahl, W., Fabris, J. C., Ricaldi, W. S. Hipólito
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/16050
Resumo: Texto completo: acesso restrito. p. 1-18
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spelling Carneiro, SauloBorges, H. A.Zimdahl, W.Fabris, J. C.Ricaldi, W. S. HipólitoCarneiro, SauloBorges, H. A.Zimdahl, W.Fabris, J. C.Ricaldi, W. S. Hipólito2014-09-11T17:39:47Z20111475-7516http://repositorio.ufba.br/ri/handle/ri/16050sem v.Texto completo: acesso restrito. p. 1-18We investigate a spatially flat Friedmann-Lemaˆıtre-Robertson-Walker cosmology in which a decaying vacuum term causes matter production at late times. Assuming a decay proportional to the Hubble rate, the ratio of the background energy densities of dark matter and dark energy changes with the cosmic scale factor as a−3/2. The intrinsically non-adiabatic two-component perturbation dynamics of this model is reduced to a single second-order equation. Perturbations of the vacuum term are shown to be negligible on scales that are relevant for structure formation. On larger scales, dark-energy perturbations give a somewhat higher contribution but remain always smaller than the dark-matter perturbations.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-04-03T12:57:39Z No. of bitstreams: 1 S. Carneiro.pdf: 312864 bytes, checksum: fe5119b25abc68a660fc3ba88b0a96aa (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-09-11T17:39:47Z (GMT) No. of bitstreams: 1 S. Carneiro.pdf: 312864 bytes, checksum: fe5119b25abc68a660fc3ba88b0a96aa (MD5)Made available in DSpace on 2014-09-11T17:39:47Z (GMT). No. of bitstreams: 1 S. Carneiro.pdf: 312864 bytes, checksum: fe5119b25abc68a660fc3ba88b0a96aa (MD5) Previous issue date: 2011http://dx.doi.org/ doi:10.1088/1475-7516/2011/04/028reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAGalaxy clusteringDark matter theoryDark energy theoryNon-adiabatic perturbations in decaying vacuum cosmologyJournal of Cosmology and Astroparticle Physicsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINALS. Carneiro.pdfS. Carneiro.pdfapplication/pdf312864https://repositorio.ufba.br/bitstream/ri/16050/1/S.%20Carneiro.pdffe5119b25abc68a660fc3ba88b0a96aaMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/16050/2/license.txt0d4b811ef71182510d2015daa7c8a900MD52TEXTS. Carneiro.pdf.txtS. Carneiro.pdf.txtExtracted texttext/plain44977https://repositorio.ufba.br/bitstream/ri/16050/3/S.%20Carneiro.pdf.txtc6828ffadecf7f9e0793e87751e59412MD53ri/160502022-07-05 14:03:49.182oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:49Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Non-adiabatic perturbations in decaying vacuum cosmology
dc.title.alternative.pt_BR.fl_str_mv Journal of Cosmology and Astroparticle Physics
title Non-adiabatic perturbations in decaying vacuum cosmology
spellingShingle Non-adiabatic perturbations in decaying vacuum cosmology
Carneiro, Saulo
Galaxy clustering
Dark matter theory
Dark energy theory
title_short Non-adiabatic perturbations in decaying vacuum cosmology
title_full Non-adiabatic perturbations in decaying vacuum cosmology
title_fullStr Non-adiabatic perturbations in decaying vacuum cosmology
title_full_unstemmed Non-adiabatic perturbations in decaying vacuum cosmology
title_sort Non-adiabatic perturbations in decaying vacuum cosmology
author Carneiro, Saulo
author_facet Carneiro, Saulo
Borges, H. A.
Zimdahl, W.
Fabris, J. C.
Ricaldi, W. S. Hipólito
author_role author
author2 Borges, H. A.
Zimdahl, W.
Fabris, J. C.
Ricaldi, W. S. Hipólito
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Carneiro, Saulo
Borges, H. A.
Zimdahl, W.
Fabris, J. C.
Ricaldi, W. S. Hipólito
Carneiro, Saulo
Borges, H. A.
Zimdahl, W.
Fabris, J. C.
Ricaldi, W. S. Hipólito
dc.subject.por.fl_str_mv Galaxy clustering
Dark matter theory
Dark energy theory
topic Galaxy clustering
Dark matter theory
Dark energy theory
description Texto completo: acesso restrito. p. 1-18
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2014-09-11T17:39:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/16050
dc.identifier.issn.none.fl_str_mv 1475-7516
dc.identifier.number.pt_BR.fl_str_mv sem v.
identifier_str_mv 1475-7516
sem v.
url http://repositorio.ufba.br/ri/handle/ri/16050
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.pt_BR.fl_str_mv http://dx.doi.org/ doi:10.1088/1475-7516/2011/04/028
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collection Repositório Institucional da UFBA
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