Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term

Detalhes bibliográficos
Autor(a) principal: Borges, H. A.
Data de Publicação: 2008
Outros Autores: Carneiro, Saulo, Fabris, J. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13898
Resumo: p. 1-9
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spelling Borges, H. A.Carneiro, SauloFabris, J. C.2013-11-26T13:01:21Z2013-11-26T13:01:21Z20081550-7998http://repositorio.ufba.br/ri/handle/ri/13898v. 78, n. 12p. 1-9We extend the results of a previous paper where a model of interacting dark energy, with a cosmological term decaying linearly with the Hubble parameter, is tested against the observed mass power spectrum. In spite of the agreement with observations of type Ia supernovas, baryonic acoustic oscillations, and the cosmic microwave background, we had shown previously that no good concordance is achieved if we include the mass power spectrum. However, our analysis was based on the ad hoc assumption that the interacting cosmological term is strictly homogeneous. Now we perform a more complete analysis, by perturbing such a term. Although our conclusions are still based on a particular, scale-invariant choice of the primordial spectrum of dark energy perturbations, we show that a cosmological term decaying linearly with the Hubble parameter is indeed disfavored as compared to the standard model.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-11-19T11:37:20Z No. of bitstreams: 1 PhysRevD.78.123522.pdf: 187635 bytes, checksum: d1f9775baf53840dbb22fc8bb2ae0bbf (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2013-11-26T13:01:21Z (GMT) No. of bitstreams: 1 PhysRevD.78.123522.pdf: 187635 bytes, checksum: d1f9775baf53840dbb22fc8bb2ae0bbf (MD5)Made available in DSpace on 2013-11-26T13:01:21Z (GMT). No. of bitstreams: 1 PhysRevD.78.123522.pdf: 187635 bytes, checksum: d1f9775baf53840dbb22fc8bb2ae0bbf (MD5) Previous issue date: 2008http://dx.doi.org/10.1103/PhysRevD.78.123522reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAEvolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological termPhysical Review Dinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALPhysRevD.78.123522.pdfPhysRevD.78.123522.pdfapplication/pdf187635https://repositorio.ufba.br/bitstream/ri/13898/1/PhysRevD.78.123522.pdfd1f9775baf53840dbb22fc8bb2ae0bbfMD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/13898/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTPhysRevD.78.123522.pdf.txtPhysRevD.78.123522.pdf.txtExtracted texttext/plain40353https://repositorio.ufba.br/bitstream/ri/13898/3/PhysRevD.78.123522.pdf.txtde090f7a2a3ad490ac4b7a5f3f3bc8bcMD53ri/138982022-03-10 13:51:58.325oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-03-10T16:51:58Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
dc.title.alternative.pt_BR.fl_str_mv Physical Review D
title Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
spellingShingle Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
Borges, H. A.
title_short Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
title_full Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
title_fullStr Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
title_full_unstemmed Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
title_sort Evolution of density perturbations in decaying vacuum cosmology: the case of nonzero perturbations in the cosmological term
author Borges, H. A.
author_facet Borges, H. A.
Carneiro, Saulo
Fabris, J. C.
author_role author
author2 Carneiro, Saulo
Fabris, J. C.
author2_role author
author
dc.contributor.author.fl_str_mv Borges, H. A.
Carneiro, Saulo
Fabris, J. C.
description p. 1-9
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2013-11-26T13:01:21Z
dc.date.available.fl_str_mv 2013-11-26T13:01:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/13898
dc.identifier.issn.none.fl_str_mv 1550-7998
dc.identifier.number.pt_BR.fl_str_mv v. 78, n. 12
identifier_str_mv 1550-7998
v. 78, n. 12
url http://repositorio.ufba.br/ri/handle/ri/13898
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.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.78.123522
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