Quintessence dissipative superattractor cosmology

Autores
Chimento, Luis Pascual; Jakubi, Alejandro S.; Zuccala, Norberto A.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the simplest quintessence dissipative dark matter attractor cosmology characterized by a constant quintessence baryotropic index and a power--law expansion. We show a class of accelerated coincidence--solving attractor solutions converging to this asymptotic behavior. Despite its simplicity, such a ``superattractor´´ regime provides a model of the recent universe that also exhibits an excellent fit to supernovae luminosity observations and no age conflict. Our best fit gives $alpha=1.71pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Jakubi, Alejandro S.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Zuccala, Norberto A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Materia
dark matter
power-law expansion
supernovae luminosity observations
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/79241
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/79241
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network_name_str CONICET Digital (CONICET)
spelling Quintessence dissipative superattractor cosmologyChimento, Luis PascualJakubi, Alejandro S.Zuccala, Norberto A.dark matterpower-law expansionsupernovae luminosity observationshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the simplest quintessence dissipative dark matter attractor cosmology characterized by a constant quintessence baryotropic index and a power--law expansion. We show a class of accelerated coincidence--solving attractor solutions converging to this asymptotic behavior. Despite its simplicity, such a ``superattractor´´ regime provides a model of the recent universe that also exhibits an excellent fit to supernovae luminosity observations and no age conflict. Our best fit gives $alpha=1.71pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Jakubi, Alejandro S.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Zuccala, Norberto A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaAmerican Physical Society2001-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/79241Chimento, Luis Pascual; Jakubi, Alejandro S.; Zuccala, Norberto A.; Quintessence dissipative superattractor cosmology; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; D63; 4-2001; 1035081-103508101550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.63.103508info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:23Zoai:ri.conicet.gov.ar:11336/79241instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:10:23.765CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Quintessence dissipative superattractor cosmology
title Quintessence dissipative superattractor cosmology
spellingShingle Quintessence dissipative superattractor cosmology
Chimento, Luis Pascual
dark matter
power-law expansion
supernovae luminosity observations
title_short Quintessence dissipative superattractor cosmology
title_full Quintessence dissipative superattractor cosmology
title_fullStr Quintessence dissipative superattractor cosmology
title_full_unstemmed Quintessence dissipative superattractor cosmology
title_sort Quintessence dissipative superattractor cosmology
dc.creator.none.fl_str_mv Chimento, Luis Pascual
Jakubi, Alejandro S.
Zuccala, Norberto A.
author Chimento, Luis Pascual
author_facet Chimento, Luis Pascual
Jakubi, Alejandro S.
Zuccala, Norberto A.
author_role author
author2 Jakubi, Alejandro S.
Zuccala, Norberto A.
author2_role author
author
dc.subject.none.fl_str_mv dark matter
power-law expansion
supernovae luminosity observations
topic dark matter
power-law expansion
supernovae luminosity observations
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigate the simplest quintessence dissipative dark matter attractor cosmology characterized by a constant quintessence baryotropic index and a power--law expansion. We show a class of accelerated coincidence--solving attractor solutions converging to this asymptotic behavior. Despite its simplicity, such a ``superattractor´´ regime provides a model of the recent universe that also exhibits an excellent fit to supernovae luminosity observations and no age conflict. Our best fit gives $alpha=1.71pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.
Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Jakubi, Alejandro S.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Zuccala, Norberto A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
description We investigate the simplest quintessence dissipative dark matter attractor cosmology characterized by a constant quintessence baryotropic index and a power--law expansion. We show a class of accelerated coincidence--solving attractor solutions converging to this asymptotic behavior. Despite its simplicity, such a ``superattractor´´ regime provides a model of the recent universe that also exhibits an excellent fit to supernovae luminosity observations and no age conflict. Our best fit gives $alpha=1.71pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.
publishDate 2001
dc.date.none.fl_str_mv 2001-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/79241
Chimento, Luis Pascual; Jakubi, Alejandro S.; Zuccala, Norberto A.; Quintessence dissipative superattractor cosmology; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; D63; 4-2001; 1035081-10350810
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/79241
identifier_str_mv Chimento, Luis Pascual; Jakubi, Alejandro S.; Zuccala, Norberto A.; Quintessence dissipative superattractor cosmology; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; D63; 4-2001; 1035081-10350810
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.63.103508
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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