Quintessence dissipative superattractor cosmology

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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 simpli...

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Autores principales: Chimento, L.P., Jakubi, A.S., Zuccalá, N.A.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15507998_v63_n10_p10_Chimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_15507998_v63_n10_p10_Chimento
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spelling todo:paper_15507998_v63_n10_p10_Chimento2023-10-03T16:23:44Z Quintessence dissipative superattractor cosmology Chimento, L.P. Jakubi, A.S. Zuccalá, N.A. 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 (Formula presented) for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations. © 2001 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15507998_v63_n10_p10_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
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 (Formula presented) for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations. © 2001 The American Physical Society.
format JOUR
author Chimento, L.P.
Jakubi, A.S.
Zuccalá, N.A.
spellingShingle Chimento, L.P.
Jakubi, A.S.
Zuccalá, N.A.
Quintessence dissipative superattractor cosmology
author_facet Chimento, L.P.
Jakubi, A.S.
Zuccalá, N.A.
author_sort Chimento, L.P.
title Quintessence dissipative superattractor cosmology
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
url http://hdl.handle.net/20.500.12110/paper_15507998_v63_n10_p10_Chimento
work_keys_str_mv AT chimentolp quintessencedissipativesuperattractorcosmology
AT jakubias quintessencedissipativesuperattractorcosmology
AT zuccalana quintessencedissipativesuperattractorcosmology
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