Quintessence dissipative superattractor cosmology

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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Detalles Bibliográficos
Publicado: 2001
Materias:
article
cosmos
entropy
luminance
mathematical analysis
molecular model
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v63_n10_p_Chimento
http://hdl.handle.net/20.500.12110/paper_05562821_v63_n10_p_Chimento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562821_v63_n10_p_Chimento
record_format dspace
spelling paper:paper_05562821_v63_n10_p_Chimento2023-06-08T15:42:25Z Quintessence dissipative superattractor cosmology article cosmos entropy luminance mathematical analysis molecular model 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 a= 1.71 ±0.29 for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations. ©2001 The American Physical Society. 2001 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v63_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_05562821_v63_n10_p_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic article
cosmos
entropy
luminance
mathematical analysis
molecular model
spellingShingle article
cosmos
entropy
luminance
mathematical analysis
molecular model
Quintessence dissipative superattractor cosmology
topic_facet article
cosmos
entropy
luminance
mathematical analysis
molecular model
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 a= 1.71 ±0.29 for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations. ©2001 The American Physical Society.
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
publishDate 2001
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v63_n10_p_Chimento
http://hdl.handle.net/20.500.12110/paper_05562821_v63_n10_p_Chimento
_version_ 1768544690221613056

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