Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component

We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their...

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Autores principales: Chimento, Luis Pascual, Richarte, Martín Gustavo
Publicado: 2012
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v85_n12_p_Chimento
http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_p_Chimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_15507998_v85_n12_p_Chimento2023-06-08T16:22:24Z Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component Chimento, Luis Pascual Richarte, Martín Gustavo We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their derivatives up to second order. We apply the χ2 method to the observational Hubble data for constraining the cosmological parameters, and analyze the amount of dark energy in the radiation era for both MHRDE and holographic Ricci dark energy models. The former is consistent with the bound Ω x(z1100)<0.1 reported for the behavior of dark energy at early times, while the latter does not fulfill it. © 2012 American Physical Society. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Richarte, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v85_n12_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_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)
description We investigate a spatially flat Friedmann-Robertson-Walker universe that has an interacting dark matter, a modified holographic Ricci dark energy (MHRDE), plus a third, decoupled component that behaves as a radiation term. We consider a nonlinear interaction in the dark component densities and their derivatives up to second order. We apply the χ2 method to the observational Hubble data for constraining the cosmological parameters, and analyze the amount of dark energy in the radiation era for both MHRDE and holographic Ricci dark energy models. The former is consistent with the bound Ω x(z1100)<0.1 reported for the behavior of dark energy at early times, while the latter does not fulfill it. © 2012 American Physical Society.
author Chimento, Luis Pascual
Richarte, Martín Gustavo
spellingShingle Chimento, Luis Pascual
Richarte, Martín Gustavo
Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
author_facet Chimento, Luis Pascual
Richarte, Martín Gustavo
author_sort Chimento, Luis Pascual
title Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
title_short Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
title_full Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
title_fullStr Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
title_full_unstemmed Interacting dark matter and modified holographic Ricci dark energy plus a noninteracting cosmic component
title_sort interacting dark matter and modified holographic ricci dark energy plus a noninteracting cosmic component
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v85_n12_p_Chimento
http://hdl.handle.net/20.500.12110/paper_15507998_v85_n12_p_Chimento
work_keys_str_mv AT chimentoluispascual interactingdarkmatterandmodifiedholographicriccidarkenergyplusanoninteractingcosmiccomponent
AT richartemartingustavo interactingdarkmatterandmodifiedholographicriccidarkenergyplusanoninteractingcosmiccomponent
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